WO2022239373A1 - Unité d'alimentation électrique pour dispositif de génération d'aérosol - Google Patents

Unité d'alimentation électrique pour dispositif de génération d'aérosol Download PDF

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Publication number
WO2022239373A1
WO2022239373A1 PCT/JP2022/007926 JP2022007926W WO2022239373A1 WO 2022239373 A1 WO2022239373 A1 WO 2022239373A1 JP 2022007926 W JP2022007926 W JP 2022007926W WO 2022239373 A1 WO2022239373 A1 WO 2022239373A1
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WO
WIPO (PCT)
Prior art keywords
power supply
terminal
mcu
voltage
thermistor
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PCT/JP2022/007926
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English (en)
Japanese (ja)
Inventor
達也 青山
拓嗣 川中子
徹 長浜
貴司 藤木
亮 吉田
Original Assignee
日本たばこ産業株式会社
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Application filed by 日本たばこ産業株式会社 filed Critical 日本たばこ産業株式会社
Publication of WO2022239373A1 publication Critical patent/WO2022239373A1/fr

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present invention relates to a power supply unit for an aerosol generator.
  • Patent Document 1 describes that in an electronic cigarette temperature control system that includes a power supply device, a heating element, and a controller, an amplifier is used to obtain a voltage applied across a resistor connected in series with the heating element. ing.
  • Patent Document 2 describes a vaporizer comprising a heater and a controller coupled to the heater and configured to heat the heater to a certain temperature.
  • the heater voltage is obtained using two operational amplifiers.
  • Patent Document 3 discloses a main body, a nebulizer in the main body, a microcontroller, a power supply in the main body electrically connected to the microcontroller and the nebulizer, and a power source electrically connected to the microcontroller. and a mass air flow sensor.
  • a circuit combining a thermocouple and an operational amplifier is disclosed as this mass air flow sensor.
  • an operational amplifier is used to grasp the status of the device, such as temperature, in order to improve control accuracy.
  • Operational amplifiers may exhibit unstable output signal behavior when the power is turned on or when the power supply potential changes. If the output signal becomes unstable in this way, there is a possibility that the accuracy of the control will deteriorate.
  • the purpose of the present invention is to provide an aerosol generator with improved control accuracy.
  • a power supply unit of an aerosol generating apparatus includes a power supply, a heater connector connected to a heater that consumes the power supplied from the power supply to heat the aerosol source, a controller, and a controller connected to the controller.
  • a power supply unit of an aerosol generating apparatus includes a power supply, a heater connector to which a heater that consumes the power supplied from the power supply to heat the aerosol source is connected, and power from the power supply to the heater. and configured to be operable in a sleep mode, an output terminal connected to said MCU, a positive power supply terminal, a negative power supply terminal, a non-inverting input terminal, and an inverting input terminal , a voltage divider circuit including a thermistor, a fixed resistor, and a node connecting the thermistor and the fixed resistor in series, the node being connected to the non-inverting input terminal and the inverting input terminal. connected to one of the input terminals, the positive power supply terminal being powered while the MCU is operating in the sleep mode, and the voltage divider circuit being powered while the MCU is operating in the sleep mode. , not powered.
  • FIG. 1 is a perspective view of a non-combustion inhaler
  • FIG. 1 is a perspective view of a non-combustion inhaler showing a state in which a rod is attached
  • FIG. Fig. 10 is another perspective view of a non-combustion type inhaler
  • 1 is an exploded perspective view of a non-combustion inhaler
  • FIG. Fig. 3 is a perspective view of the internal unit of the non-combustion inhaler
  • FIG. 6 is an exploded perspective view of the internal unit of FIG. 5
  • FIG. 3 is a perspective view of the internal unit with the power supply and chassis removed
  • FIG. 11 is another perspective view of the internal unit with the power supply and chassis removed
  • It is a schematic diagram for demonstrating the operation mode of an aspirator.
  • FIG. 4 is a diagram for explaining the operation of an electric circuit in sleep mode; It is a figure for demonstrating the operation
  • FIG. 4 is a diagram for explaining the operation of the electric circuit in the heating initial setting mode; It is a figure for demonstrating the operation
  • FIG. 5 is a diagram for explaining the operation of the electric circuit when detecting the temperature of the heater in the heating mode; FIG.
  • FIG. 4 is a diagram for explaining the operation of the electric circuit in charging mode;
  • FIG. 4 is a diagram for explaining the operation of an electric circuit when an MCU is reset (restarted);
  • FIG. 10 is a schematic diagram for explaining suction operation detection processing by an MCU using a puff thermistor;
  • FIG. 11 is a circuit diagram of a main part of the electric circuit shown in FIG. 10, showing the main electronic components related to the thermistor.
  • FIG. 22 is a diagram extracting and showing a portion of a range AR surrounded by a dashed line in FIG. 21; It is a figure which put together the specific example of the pattern of the protection control performed in an aspirator.
  • FIG. 5 is a flowchart for explaining an example of operations of the fuel gauge IC and the MCU when a high temperature notification signal is output from the fuel gauge IC in a sleep mode;
  • Figure 2 is a cross-sectional view in a plane through case thermistor T4 of the suction device shown in Figure 1;
  • Figure 2 is a cross-sectional view in a plane through case thermistor T4 of the suction device shown in Figure 1;
  • suction system which is one embodiment of the aerosol generator of the present invention, will be described below with reference to the drawings.
  • This suction system includes a non-combustion type suction device 100 (hereinafter also simply referred to as "suction device 100"), which is an embodiment of the power supply unit of the present invention, and a rod 500 heated by the suction device 100.
  • suction device 100 a non-combustion type suction device 100
  • the suction device 100 accommodates the heating unit in a non-detachable manner
  • the heating unit may be detachably attached to the aspirator 100 .
  • the rod 500 and the heating unit may be integrated and detachably attached to the aspirator 100 .
  • the power supply unit of the aerosol generator may have a configuration that does not include the heating section as a component.
  • “non-detachable” refers to a mode in which detachment is not possible as far as the intended use is concerned.
  • an induction heating coil provided in the aspirator 100 and a susceptor built in the rod 500 may cooperate to form a heating unit.
  • FIG. 1 is a perspective view showing the overall configuration of the aspirator 100.
  • FIG. FIG. 2 is a perspective view of the suction device 100 showing a state in which the rod 500 is attached.
  • FIG. 3 is another perspective view of the suction device 100.
  • FIG. FIG. 4 is an exploded perspective view of the aspirator 100.
  • FIG. Also, in the following description, for the sake of convenience, the orthogonal coordinate system of a three-dimensional space is used, in which the three mutually orthogonal directions are the front-back direction, the left-right direction, and the up-down direction. In the figure, the front is indicated by Fr, the rear by Rr, the right by R, the left by L, the upper by U, and the lower by D.
  • the inhaler 100 generates flavor-containing aerosol by heating an elongated, substantially cylindrical rod 500 (see FIG. 2) as an example of a flavor component-generating base having a filling containing an aerosol source and a flavor source. configured to
  • Rod 500 includes a fill containing an aerosol source that is heated at a predetermined temperature to produce an aerosol.
  • the type of aerosol source is not particularly limited, and extracts from various natural products and/or their constituent components can be selected according to the application.
  • the aerosol source may be solid or liquid, for example polyhydric alcohols such as glycerin, propylene glycol, or water.
  • the aerosol source may include a flavor source such as a tobacco material or an extract derived from the tobacco material that releases flavor components upon heating.
  • the gas to which the flavor component is added is not limited to an aerosol, and for example an invisible vapor may be generated.
  • the filling of rod 500 may contain tobacco shreds as a flavor source.
  • Materials for shredded tobacco are not particularly limited, and known materials such as lamina and backbone can be used.
  • the filling may contain one or more perfumes.
  • the type of flavoring agent is not particularly limited, but menthol is preferable from the viewpoint of imparting a good smoking taste.
  • Flavor sources may contain plants other than tobacco, such as mints, herbal medicines, or herbs. Depending on the application, rod 500 may not contain a flavor source.
  • the suction device 100 includes a substantially rectangular parallelepiped case 110 having a front surface, a rear surface, a left surface, a right surface, an upper surface, and a lower surface.
  • the case 110 comprises a bottomed cylindrical case body 112 in which front, rear, top, bottom, and right surfaces are integrally formed, and a left surface that seals an opening 114 (see FIG. 4) of the case body 112. It has an outer panel 115 , an inner panel 118 , and a slider 119 .
  • the inner panel 118 is fixed to the case body 112 with bolts 120 .
  • the outer panel 115 is fixed to the case body 112 so as to cover the outer surface of the inner panel 118 by a magnet 124 held by a chassis 150 (see FIG. 5) housed in the case body 112 and described later. Since the outer panel 115 is fixed by the magnet 124, the user can replace the outer panel 115 according to his or her preference.
  • the inner panel 118 is provided with two through holes 126 through which the magnets 124 pass.
  • the inner panel 118 is further provided with a longitudinally elongated hole 127 and a circular round hole 128 between the two vertically arranged through holes 126 .
  • This long hole 127 is for transmitting light emitted from eight LEDs (Light Emitting Diodes) L1 to L8 built in the case body 112 .
  • a button-type operation switch OPS built in the case body 112 passes through the round hole 128 . Thereby, the user can detect the light emitted from the eight LEDs L1 to L8 through the LED window 116 of the outer panel 115. FIG. Also, the user can press down the operation switch OPS via the pressing portion 117 of the outer panel 115 .
  • the upper surface of the case body 112 is provided with an opening 132 into which the rod 500 can be inserted.
  • the slider 119 is coupled to the case body 112 so as to be movable in the front-rear direction between a position for closing the opening 132 (see FIG. 1) and a position for opening the opening 132 (see FIG. 2).
  • the operation switch OPS is used to perform various operations of the aspirator 100.
  • the user operates the operation switch OPS via the pressing portion 117 while inserting the rod 500 into the opening 132 as shown in FIG.
  • the heating unit 170 (see FIG. 5) heats the rod 500 without burning it.
  • an aerosol is generated from the aerosol source contained in the rod 500 and the flavor of the flavor source contained in the rod 500 is added to the aerosol.
  • the user can inhale the flavor-containing aerosol by holding the mouthpiece 502 of the rod 500 projecting from the opening 132 and inhaling.
  • a charging terminal 134 is provided for receiving power supply by being electrically connected to an external power source such as an outlet or a mobile battery.
  • the charging terminal 134 is a USB (Universal Serial Bus) Type-C receptacle, but is not limited to this.
  • Charging terminal 134 is hereinafter also referred to as receptacle RCP.
  • the charging terminal 134 may include, for example, a power receiving coil and be configured to be capable of contactlessly receiving power transmitted from an external power supply.
  • the wireless power transfer method in this case may be an electromagnetic induction type, a magnetic resonance type, or a combination of the electromagnetic induction type and the magnetic resonance type.
  • the charging terminal 134 can be connected to various USB terminals or the like, and may have the power receiving coil described above.
  • the configuration of the aspirator 100 shown in FIGS. 1-4 is merely an example.
  • the inhaler 100 holds the rod 500 and applies an action such as heating to generate gas to which a flavor component is added from the rod 500, and the user can inhale the generated gas. It can be configured in various forms.
  • FIG. 5 is a perspective view of the internal unit 140 of the suction device 100.
  • FIG. 6 is an exploded perspective view of the internal unit 140 of FIG. 5.
  • FIG. 7 is a perspective view of internal unit 140 with power supply BAT and chassis 150 removed.
  • FIG. 8 is another perspective view of the internal unit 140 with the power supply BAT and chassis 150 removed.
  • the internal unit 140 housed in the internal space of the case 110 includes a chassis 150, a power supply BAT, a circuit section 160, a heating section 170, a notification section 180, and various sensors.
  • the chassis 150 includes a plate-shaped chassis body 151 arranged substantially in the center of the interior space of the case 110 in the front-rear direction and extending in the vertical and front-rear directions, and a chassis body 151 disposed substantially in the center of the interior space of the case 110 in the front-rear direction.
  • a plate-shaped front and rear dividing wall 152 extending in the vertical and horizontal directions
  • a plate-shaped upper and lower dividing wall 153 extending forward from substantially the center of the front and rear dividing wall 152 in the vertical direction
  • the front and rear dividing wall 152 and the upper edges of the chassis body 151 and a plate-shaped chassis lower wall 155 extending rearward from the front-rear dividing wall 152 and the lower edge of the chassis body 151 .
  • the left surface of the chassis body 151 is covered with the inner panel 118 and the outer panel 115 of the case 110 described above.
  • the internal space of the case 110 is defined by a chassis 150 such that a heating unit housing area 142 is defined in the upper front, a board housing area 144 is defined in the lower front, and a power supply housing space 146 is defined in the rear to extend vertically. ing.
  • the heating part 170 housed in the heating part housing area 142 is composed of a plurality of tubular members, which are concentrically arranged to form a tubular body as a whole.
  • the heating section 170 has a rod housing section 172 capable of housing a portion of the rod 500 therein, and a heater HTR (see FIGS. 10 to 19) that heats the rod 500 from its outer circumference or center.
  • the surface of the rod housing portion 172 and the heater HTR are insulated by forming the rod housing portion 172 from a heat insulating material or providing a heat insulating material inside the rod housing portion 172 .
  • the heater HTR may be any element that can heat the rod 500 .
  • the heater HTR is, for example, a heating element.
  • Heating elements include heating resistors, ceramic heaters, induction heaters, and the like.
  • the heater HTR for example, one having a PTC (Positive Temperature Coefficient) characteristic in which the resistance value increases as the temperature increases is preferably used.
  • a heater HTR having NTC (Negative Temperature Coefficient) characteristics in which the resistance value decreases as the temperature increases may be used.
  • the heating part 170 has a function of defining a flow path of air to be supplied to the rod 500 and a function of heating the rod 500 .
  • the case 110 is formed with a vent (not shown) for introducing air, and is configured to allow air to enter the heating unit 170 .
  • the power supply BAT housed in the power supply housing space 146 is a rechargeable secondary battery, an electric double layer capacitor, or the like, preferably a lithium ion secondary battery.
  • the electrolyte of the power supply BAT may be composed of one or a combination of a gel electrolyte, an electrolytic solution, a solid electrolyte, and an ionic liquid.
  • the notification unit 180 notifies various information such as the SOC (State Of Charge) indicating the state of charge of the power supply BAT, the preheating time during suction, and the suction possible period.
  • the notification unit 180 of this embodiment includes eight LEDs L1 to L8 and a vibration motor M.
  • the notification unit 180 may be composed of light emitting elements such as LEDs L1 to L8, may be composed of vibrating elements such as the vibration motor M, or may be composed of sound output elements.
  • the notification unit 180 may be a combination of two or more elements selected from the light emitting element, the vibration element, and the sound output element.
  • Various sensors include an intake air sensor that detects the user's puff action (sucking action), a power supply temperature sensor that detects the temperature of the power supply BAT, a heater temperature sensor that detects the temperature of the heater HTR, and a case temperature sensor that detects the temperature of the case 110. , a cover position sensor that detects the position of the slider 119, a panel detection sensor that detects attachment/detachment of the outer panel 115, and the like.
  • the intake sensor is mainly composed of a thermistor T2 arranged near the opening 132, for example.
  • the power supply temperature sensor is mainly composed of, for example, a thermistor T1 arranged near the power supply BAT.
  • the heater temperature sensor is mainly composed of, for example, a thermistor T3 arranged near the heater HTR.
  • the rod housing portion 172 is preferably insulated from the heater HTR.
  • the thermistor T3 is preferably in contact with or close to the heater HTR inside the rod housing portion 172 . If the heater HTR has PTC characteristics or NTC characteristics, the heater HTR itself may be used as the heater temperature sensor.
  • the case temperature sensor is mainly composed of, for example, a thermistor T4 arranged near the left surface of the case 110 .
  • Thermistor T4 is preferably in contact with or in close proximity to case 110 .
  • the cover position sensor is mainly composed of a Hall IC 14 including a Hall element arranged near the slider 119 .
  • the panel detection sensor is mainly composed of a Hall IC 13 including a Hall element arranged near the inner surface of the inner panel 118 .
  • the circuit section 160 includes four circuit boards, multiple ICs (Integrate Circuits), and multiple elements.
  • the four circuit boards are an MCU-mounted board 161 on which an MCU (Micro Controller Unit) 1 and a charging IC 2, which will be described later, are mainly arranged, a receptacle-mounted board 162 mainly on which charging terminals 134 are arranged, an operation switch OPS, and an LED An LED mounting substrate 163 on which L1 to L8 and a communication IC 15 described later are arranged, and a Hall IC mounting substrate 164 on which a Hall IC 14 including a Hall element constituting a cover position sensor is arranged.
  • the MCU mounting board 161 and the receptacle mounting board 162 are arranged parallel to each other in the board accommodation area 144 . More specifically, the MCU mounting board 161 and the receptacle mounting board 162 are arranged such that their element mounting surfaces are arranged along the horizontal direction and the vertical direction, and the MCU mounting board 161 is arranged in front of the receptacle mounting board 162. .
  • the MCU mounting board 161 and the receptacle mounting board 162 are each provided with openings.
  • the MCU mounting board 161 and the receptacle mounting board 162 are fastened with bolts 136 to the board fixing portion 156 of the front/rear dividing wall 152 with a cylindrical spacer 173 interposed between the peripheral edges of these openings.
  • the spacer 173 fixes the positions of the MCU mounting board 161 and the receptacle mounting board 162 inside the case 110 and mechanically connects the MCU mounting board 161 and the receptacle mounting board 162 .
  • the MCU mounting board 161 and the receptacle mounting board 162 it is possible to prevent the MCU mounting board 161 and the receptacle mounting board 162 from coming into contact with each other and causing a short-circuit current between them.
  • the MCU mounting board 161 and the receptacle mounting board 162 have main surfaces 161a and 162a that face forward, and secondary surfaces 161b and 162b that are opposite to the main surfaces 161a and 162a. and the main surface 162a of the receptacle mounting substrate 162 face each other with a predetermined gap therebetween.
  • a main surface 161 a of the MCU mounting board 161 faces the front surface of the case 110
  • a secondary surface 162 b of the receptacle mounting board 162 faces the front and rear dividing walls 152 of the chassis 150 .
  • Elements and ICs mounted on the MCU mounting board 161 and the receptacle mounting board 162 will be described later.
  • the LED mounting board 163 is arranged on the left side of the chassis body 151 and between the two magnets 124 arranged vertically.
  • the element mounting surface of the LED mounting substrate 163 is arranged along the vertical direction and the front-rear direction.
  • the element mounting surfaces of the MCU mounting board 161 and the receptacle mounting board 162 are orthogonal to the element mounting surface of the LED mounting board 163 .
  • the element mounting surfaces of the MCU mounting board 161 and the receptacle mounting board 162 and the element mounting surface of the LED mounting board 163 are not limited to being orthogonal, but preferably intersect (non-parallel).
  • the vibration motor M which forms the notification unit 180 together with the LEDs L1 to L8, is fixed to the bottom surface of the chassis bottom wall 155 and electrically connected to the MCU mounting board 161.
  • the Hall IC mounting board 164 is arranged on the upper surface of the chassis upper wall 154 .
  • FIG. 9 is a schematic diagram for explaining the operation modes of the aspirator 100.
  • the operating modes of the suction device 100 include charging mode, sleep mode, active mode, heating initialization mode, heating mode, and heating termination mode.
  • the sleep mode is a mode for saving power by stopping the power supply to the electronic parts required for heating control of the heater HTR.
  • the active mode is a mode in which most functions except heating control of the heater HTR are enabled.
  • the operation mode is switched to the active mode.
  • the slider 119 is closed or the non-operating time of the operation switch OPS reaches a predetermined time while the aspirator 100 is operating in the active mode, the operating mode is switched to the sleep mode.
  • the heating initial setting mode is a mode for initializing control parameters and the like for starting heating control of the heater HTR.
  • the aspirator 100 detects the operation of the operation switch OPS while operating in the active mode, it switches the operation mode to the heating initial setting mode, and when the initial setting is completed, switches the operation mode to the heating mode.
  • the heating mode is a mode that executes heating control of the heater HTR (heating control for aerosol generation and heating control for temperature detection).
  • the aspirator 100 starts heating control of the heater HTR when the operation mode is switched to the heating mode.
  • the heating end mode is a mode for executing heating control end processing (heating history storage processing, etc.) of the heater HTR.
  • the operation mode is switched to the heating end mode.
  • the operation mode is switched to the active mode.
  • the USB connection is established while the aspirator 100 is operating in the heating mode, the operating mode is switched to the heating end mode, and when the end processing is completed, the operating mode is switched to the charging mode. As shown in FIG.
  • the operating mode may be switched to the active mode before switching the operating mode to the charging mode.
  • the aspirator 100 may switch the operation mode in order of the heating end mode, the active mode, and the charging mode when the USB connection is made while operating in the heating mode.
  • the charging mode is a mode in which the power supply BAT is charged with power supplied from an external power supply connected to the receptacle RCP.
  • the aspirator 100 switches the operation mode to the charge mode when an external power source is connected (USB connection) to the receptacle RCP while operating in sleep mode or active mode.
  • the aspirator 100 switches the operation mode to the sleep mode when the charging of the power supply BAT is completed or the connection between the receptacle RCP and the external power supply is released while operating in the charging mode.
  • FIG. 11 shows a range 161A mounted on the MCU mounting board 161 (range surrounded by thick dashed lines) and a range 163A mounted on the LED mounting board 163 (range surrounded by thick solid lines) in the electric circuit shown in FIG.
  • FIG. 12 is the same as FIG. 10 except that a range 162A mounted on the receptacle mounting board 162 and a range 164A mounted on the Hall IC mounting board 164 are added to the electric circuit shown in FIG. is.
  • the wiring indicated by the thick solid line in FIG. 10 is the wiring (the wiring connected to the ground provided in the internal unit 140) that has the same potential as the reference potential (ground potential) of the internal unit 140. It is described as a ground line below.
  • an electronic component in which a plurality of circuit elements are chipped is indicated by a rectangle, and the symbols of various terminals are indicated inside the rectangle.
  • a power supply terminal VCC and a power supply terminal VDD mounted on the chip indicate power supply terminals on the high potential side, respectively.
  • a power supply terminal VSS and a ground terminal GND mounted on the chip indicate power supply terminals on the low potential side (reference potential side).
  • the power supply voltage is the difference between the potential of the power supply terminal on the high potential side and the potential of the power supply terminal on the low potential side. Chipped electronic components use this power supply voltage to perform various functions.
  • the MCU-mounted board 161 includes, as main electronic components, an MCU1 that controls the entire sucker 100, a charging IC2 that controls charging of the power source BAT, a capacitor, a resistor load switches (hereinafter referred to as LSW) 3, 4, 5, a ROM (Read Only Memory) 6, a switch driver 7, and a step-up/step-down DC/DC converter 8 (in the figure, buck-boost DC/DC 8), operational amplifier OP2, operational amplifier OP3, flip-flops (FF) 16, 17, connector Cn (t2) (which is electrically connected to thermistor T2 constituting an intake sensor) ( The figure shows the thermistor T2 connected to this connector), and a connector Cn(t3) electrically connected to the thermistor T3 constituting the heater temperature sensor (the figure shows the thermistor T3 connected to this connector).
  • LSW resistor load switches
  • LSW resistor load switches
  • ROM Read Only Memory
  • switch driver 7 a switch driver 7
  • a ground terminal GND of each of the charging IC 2, LSW3, LSW4, LSW5, switch driver 7, step-up/step-down DC/DC converter 8, FF16, and FF17 is connected to a ground line.
  • a power terminal VSS of the ROM 6 is connected to the ground line.
  • a negative power supply terminal of each of the operational amplifiers OP2 and OP3 is connected to the ground line.
  • the LED mounting board 163 (area 163A) has, as main electronic components, a Hall IC 13 including a Hall element constituting a panel detection sensor, LEDs L1 to L8, an operation switch OPS, a communication IC 15 and are provided.
  • the communication IC 15 is a communication module for communicating with electronic devices such as smartphones.
  • a power supply terminal VSS of the Hall IC 13 and a ground terminal GND of the communication IC 15 are each connected to a ground line.
  • Communication IC 15 and MCU 1 are configured to be communicable via communication line LN.
  • One end of the operation switch OPS is connected to the ground line, and the other end of the operation switch OPS is connected to the terminal P4 of the MCU1.
  • the receptacle mounting board 162 (range 162A) includes a power connector electrically connected to the power supply BAT as a main electronic component (in the figure, the power supply BAT connected to this power connector is shown). ), a connector electrically connected to a thermistor T1 constituting a power supply temperature sensor (in the figure, the thermistor T1 connected to this connector is shown), and a boost DC/DC converter 9 (in the figure, a boost DC/DC 9 ), the protection IC 10, the overvoltage protection IC 11, the fuel gauge IC 12, the receptacle RCP, the switches S3 to S6 configured by MOSFETs, the operational amplifier OP1, and the heater HTR. (positive electrode side and negative electrode side) heater connectors Cn are provided.
  • ground terminals GND of receptacle RCP, ground terminal GND of step-up DC/DC converter 9, power supply terminal VSS of protection IC 10, power supply terminal VSS of fuel gauge IC 12, ground terminal GND of overvoltage protection IC 11, and operational amplifier The negative power supply terminals of OP1 are each connected to the ground line.
  • the Hall IC mounting substrate 164 (area 164A) is provided with a Hall IC 14 including a Hall element that constitutes a cover position sensor.
  • a power terminal VSS of the Hall IC 14 is connected to the ground line.
  • the output terminal OUT of the Hall IC 14 is connected to the terminal P8 of the MCU1.
  • the MCU1 detects opening/closing of the slider 119 from a signal input to the terminal P8.
  • a connector electrically connected to the vibration motor M is provided on the MCU mounting board 161 .
  • the two power supply input terminals V BUS of the receptacle RCP are each connected to the input terminal IN of the overvoltage protection IC11 via a fuse Fs.
  • the USB voltage V USB is supplied to the two power input terminals V BUS of the receptacle RCP.
  • An input terminal IN of the overvoltage protection IC 11 is connected to one end of a voltage dividing circuit Pa consisting of a series circuit of two resistors.
  • the other end of the voltage dividing circuit Pa is connected to the ground line.
  • a connection point between the two resistors forming the voltage dividing circuit Pa is connected to the voltage detection terminal OVLo of the overvoltage protection IC11.
  • the overvoltage protection IC 11 outputs the voltage input to the input terminal IN from the output terminal OUT when the voltage input to the voltage detection terminal OVLo is less than the threshold.
  • the overvoltage protection IC 11 stops voltage output from the output terminal OUT (cuts off the electrical connection between the LSW3 and the receptacle RCP) when the voltage input to the voltage detection terminal OVLo exceeds the threshold (overvoltage). By doing so, the electronic components downstream of the overvoltage protection IC 11 are protected.
  • the output terminal OUT of the overvoltage protection IC11 is connected to the input terminal VIN of the LSW3 and one end of the voltage dividing circuit Pc (series circuit of two resistors) connected to the MCU1. The other end of the voltage dividing circuit Pc is connected to the ground line. A connection point of the two resistors forming the voltage dividing circuit Pc is connected to the terminal P17 of the MCU1.
  • An input terminal VIN of LSW3 is connected to one end of a voltage dividing circuit Pf consisting of a series circuit of two resistors.
  • the other end of the voltage dividing circuit Pf is connected to the ground line.
  • a connection point between the two resistors forming the voltage dividing circuit Pf is connected to the control terminal ON of the LSW3.
  • the collector terminal of the bipolar transistor S2 is connected to the control terminal ON of LSW3.
  • the emitter terminal of the bipolar transistor S2 is connected to the ground line.
  • the base terminal of bipolar transistor S2 is connected to terminal P19 of MCU1.
  • the output terminal VOUT of LSW3 is connected to the input terminal VBUS of charging IC2.
  • the MCU1 turns on the bipolar transistor S2 while the USB connection is not made.
  • the control terminal ON of LSW3 is connected to the ground line via the bipolar transistor S2, so that a low level signal is input to the control terminal ON of LSW3.
  • the bipolar transistor S2 connected to LSW3 is turned off by MCU1 when the USB connection is made.
  • the USB voltage VUSB divided by the voltage dividing circuit Pf is input to the control terminal ON of the LSW3. Therefore, when the USB connection is made and the bipolar transistor S2 is turned off, a high level signal is input to the control terminal ON of the LSW3.
  • the LSW 3 outputs the USB voltage VUSB supplied from the USB cable from the output terminal VOUT. Even if the USB connection is made while the bipolar transistor S2 is not turned off, the control terminal ON of the LSW3 is connected to the ground line via the bipolar transistor S2. Therefore, it should be noted that a low level signal continues to be input to the control terminal ON of LSW3 unless MCU1 turns off bipolar transistor S2.
  • the positive terminal of the power supply BAT is connected to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC/DC converter 9, and the charging terminal bat of the charging IC2. Therefore, the power supply voltage V BAT of the power supply BAT is supplied to the protection IC 10 , the charging IC 2 and the step-up DC/DC converter 9 .
  • a resistor Ra, a switch Sa composed of a MOSFET, a switch Sb composed of a MOSFET, and a resistor Rb are connected in series in this order to the negative terminal of the power supply BAT.
  • a current detection terminal CS of the protection IC 10 is connected to a connection point between the resistor Ra and the switch Sa. Control terminals of the switches Sa and Sb are connected to the protection IC 10 . Both ends of the resistor Rb are connected to the fuel gauge IC12.
  • the protection IC 10 acquires the value of the current flowing through the resistor Ra during charging and discharging of the power supply BAT from the voltage input to the current detection terminal CS, and when this current value becomes excessive (overcurrent), the switch Sa , the switch Sb is controlled to open and close to stop the charging or discharging of the power source BAT, thereby protecting the power source BAT. More specifically, when the protection IC 10 acquires an excessive current value while charging the power supply BAT, it stops charging the power supply BAT by turning off the switch Sb. When the protection IC 10 acquires an excessive current value during discharging of the power supply BAT, the protection IC 10 stops discharging the power supply BAT by turning off the switch Sa.
  • the protection IC 10 performs opening/closing control of the switch Sa and the switch Sb to The power supply BAT is protected by stopping the charging or discharging of BAT. More specifically, when the protection IC 10 detects that the power supply BAT is overcharged, the protection IC 10 stops charging the power supply BAT by turning off the switch Sb. When detecting overdischarge of the power supply BAT, the protection IC 10 turns off the switch Sa to stop the discharge of the power supply BAT.
  • a resistor Rt1 is connected to a connector connected to the thermistor T1 arranged near the power supply BAT.
  • a series circuit of the resistor Rt1 and the thermistor T1 is connected to the ground line and the regulator terminal TREG of the fuel gauge IC12.
  • a connection point between the thermistor T1 and the resistor Rt1 is connected to a thermistor terminal THM of the fuel gauge IC12.
  • the thermistor T1 may be a PTC (Positive Temperature Coefficient) thermistor whose resistance value increases as the temperature increases, or an NTC (Negative Temperature Coefficient) thermistor whose resistance value decreases as the temperature increases.
  • the fuel gauge IC 12 detects the current flowing through the resistor Rb, and based on the detected current value, indicates the remaining capacity of the power supply BAT, SOC (State Of Charge) indicating the state of charge, and SOH (State Of Charge) indicating the state of health. Health) and other battery information.
  • the fuel gauge IC12 supplies a voltage to the voltage dividing circuit of the thermistor T1 and the resistor Rt1 from the built-in regulator connected to the regulator terminal TREG.
  • the fuel gauge IC 12 acquires the voltage divided by this voltage dividing circuit from the thermistor terminal THM, and acquires temperature information regarding the temperature of the power supply BAT based on this voltage.
  • the fuel gauge IC12 is connected to the MCU1 via a communication line LN for serial communication, and is configured to be able to communicate with the MCU1.
  • the fuel gauge IC12 transmits the derived battery information and the acquired temperature information of the power supply BAT to the MCU1 in response to a request from the MCU1.
  • serial communication requires a plurality of signal lines such as a data line for data transmission and a clock line for synchronization. Note that only one signal line is shown in FIGS. 10-19 for simplicity.
  • the fuel gauge IC 12 has a notification terminal 12a.
  • the notification terminal 12a is connected to the terminal P6 of the MCU1 and the cathode of a diode D2, which will be described later.
  • the fuel gauge IC 12 detects an abnormality such as an excessive temperature of the power supply BAT, it notifies the MCU 1 of the occurrence of the abnormality by outputting a low-level signal from the notification terminal 12a. This low level signal is also input to the CLR ( ⁇ ) terminal of the FF 17 via the diode D2.
  • One end of the reactor Lc is connected to the switching terminal SW of the step-up DC/DC converter 9 .
  • the other end of this reactor Lc is connected to the input terminal VIN of the step-up DC/DC converter 9 .
  • the step-up DC/DC converter 9 performs on/off control of the built-in transistor connected to the switching terminal SW to step up the input voltage and output it from the output terminal VOUT.
  • the input terminal VIN of the step-up DC/DC converter 9 constitutes a power supply terminal of the step-up DC/DC converter 9 on the high potential side.
  • the boost DC/DC converter 9 performs a boost operation when the signal input to the enable terminal EN is at high level.
  • the signal input to the enable terminal EN of the boost DC/DC converter 9 may be controlled to be low level by the MCU1.
  • the MCU 1 does not control the signal input to the enable terminal EN of the boost DC/DC converter 9, so that the potential of the enable terminal EN may be made indefinite.
  • the output terminal VOUT of the step-up DC/DC converter 9 is connected to the source terminal of the switch S4 composed of a P-channel MOSFET.
  • the gate terminal of switch S4 is connected to terminal P15 of MCU1.
  • One end of the resistor Rs is connected to the drain terminal of the switch S4.
  • the other end of the resistor Rs is connected to a positive heater connector Cn connected to one end of the heater HTR.
  • a voltage dividing circuit Pb consisting of two resistors is connected to the connection point between the switch S4 and the resistor Rs.
  • a connection point of the two resistors forming the voltage dividing circuit Pb is connected to the terminal P18 of the MCU1.
  • a connection point between the switch S4 and the resistor Rs is further connected to the positive power supply terminal of the operational amplifier OP1.
  • a connection line between the output terminal VOUT of the step-up DC/DC converter 9 and the source terminal of the switch S4 is connected to the source terminal of the switch S3 composed of a P-channel MOSFET.
  • the gate terminal of switch S3 is connected to terminal P16 of MCU1.
  • a drain terminal of the switch S3 is connected to a connection line between the resistor Rs and the heater connector Cn on the positive electrode side.
  • a circuit including the switch S3 and a circuit including the switch S4 and the resistor Rs are connected in parallel between the output terminal VOUT of the boost DC/DC converter 9 and the positive electrode side of the heater connector Cn. . Since the circuit including the switch S3 does not have a resistor, it has a lower resistance than the circuit including the switch S4 and the resistor Rs.
  • the non-inverting input terminal of the operational amplifier OP1 is connected to the connection line between the resistor Rs and the heater connector Cn on the positive electrode side.
  • the inverting input terminal of the operational amplifier OP1 is connected to the negative heater connector Cn connected to the other end of the heater HTR and to the drain terminal of the switch S6 composed of an N-channel MOSFET.
  • the source terminal of switch S6 is connected to the ground line.
  • a gate terminal of the switch S6 is connected to the terminal P14 of the MCU1, the anode of the diode D4, and the enable terminal EN of the step-up DC/DC converter 9.
  • the cathode of diode D4 is connected to the Q terminal of FF17.
  • resistor R4 One end of a resistor R4 is connected to the output terminal of the operational amplifier OP1. The other end of the resistor R4 is connected to the terminal P9 of the MCU1 and the drain terminal of the switch S5 composed of an N-channel MOSFET. A source terminal of the switch S5 is connected to the ground line. A gate terminal of the switch S5 is connected to a connection line between the resistor Rs and the heater connector Cn on the positive electrode side.
  • the input terminal VBUS of charging IC2 is connected to the anode of each of LEDs L1-L8.
  • the cathodes of the LEDs L1-L8 are connected to the control terminals PD1-PD8 of the MCU1 via current limiting resistors. That is, LEDs L1 to L8 are connected in parallel to the input terminal VBUS.
  • the LEDs L1 to L8 are operable by the USB voltage V USB supplied from the USB cable connected to the receptacle RCP and the voltage supplied from the power supply BAT via the charging IC2.
  • the MCU 1 incorporates transistors (switching elements) connected to each of the control terminals PD1 to PD8 and the ground terminal GND.
  • the MCU1 turns on the transistor connected to the control terminal PD1 to energize the LED L1 to light it, and turns off the transistor connected to the control terminal PD1 to turn off the LED L1.
  • the brightness and light emission pattern of the LED L1 can be dynamically controlled.
  • LEDs L2 to L8 are similarly controlled by the MCU1.
  • the charging IC2 has a charging function of charging the power supply BAT based on the USB voltage VUSB input to the input terminal VBUS.
  • the charging IC 2 acquires the charging current and charging voltage of the power supply BAT from terminals and wiring (not shown), and based on these, performs charging control of the power supply BAT (power supply control from the charging terminal bat to the power supply BAT). Also, the charging IC 2 may acquire the temperature information of the power supply BAT transmitted from the fuel gauge IC 12 to the MCU 1 from the MCU 1 through serial communication using the communication line LN, and use it for charging control.
  • the charging IC2 further comprises a V BAT power pass function and an OTG function.
  • the V BAT power pass function is a function of outputting from the output terminal SYS a system power supply voltage Vcc0 substantially matching the power supply voltage V BAT input to the charging terminal bat.
  • the OTG function is a function for outputting from the input terminal VBUS a system power supply voltage Vcc4 obtained by boosting the power supply voltage VBAT input to the charging terminal bat.
  • ON/OFF of the OTG function of the charging IC 2 is controlled by the MCU 1 through serial communication using the communication line LN.
  • the power supply voltage V BAT input to the charging terminal bat may be directly output from the input terminal VBUS. In this case, power supply voltage VBAT and system power supply voltage Vcc4 are substantially the same.
  • the output terminal SYS of the charging IC 2 is connected to the input terminal VIN of the step-up/step-down DC/DC converter 8 .
  • One end of a reactor La is connected to the switching terminal SW of the charging IC2.
  • the other end of the reactor La is connected to the output terminal SYS of the charging IC2.
  • a charge enable terminal CE ( ⁇ ) of the charge IC2 is connected to a terminal P22 of the MCU1 via a resistor.
  • the collector terminal of the bipolar transistor S1 is connected to the charge enable terminal CE ( ⁇ ) of the charge IC2.
  • the emitter terminal of the bipolar transistor S1 is connected to the output terminal VOUT of the LSW4 which will be described later.
  • the base terminal of bipolar transistor S1 is connected to the Q terminal of FF17.
  • one end of a resistor Rc is connected to the charge enable terminal CE ( ⁇ ) of the charge IC2.
  • the other end of the resistor Rc is connected to the output terminal VOUT of LSW4.
  • a resistor is connected to the input terminal VIN and enable terminal EN of the step-up/step-down DC/DC converter 8 .
  • the signal input to the enable terminal EN of the step-up/step-down DC/DC converter 8 is at a high level. Then, the step-up/step-down DC/DC converter 8 starts step-up operation or step-down operation.
  • the step-up/step-down DC/DC converter 8 steps up or steps down the system power supply voltage Vcc0 input to the input terminal VIN by switching control of the built-in transistor connected to the reactor Lb to generate the system power supply voltage Vcc1, and the output terminal VOUT.
  • Output from The output terminal VOUT of the buck-boost DC/DC converter 8 includes the feedback terminal FB of the buck-boost DC/DC converter 8, the input terminal VIN of the LSW 4, the input terminal VIN of the switch driver 7, the power supply terminal VCC and the D terminal of the FF 16. and connected to A wiring to which system power supply voltage Vcc1 output from output terminal VOUT of step-up/step-down DC/DC converter 8 is supplied is referred to as power supply line PL1.
  • the LSW4 When the signal input to the control terminal ON becomes high level, the LSW4 outputs the system power supply voltage Vcc1 input to the input terminal VIN from the output terminal VOUT.
  • the control terminal ON of LSW4 and the power supply line PL1 are connected via a resistor. Therefore, by supplying the system power supply voltage Vcc1 to the power supply line PL1, a high level signal is input to the control terminal ON of the LSW4.
  • the voltage output from LSW4 is the same as the system power supply voltage Vcc1 if wiring resistance and the like are ignored. Described as voltage Vcc2.
  • the output terminal VOUT of the LSW4 is connected to the power supply terminal VDD of the MCU1, the input terminal VIN of the LSW5, the power supply terminal VDD of the fuel gauge IC12, the power supply terminal VCC of the ROM6, the emitter terminal of the bipolar transistor S1, and the resistor Rc. , and the power supply terminal VCC of the FF 17 .
  • a wiring to which system power supply voltage Vcc2 output from output terminal VOUT of LSW4 is supplied is referred to as power supply line PL2.
  • the LSW5 When the signal input to the control terminal ON becomes high level, the LSW5 outputs the system power supply voltage Vcc2 input to the input terminal VIN from the output terminal VOUT.
  • a control terminal ON of LSW5 is connected to terminal P23 of MCU1.
  • the voltage output from LSW5 is the same as the system power supply voltage Vcc2 if wiring resistance and the like are ignored. Described as voltage Vcc3.
  • a wiring to which system power supply voltage Vcc3 output from output terminal VOUT of LSW5 is supplied is referred to as power supply line PL3.
  • a series circuit of a thermistor T2 and a resistor Rt2 is connected to the power supply line PL3, and the resistor Rt2 is connected to the ground line.
  • the thermistor T2 and the resistor Rt2 form a voltage dividing circuit, and their connection point is connected to the terminal P21 of the MCU1.
  • the MCU1 detects the temperature variation (resistance value variation) of the thermistor T2 based on the voltage input to the terminal P21, and determines the presence or absence of the puff operation based on the amount of temperature variation.
  • a series circuit of a thermistor T3 and a resistor Rt3 is connected to the power supply line PL3, and the resistor Rt3 is connected to the ground line.
  • the thermistor T3 and the resistor Rt3 form a voltage dividing circuit, and their connection point is connected to the terminal P13 of the MCU1 and the inverting input terminal of the operational amplifier OP2.
  • the MCU1 detects the temperature of the thermistor T3 (corresponding to the temperature of the heater HTR) based on the voltage input to the terminal P13.
  • a series circuit of a thermistor T4 and a resistor Rt4 is connected to the power supply line PL3, and the resistor Rt4 is connected to the ground line.
  • the thermistor T4 and the resistor Rt4 form a voltage dividing circuit, and the connection point between them is connected to the terminal P12 of the MCU1 and the inverting input terminal of the operational amplifier OP3.
  • the MCU1 detects the temperature of the thermistor T4 (corresponding to the temperature of the case 110) based on the voltage input to the terminal P12.
  • a source terminal of a switch S7 composed of a MOSFET is connected to the power supply line PL2.
  • the gate terminal of switch S7 is connected to terminal P20 of MCU1.
  • a drain terminal of the switch S7 is connected to one of a pair of connectors to which the vibration motor M is connected. The other of the pair of connectors is connected to the ground line.
  • the MCU1 can control the opening/closing of the switch S7 by manipulating the potential of the terminal P20, and vibrate the vibration motor M in a specific pattern.
  • a dedicated driver IC may be used instead of the switch S7.
  • a positive power supply terminal of the operational amplifier OP2 and a voltage dividing circuit Pd (a series circuit of two resistors) connected to the non-inverting input terminal of the operational amplifier OP2 are connected to the power supply line PL2.
  • a connection point between the two resistors forming the voltage dividing circuit Pd is connected to the non-inverting input terminal of the operational amplifier OP2.
  • the operational amplifier OP2 outputs a signal corresponding to the temperature of the heater HTR (signal corresponding to the resistance value of the thermistor T3).
  • the thermistor T3 since the thermistor T3 has the NTC characteristic, the higher the temperature of the heater HTR (the temperature of the thermistor T3), the lower the output voltage of the operational amplifier OP2.
  • the output of the voltage dividing circuit of the thermistor T3 and the resistor Rt3 is connected to the non-inverting input terminal of the operational amplifier OP2, and the dividing circuit is connected to the inverting input terminal of the operational amplifier OP2.
  • the output of the pressure circuit Pd may be connected.
  • a positive power supply terminal of the operational amplifier OP3 and a voltage dividing circuit Pe (a series circuit of two resistors) connected to the non-inverting input terminal of the operational amplifier OP3 are connected to the power supply line PL2.
  • a connection point between the two resistors forming the voltage dividing circuit Pe is connected to the non-inverting input terminal of the operational amplifier OP3.
  • the operational amplifier OP3 outputs a signal corresponding to the temperature of the case 110 (a signal corresponding to the resistance value of the thermistor T4).
  • the thermistor T4 having the NTC characteristic is used, so the higher the temperature of the case 110, the lower the output voltage of the operational amplifier OP3.
  • the output of the voltage dividing circuit of the thermistor T4 and the resistor Rt4 is connected to the non-inverting input terminal of the operational amplifier OP3, and the dividing circuit is connected to the inverting input terminal of the operational amplifier OP3.
  • the output of the pressure circuit Pe may be connected.
  • a resistor R1 is connected to the output terminal of the operational amplifier OP2.
  • a cathode of a diode D1 is connected to the resistor R1.
  • the anode of the diode D1 is connected to the output terminal of the operational amplifier OP3, the D terminal of the FF17, and the CLR ( ⁇ ) terminal of the FF17.
  • a connection line between the resistor R1 and the diode D1 is connected to a resistor R2 connected to the power supply line PL1. Also, the CLR ( ⁇ ) terminal of the FF 16 is connected to this connection line.
  • resistor R3 One end of a resistor R3 is connected to the connection line between the anode of the diode D1 and the output terminal of the operational amplifier OP3 and the D terminal of the FF17.
  • the other end of resistor R3 is connected to power supply line PL2.
  • the anode of the diode D2 connected to the notification terminal 12a of the fuel gauge IC12, the anode of the diode D3, and the CLR ( ⁇ ) terminal of the FF 17 are connected to this connection line.
  • the cathode of diode D3 is connected to terminal P5 of MCU1.
  • the FF16 When the temperature of the heater HTR becomes excessive and the signal output from the operational amplifier OP2 becomes low and the signal input to the CLR ( ⁇ ) terminal becomes low level, the FF16 outputs a high level signal from the Q ( ⁇ ) terminal. Input to terminal P11 of MCU1. A high-level system power supply voltage Vcc1 is supplied from the power supply line PL1 to the D terminal of the FF16. Therefore, in the FF 16, a low level signal continues to be output from the Q ( ⁇ ) terminal unless the signal input to the CLR ( ⁇ ) terminal operating in negative logic becomes low level.
  • the signal input to the CLR ( ⁇ ) terminal of the FF 17 is when the temperature of the heater HTR becomes excessive, when the temperature of the case 110 becomes excessive, and when an abnormality is detected from the notification terminal 12a of the fuel gauge IC 12.
  • the low-level signal shown When the low-level signal shown is output, it becomes low-level.
  • the FF 17 outputs a low level signal from the Q terminal when the signal input to the CLR ( ⁇ ) terminal becomes low level.
  • This low-level signal is input to terminal P10 of MCU1, the gate terminal of switch S6, the enable terminal EN of boost DC/DC converter 9, and the base terminal of bipolar transistor S1 connected to charging IC2. be.
  • the CE ( ⁇ ) terminal of the charging IC2 is of negative logic, the charging of the power source BAT is stopped. As a result, the heating of the heater HTR and the charging of the power supply BAT are stopped. Even if the MCU1 attempts to output a low-level enable signal from the terminal P22 to the charge enable terminal CE ( ⁇ ) of the charging IC2, when the bipolar transistor S1 is turned on, the amplified current is transferred from the collector terminal to the MCU1 and the charge enable terminal CE ( ⁇ ) of the charge IC2. Note that a high level signal is input to the charge enable terminal CE ( ⁇ ) of the charge IC2.
  • a high-level system power supply voltage Vcc2 is supplied from the power supply line PL2 to the D terminal of the FF17. Therefore, the FF 17 continues to output a high level signal from the Q terminal unless the signal input to the CLR ( ⁇ ) terminal operating in negative logic becomes low level.
  • a low level signal is output from the output terminal of the operational amplifier OP3
  • a low level signal is input to the CLR ( ⁇ ) terminal of the FF17 regardless of the level of the signal output from the output terminal of the operational amplifier OP2.
  • the low level signal output from the output terminal of the operational amplifier OP3 is not affected by the high level signal due to the diode D1. sea bream.
  • the high level signal is passed through the diode D1. signal.
  • the power line PL2 is further branched from the MCU mounting board 161 toward the LED mounting board 163 and the Hall IC mounting board 164 side.
  • the power terminal VDD of the hall IC 13, the power terminal VCC of the communication IC 15, and the power terminal VDD of the hall IC 14 are connected to the branched power line PL2.
  • the output terminal OUT of the Hall IC 13 is connected to the terminal P3 of the MCU1 and the terminal SW2 of the switch driver 7. When the outer panel 115 is removed, a low level signal is output from the output terminal OUT of the Hall IC 13 .
  • the MCU 1 determines whether or not the outer panel 115 is attached based on the signal input to the terminal P3.
  • a series circuit (a series circuit of a resistor and a capacitor) connected to the operation switch OPS is provided on the LED mounting board 163 .
  • This series circuit is connected to power supply line PL2.
  • a connection point between the resistor and the capacitor in this series circuit is connected to the terminal P4 of the MCU 1, the operation switch OPS, and the terminal SW1 of the switch driver 7.
  • FIG. When the operation switch OPS is not pressed, the operation switch OPS is not conductive, and the signals input to the terminal P4 of the MCU1 and the terminal SW1 of the switch driver 7 are at a high level due to the system power supply voltage Vcc2.
  • the operation switch OPS When the operation switch OPS is pressed and turned on, the signals input to the terminal P4 of the MCU 1 and the terminal SW1 of the switch driver 7 are connected to the ground line, and thus become low level.
  • the MCU1 detects the operation of the operation switch OPS from the signal input to the terminal P4.
  • the switch driver 7 is provided with a reset input terminal RSTB.
  • the reset input terminal RSTB is connected to the control terminal ON of LSW4.
  • the switch driver 7 By outputting a low level signal from the reset input terminal RSTB, the output operation of LSW4 is stopped.
  • the operation switch OPS which is originally pushed down via the pressing portion 117 of the outer panel 115, is directly pushed down by the user with the outer panel 115 removed, the signal is input to the terminals SW1 and SW2 of the switch driver 7. become low level.
  • FIG. 13 is a diagram for explaining the operation of the electric circuit in sleep mode.
  • FIG. 14 is a diagram for explaining the operation of the electric circuit in active mode.
  • FIG. 15 is a diagram for explaining the operation of the electric circuit in the heating initial setting mode.
  • FIG. 16 is a diagram for explaining the operation of the electric circuit during heating of the heater HTR in the heating mode.
  • FIG. 17 is a diagram for explaining the operation of the electric circuit when the temperature of the heater HTR is detected in the heating mode.
  • FIG. 18 is a diagram for explaining the operation of the electric circuit in charging mode.
  • FIG. 13 is a diagram for explaining the operation of the electric circuit in sleep mode.
  • FIG. 14 is a diagram for explaining the operation of the electric circuit in active mode.
  • FIG. 15 is a diagram for explaining the operation of the electric circuit in the heating initial setting mode.
  • FIG. 16 is a diagram for explaining the operation of the electric circuit during heating of the heater HTR in the heating mode.
  • FIG. 17 is a diagram for explaining the operation
  • FIGS. 13 to 19 are diagrams for explaining the operation of the electric circuit when the MCU 1 is reset (restarted).
  • the terminals surrounded by dashed ellipses have inputs or outputs such as the power supply voltage V BAT , the USB voltage V USB , and the system power supply voltage. It shows the terminals that have been made.
  • the power supply voltage V BAT is input to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC/DC converter 9, and the charging terminal bat of the charging IC 2.
  • FIG. 1 the power supply voltage V BAT is input to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC/DC converter 9, and the charging terminal bat of the charging IC 2.
  • MCU1 enables the V BAT power pass function of charging IC2 and disables the OTG function and charging function. Since the USB voltage VUSB is not input to the input terminal VBUS of the charging IC2, the VBAT power pass function of the charging IC2 is enabled. Since the signal for enabling the OTG function is not output from the MCU1 to the charging IC2 from the communication line LN, the OTG function is disabled. Therefore, the charging IC2 generates the system power supply voltage Vcc0 from the power supply voltage VBAT input to the charging terminal bat, and outputs it from the output terminal SYS.
  • the system power supply voltage Vcc0 output from the output terminal SYS is input to the input terminal VIN and enable terminal EN of the step-up/step-down DC/DC converter 8 .
  • the buck-boost DC/DC converter 8 is enabled by inputting a high-level system power supply voltage Vcc0 to an enable terminal EN of positive logic, generates a system power supply voltage Vcc1 from the system power supply voltage Vcc0, and outputs it to an output terminal VOUT.
  • Output from The system power supply voltage Vcc1 output from the output terminal VOUT of the buck-boost DC/DC converter 8 is applied to the input terminal VIN of the LSW4, the control terminal ON of the LSW4, the input terminal VIN of the switch driver 7, the power supply terminal VCC of the FF16, and the D terminal and , respectively.
  • the LSW4 When the system power supply voltage Vcc1 is input to the control terminal ON, the LSW4 outputs the system power supply voltage Vcc1 input to the input terminal VIN as the system power supply voltage Vcc2 from the output terminal VOUT.
  • the system power supply voltage Vcc2 output from the LSW4 is applied to the power supply terminal VDD of the MCU1, the input terminal VIN of the LSW5, the power supply terminal VDD of the Hall IC 13, the power supply terminal VCC of the communication IC 15, and the power supply terminal VDD of the Hall IC 14. is entered.
  • the system power supply voltage Vcc2 is the power supply terminal VDD of the fuel gauge IC12, the power supply terminal VCC of the ROM 6, the resistor Rc and the bipolar transistor S1 connected to the charge enable terminal CE ( ⁇ ) of the charging IC2, and the FF17. They are supplied to the power supply terminal VCC, the positive power supply terminal of the operational amplifier OP3, the voltage dividing circuit Pe, the positive power supply terminal of the operational amplifier OP2, and the voltage dividing circuit Pd.
  • the bipolar transistor S1 connected to the charging IC2 is off unless a low level signal is output from the Q terminal of the FF17. Therefore, the system power supply voltage Vcc2 generated by the LSW4 is also input to the charging enable terminal CE ( ⁇ ) of the charging IC2. Since the charge enable terminal CE ( ⁇ ) of the charge IC2 is of negative logic, the charge function of the charge IC2 is turned off in this state.
  • LSW 5 stops outputting system power supply voltage Vcc3, so power supply to electronic components connected to power supply line PL3 is stopped. Also, in the sleep mode, the OTG function of the charging IC 2 is stopped, so power supply to the LEDs L1 to L8 is stopped.
  • Fig. 14> When the MCU 1 detects that the signal input to the terminal P8 becomes high level from the sleep mode state of FIG. 13 and the slider 119 is opened, it inputs a high level signal from the terminal P23 to the control terminal ON of the LSW5. . As a result, the LSW 5 outputs the system power supply voltage Vcc2 input to the input terminal VIN from the output terminal VOUT as the system power supply voltage Vcc3. The system power supply voltage Vcc3 output from the output terminal VOUT of the LSW5 is supplied to the thermistor T2, the thermistor T3, and the thermistor T4.
  • the MCU1 detects that the slider 119 is opened, the MCU1 enables the OTG function of the charging IC2 via the communication line LN.
  • the charging IC2 outputs from the input terminal VBUS a system power supply voltage Vcc4 obtained by boosting the power supply voltage VBAT input from the charging terminal bat.
  • the system power supply voltage Vcc4 output from the input terminal VBUS is It is fed to the LEDs L1-L8.
  • Fig. 15> From the state of FIG. 14, when the signal input to the terminal P4 becomes low level (the operation switch OPS is pressed), the MCU1 performs various settings necessary for heating, and then boosts the voltage from the terminal P14. A high-level enable signal is input to the enable terminal EN of the DC/DC converter 9 . As a result, the step-up DC/DC converter 9 outputs the driving voltage V bst obtained by stepping up the power supply voltage V BAT from the output terminal VOUT. The drive voltage Vbst is supplied to switch S3 and switch S4. In this state, the switches S3 and S4 are off. Also, the switch S6 is turned on by the high-level enable signal output from the terminal P14.
  • the negative terminal of the heater HTR is connected to the ground line, and the heater HTR can be heated by turning on the switch S3.
  • the mode shifts to the heating mode.
  • Fig. 16> In the state of FIG. 15, the MCU1 starts switching control of the switch S3 connected to the terminal P16 and switching control of the switch S4 connected to the terminal P15. These switching controls may be automatically started when the heating initial setting mode described above is completed, or may be started by further pressing the operation switch OPS. Specifically, as shown in FIG. 16, the MCU 1 turns on the switch S3 and turns off the switch S4 to supply the driving voltage Vbst to the heater HTR to heat the heater HTR for generating aerosol. and temperature detection control for detecting the temperature of the heater HTR by turning off the switch S3 and turning on the switch S4 as shown in FIG.
  • the driving voltage Vbst is also supplied to the gate of the switch S5 to turn on the switch S5. Further, during heating control, the drive voltage Vbst that has passed through the switch S3 is also input to the positive power supply terminal of the operational amplifier OP1 via the resistor Rs.
  • the resistance value of the resistor Rs is negligibly small compared to the internal resistance value of the operational amplifier OP1. Therefore, during heating control, the voltage input to the positive power supply terminal of the operational amplifier OP1 is approximately equal to the driving voltage Vbst .
  • the resistance value of the resistor R4 is greater than the ON resistance value of the switch S5.
  • the switch S5 is turned on during heating control.
  • the output voltage of the operational amplifier OP1 is divided by the voltage dividing circuit of the resistor R4 and the switch S5 and input to the terminal P9 of the MCU1. Since the resistance value of the resistor R4 is higher than the ON resistance value of the switch S5, the voltage input to the terminal P9 of the MCU1 is sufficiently reduced. This can prevent a large voltage from being input from the operational amplifier OP1 to the MCU1.
  • Fig. 17> As shown in FIG. 17, during temperature detection control, the driving voltage Vbst is input to the positive power supply terminal of the operational amplifier OP1 and also to the voltage dividing circuit Pb. The voltage divided by the voltage dividing circuit Pb is input to the terminal P18 of the MCU1. Based on the voltage input to the terminal P18, the MCU1 acquires the reference voltage V temp applied to the series circuit of the resistor Rs and the heater HTR during temperature detection control.
  • the driving voltage V bst (reference voltage V temp ) is supplied to the series circuit of the resistor Rs and the heater HTR.
  • a voltage V heat obtained by dividing the driving voltage V bst (reference voltage V temp ) by the resistor Rs and the heater HTR is input to the non-inverting input terminal of the operational amplifier OP1. Since the resistance value of the resistor Rs is sufficiently higher than the resistance value of the heater HTR, the voltage V heat is sufficiently lower than the driving voltage V bst .
  • the switch S5 is turned off by supplying the low voltage V heat to the gate terminal of the switch S5.
  • the operational amplifier OP1 amplifies and outputs the difference between the voltage input to the inverting input terminal and the voltage V heat input to the non-inverting input terminal.
  • the output signal of operational amplifier OP1 is input to terminal P9 of MCU1.
  • the MCU1 obtains the temperature of the heater HTR based on the signal input to the terminal P9, the reference voltage V temp obtained based on the input voltage of the terminal P18, and the known electrical resistance value of the resistor Rs. . Based on the acquired temperature of the heater HTR, the MCU 1 performs heating control of the heater HTR (for example, control so that the temperature of the heater HTR becomes a target temperature).
  • the MCU 1 can obtain the temperature of the heater HTR even during periods when the switches S3 and S4 are turned off (periods when the heater HTR is not energized). Specifically, the MCU1 obtains the temperature of the heater HTR based on the voltage input to the terminal P13 (the output voltage of the voltage dividing circuit composed of the thermistor T3 and the resistor Rt3).
  • the MCU 1 can acquire the temperature of the case 110 at any timing. Specifically, the MCU1 obtains the temperature of the case 110 based on the voltage input to the terminal P12 (the output voltage of the voltage dividing circuit composed of the thermistor T4 and the resistor Rt4).
  • FIG. 18 exemplifies a case where a USB connection is made in sleep mode.
  • the USB voltage VUSB is input to the input terminal VIN of LSW3 via the overvoltage protection IC11.
  • the USB voltage V USB is also supplied to a voltage dividing circuit Pf connected to the input terminal VIN of LSW3. Since the bipolar transistor S2 is ON immediately after the USB connection is made, the signal input to the control terminal ON of the LSW3 remains at a low level.
  • the USB voltage V USB is also supplied to the voltage dividing circuit Pc connected to the terminal P17 of the MCU1, and the voltage divided by this voltage dividing circuit Pc is input to the terminal P17.
  • the MCU1 detects that the USB connection has been made based on the voltage input to the terminal P17.
  • the MCU1 When the MCU1 detects that the USB connection has been made, the MCU1 turns off the bipolar transistor S2 connected to the terminal P19.
  • the USB voltage VUSB divided by the voltage dividing circuit Pf is input to the control terminal ON of the LSW3.
  • a high-level signal is input to the control terminal ON of LSW3, and LSW3 outputs the USB voltage VUSB from the output terminal VOUT.
  • the USB voltage VUSB output from LSW3 is input to the input terminal VBUS of charging IC2.
  • the USB voltage V_USB output from LSW3 is directly supplied to LEDs L1 to L8 as system power supply voltage Vcc4.
  • the MCU1 When the MCU1 detects that the USB connection has been established, the MCU1 further outputs a low-level enable signal from the terminal P22 to the charge enable terminal CE( ⁇ ) of the charge IC2. As a result, the charging IC 2 enables the charging function of the power supply BAT, and starts charging the power supply BAT with the USB voltage VUSB input to the input terminal VBUS.
  • the MCU1 When the USB connection is made in the active mode, when the MCU1 detects that the USB connection is made, it turns off the bipolar transistor S2 connected to the terminal P19. A low-level enable signal is output to the charge enable terminal CE ( ⁇ ) of , and the OTG function of the charge IC 2 is turned off by serial communication using the communication line LN. As a result, the system power supply voltage Vcc4 supplied to the LEDs L1 to L8 is switched from the voltage generated by the OTG function of the charging IC 2 (voltage based on the power supply voltage VBAT) to the USB voltage VUSB output from the LSW3. . The LEDs L1 to L8 do not operate unless the MCU1 turns on the built-in transistors. This prevents an unstable voltage from being supplied to the LEDs L1-L8 during the on-to-off transition of the OTG function.
  • the supply state of the system power supply voltage in the charge mode is the same as in the sleep mode. However, it is preferable that the supply state of the system power supply voltage in the charge mode be the same as in the active mode shown in FIG. That is, in the charging mode, it is preferable that the system power supply voltage Vcc3 is supplied to the thermistors T2 to T4 for temperature control, which will be described later.
  • the switch driver 7 outputs a low-level signal from the reset input terminal RSTB when it reaches a predetermined time, or when the signal input to either the terminal SW1 or the terminal SW2 becomes high level, the reset input terminal RSTB is output. return the signal output from to high level. As a result, the control terminal ON of LSW4 becomes high level, and the state in which the system power supply voltage Vcc2 is supplied to each part is restored.
  • the thermistor T1 described above is also referred to as the power supply thermistor T1
  • the thermistor T2 described above is referred to as the puff thermistor T2
  • the thermistor T3 described above is also referred to as the heater thermistor T3.
  • the thermistor T4 that has been formed is also described as a case thermistor T4.
  • FIG. 20 is a schematic diagram for explaining the suction operation detection process by the MCU 1 using the puff thermistor T2.
  • the MCU 1 includes an operational amplifier 1A, an analog-to-digital converter (ADC) 1B, a filter circuit 1C, a delay circuit 1D, a subtractor 1E, and a comparator 1F. ing.
  • ADC analog-to-digital converter
  • a non-inverting input terminal of the operational amplifier 1A is connected to the terminal P21.
  • a reference voltage V Ref is input to the inverting input terminal of the operational amplifier 1A.
  • the reference voltage V Ref may be generated from the system power supply voltage Vcc2 input to the power supply terminal VDD of the MCU1.
  • the puff thermistor T2 is assumed to have NTC characteristics in the example of FIG. A signal obtained by dividing the system power supply voltage Vcc3 by the puff thermistor T2 and the resistor Rt2 is input to the terminal P21. Therefore, the higher the temperature of the puff thermistor T2, the larger the value of the signal input to the terminal P21.
  • the operational amplifier 1A amplifies and outputs the voltage applied to the puff thermistor T2.
  • ADC 1B converts the output signal of operational amplifier 1A into a digital value.
  • the filter circuit 1C performs filtering such as a high-pass filter, a low-pass filter, and a band-pass filter on the digital signal output from the ADC 1B.
  • the digital signal filtered by the filter circuit 1C is input to the + side of the subtractor 1E. This digital signal is delayed by the delay circuit 1D and input to the minus side of the subtractor 1E. Therefore, from the subtractor 1E, a digital signal corresponding to the temperature of the puff thermistor T2 obtained at an arbitrary time t(n) and a digital signal obtained at time t(n-1), which is the delay time before time t(n).
  • a difference value from the digital signal corresponding to the temperature of the puff thermistor T2 is output.
  • the output value of the subtractor 1E becomes a negative value and the output of the comparator 1F becomes low level.
  • the output value of the subtractor 1E becomes a positive value and the output of the comparator 1F becomes high level.
  • the MCU 1 When shifting from the initial heating setting mode to the heating mode, the MCU 1 starts preheating the heater HTR. As shown in FIGS. 6 and 7, the puff thermistor T2 is arranged near the heating section 170. As shown in FIG. Therefore, when the temperature of the heater HTR rises due to this preheating, the temperature of the puff thermistor T2 also rises accordingly. When the user inhales in this state, the temperature of the puff thermistor T2 is slightly lowered due to the gas flow inside the case 110 . That is, when the suction is performed during preheating of the heater HTR, the output of the subtractor 1E becomes a negative value, and a low level signal is output from the comparator 1F. The MCU 1 determines that a suction operation has been performed when a low level signal is output from the comparator 1F.
  • the temperature of the power supply BAT (hereinafter referred to as power supply temperature TBAT) can be obtained from the resistance value (output value) of the power supply thermistor T1
  • the temperature of the heater HTR can be obtained from the resistance value (output value) of the heater thermistor T3.
  • a temperature (hereinafter referred to as heater temperature THTR ) can be obtained
  • a temperature of the case 110 (hereinafter referred to as case temperature T CASE ) can be obtained from the resistance value (output value) of the case thermistor T4.
  • the aspirator 100 when at least one of the power supply temperature T BAT , the heater temperature T HTR , and the case temperature T CASE becomes far from the value under the recommended environment in which the aspirator 100 is used, the aspirator 100 , and protection control to prohibit charging of the power source BAT and discharging from the power source BAT to the heater HTR (hereinafter also referred to as charging and discharging) to enhance safety.
  • This protection control is performed by MCU1 and FF17.
  • Protection control that prohibits charging/discharging refers to controlling an electronic component so that charging/discharging is disabled.
  • a low level signal is input to the enable terminal EN of the boost DC/DC converter 9 (or the potential of the enable terminal EN is made unfixed) to start the boost operation.
  • a low level signal is input to the gate terminal of the switch S6 (or the potential of the gate terminal is made unfixed) to cut off the connection between the heater connector Cn(-) on the negative electrode side and the ground.
  • the operation mode is further restricted when protection control is performed.
  • the operation mode is limited when protection control is performed.
  • the operation mode since the operation mode is managed by the MCU1, the operation mode need not be restricted when the MCU1 is not operating for some reason.
  • the protection control performed in the aspirator 100 includes manual return protection control that can be terminated by resetting the MCU 1 by user operation, and automatic recovery control that does not require resetting the MCU 1 and can be automatically terminated by improving the temperature environment. automatic revertive protection control and non-terminating non-revertive protection control.
  • the operating modes of the suction device 100 include an error mode and a permanent error mode in addition to those described with reference to FIG. In this specification, when we refer to "all operating modes of the aspirator", we mean all operating modes (all operating modes shown in FIG. 9) except for these error modes and permanent error modes.
  • the aspirator 100 shifts to error mode and cannot shift to other operation modes.
  • the state of the power supply voltage supply state of the system power supply voltage
  • the functions that can be executed in the previous operation mode for example, acquisition of temperature information, etc.
  • the functions that can be executed in the previous operation mode for example, acquisition of temperature information, etc.
  • the operation mode can be changed by user operation or the like.
  • the aspirator 100 shifts to permanent error mode.
  • permanent error mode all functions of the aspirator 100 are disabled and the aspirator 100 must be repaired or scrapped.
  • the MCU 1 outputs a low level signal from the terminal P14 to stop the boosting operation of the boost DC/DC converter 9 and cut off the connection between the heater connector Cn(-) on the negative electrode side and the ground. Protection control is performed by outputting a level signal and stopping the charging operation of the charging IC2. When only charging is prohibited, there is no need to output a low level signal from the terminal P14, and when only discharging is prohibited, there is no need to output a high level signal from the terminal P22.
  • the FF 17 outputs a low level signal from the Q terminal to stop the boost operation of the boost DC/DC converter 9, cut off the connection between the heater connector Cn (-) on the negative electrode side and the ground, and turn on the bipolar transistor S1. By stopping the charging operation of the charging IC 2 , protection control is performed without going through the MCU 1 .
  • the FF 17 outputs a low level signal from the Q terminal when the signal input to the CLR ( ⁇ ) terminal switches from high level to low level. This low level signal is also input to the P10 terminal of MCU1. While the low level signal is input to the terminal P10, the MCU1 does not switch the signal input to the CLK terminal (not shown) of the FF17 from low level to high level. In other words, the CLK signal of FF17 does not rise while the low level signal is being input to the terminal P10. Further, when the MCU 1 is frozen, for example, the signal input to the CLK terminal (not shown) of the FF 17 remains at low level.
  • the MCU1 regardless of whether the MCU1 is in a normal operating state or a frozen state, after a low level signal is output from the Q terminal of FF17, it is input to the CLR ( ⁇ ) terminal of FF17. A low level signal continues to be output from the Q terminal of FF 17 even if the signal on the output switches from low level to high level.
  • the FF17 is restarted (the system power supply voltage Vcc2 is turned on again). Since the reset MCU1 operates in the sleep mode, the system power supply voltage Vcc3 is not applied to the heater thermistor T3 and the case thermistor T4, and the outputs of the operational amplifiers OP2 and OP3 both become high level.
  • a high level signal is input to the D terminal and the CLR ( ⁇ ) terminal of the FF17.
  • the MCU1 causes the CLK signal of FF17 to rise.
  • the output of the Q terminal of FF17 can be returned to high level.
  • the output of the Q terminal of FF17 returns to high level, thereby ending the protection control by FF17.
  • the signal output from the Q terminal of FF17 is also input to terminal P10 of MCU1. Therefore, the MCU1 can detect that the FF17 has performed the protection control from the low-level signal input to the terminal P10.
  • the MCU1 preferably causes the notification unit 180 to notify the reset request of the MCU1 and shifts to the error mode.
  • thresholds for temperature determination are set as follows. Numerical values and magnitude relationships in parentheses for each temperature threshold indicate preferred examples, and are not limited to these. The following description assumes that each temperature threshold is a value in parentheses.
  • Temperature threshold THH0 (340°C) Temperature threshold THH1 (85°C) Temperature threshold THH2 (65°C) Temperature threshold THH3 (60°C) Temperature threshold THH4 (55°C) Temperature threshold THH5 (51°C) Temperature threshold THH6 (48°C) Temperature threshold THH7 (47°C) Temperature threshold THH8 (45°C) Temperature threshold THL1 (0°C) Temperature threshold THL2 (-5°C)
  • FIG. 21 is a circuit diagram of a main part of the electrical circuit shown in FIG. 10, showing the main electronic components related to the thermistors T1 to T4.
  • FIG. 22 is a diagram showing an extracted portion of range AR surrounded by broken lines in FIG.
  • FIG. 22 shows LSW5 for generating system power supply voltage Vcc3 as an electronic component not shown in FIG.
  • FIG. 21 shows, as electronic components and nodes not shown in FIG. , and node Nb are shown.
  • the capacitor Cu, the capacitor Ct3, the resistor Rh, the capacitor Ct4, the capacitor Ch, and the capacitor Ct2 are provided for the purpose of reducing noise (smoothing the signal).
  • the notification terminal 12a of the fuel gauge IC 12, which is a single terminal in FIG. 10, is divided into a first notification terminal 12aa and a second notification terminal 12ab in FIG.
  • the node Nu connects the output terminal VOUT of the LSW 5 and the positive side of the connector Cn(t2) to which the puff thermistor T2 is connected.
  • One end of the capacitor Cu is connected to the connection line between the node Nu and the output terminal VOUT of the LSW5.
  • the other end of the capacitor Cu is connected to the ground.
  • the capacitance of the capacitor Cu is 1 ⁇ F.
  • the positive side of a connector Cn(t4) to which the case thermistor T4 is connected and the positive side of a connector Cn(t3) to which the heater thermistor T3 is connected are connected to the node Nu.
  • the node Nt2 connects the negative electrode side of the connector Cn(t2) and one end of the resistor Rt2. The other end of resistor Rt2 is connected to ground.
  • One end of the capacitor Ct2 is connected to the connection line between the node Nt2 and the negative electrode side of the connector Cn(t2). The other end of the capacitor Ct2 is connected to the ground.
  • the capacitance of the capacitor Ct2 is 0.01 ⁇ F.
  • Node Nt2 is connected to terminal P21 of MCU1.
  • the node Nt4 connects the negative electrode side of the connector Cn(t4) and one end of the resistor Rt4. The other end of resistor Rt4 is connected to ground.
  • One end of the capacitor Ct4 is connected to the connection line between the node Nt4 and the negative electrode side of the connector Cn(t4). The other end of the capacitor Ct4 is connected to the ground.
  • the capacitance of the capacitor Ct4 is 0.1 ⁇ F.
  • Node Nt4 is connected to terminal P12 of MCU1.
  • the connection line between the node Nt4 and the terminal P12 of the MCU1 is connected to the inverting input terminal of the operational amplifier OP3.
  • the node Nt3 connects the negative electrode side of the connector Cn(t3) and one end of the resistor Rt3.
  • the other end of resistor Rt3 is connected to ground.
  • One end of the capacitor Ct3 is connected to the connection line between the node Nt3 and the negative electrode side of the connector Cn(t3).
  • the other end of the capacitor Ct3 is connected to the ground.
  • the capacitance of the capacitor Ct3 is 0.1 ⁇ F.
  • One end of a resistor Rh is connected to the node Nt3.
  • the other end of resistor Rh is connected to terminal P13 of MCU1.
  • One end of the capacitor Ch is connected to the connection line between the other end of the resistor Rh and the terminal P13 of the MCU1.
  • the other end of capacitor Ch is connected to the ground.
  • the capacitance of the capacitor Ch is 0.01 ⁇ F.
  • a resistor Rh and a capacitor Ch constitute a filter circuit RC1 by a primary RC series circuit.
  • the node Nb connects one end of the resistor Rh and the node Nt3.
  • An inverting input terminal of the operational amplifier OP2 is connected to the node Nb.
  • the capacity of the capacitor Cu is larger than the capacity of each of the capacitors Ct3, Ct4, and Ct2. As shown in FIG. It is provided on the upstream side (high potential side) of the three voltage dividing circuits, that is, the voltage dividing circuit of the case thermistor T4 and the resistor Rt4 and the voltage dividing circuit of the heater thermistor T3 and the resistor Rt3.
  • the presence of the large-capacity capacitor Cu at this position makes it difficult for unstable power to be supplied to each voltage dividing circuit. can be done.
  • the large-capacity capacitor Cu exists on the upstream side, the capacities of the capacitors Ct2, Ct3, and Ct4 provided on the downstream side can be reduced.
  • the area of the circuit board can be effectively used, and the cost and size of the suction device 100 can be reduced.
  • the capacitor Cu it is also possible to obtain the effect of smoothing the transient voltage that may occur when the LSW 5 is intermittently turned ON/OFF according to the opening/closing of the slider 119, the reset of the MCU 1, or the like.
  • the capacitance of the capacitor Ct2 is smaller than the capacitance of each of the capacitors Ct3 and Ct4. Filter processing is performed only on the , as described with reference to FIG. 20 . Also, the MCU 1 detects a suction operation based on a change in the signal input to the terminal P21. Therefore, it is not preferable that the signal input to the terminal P21 is largely smoothed before it is input. By reducing the capacitance of the capacitor Ct2, it is possible to moderately remove noise from the output of the puff thermistor T2 while making it less likely to affect the result of filtering. As a result, suction detection can be performed with high accuracy.
  • Capacitance of Capacitor Ch is Smaller than Capacitance of Capacitor Ct3
  • the RC filter circuit RC1 plays an auxiliary role of the capacitor Ct3, but by using a capacitor having a smaller capacity than the capacitor Ct3 for such an auxiliary RC filter circuit RC1, the heater by the RC filter circuit RC1 A delay in the output signal of the thermistor T3 can be suppressed.
  • the MCU 1 can acquire the heater temperature THTR at high speed and with low noise.
  • the output signal of the heater thermistor T3 is also input to the operational amplifier OP2, and the input terminal of the operational amplifier OP2 is connected between the node Nt3 and the RC filter circuit RC1. Therefore, the output signal of the heater thermistor T3 input to the operational amplifier OP2 is prevented from being delayed by the RC filter circuit RC1.
  • the first notification terminal 12aa of the fuel gauge IC12 is connected to the cathode of the diode D2.
  • a second notification terminal 12ab of the fuel gauge IC12 is connected to a terminal P6 of the MCU1.
  • the fuel gauge IC 12 obtains the power supply temperature T BAT at regular timing (for example, every second) and stores it in an internal register.
  • the fuel gauge IC12 can mutually communicate with the MCU1 through the communication line LN in operation modes other than the sleep mode in which the MCU1 attempts to save power.
  • the fuel gauge IC12 receives a transmission request for the power supply temperature T BAT from the MCU1 via the communication line LN, it transmits the power supply temperature T BAT to the MCU1 in response to the transmission request.
  • the fuel gauge IC 12 operates when the power supply temperature T BAT satisfies the high temperature condition (the condition that the temperature threshold THH1 (85° C.) or higher continues multiple times) (the output value of the power supply thermistor T1 is abnormal). ), the high temperature notification signal SIG2a is output from the second notification terminal 12ab.
  • the high temperature notification signal SIG2a can also be said to be an interrupt signal for the MCU1.
  • the fuel gauge IC 12 operates when the power supply temperature T BAT satisfies the low temperature condition (the temperature threshold THL2 ( ⁇ 5° C.) or less) (when the output value of the power supply thermistor T1 is abnormal). ), the low temperature notification signal SIG2b is output from the second notification terminal 12ab. In all operation modes, the fuel gauge IC 12 operates when the power supply temperature T BAT satisfies the low temperature release condition (the temperature threshold THL1 (0° C.) or higher) (when the output value of the power supply thermistor T1 is normal). ), the low temperature release notification signal SIG2c is output from the second notification terminal 12ab. In FIG.
  • the high temperature notification signal SIG2a, the low temperature notification signal SIG2b, and the low temperature cancellation notification signal SIG2c are collectively referred to as a notification signal SIG2.
  • the low temperature notification signal SIG2b and the low temperature release notification signal SIG2c are output without waiting for a request from the MCU1 through the communication line LN.
  • the low temperature notification signal SIG2b and the low temperature release notification signal SIG2c can also be said to be interrupt signals for the MCU1.
  • the MCU 1 operating in the sleep mode has functions such as operation detection of the operation switch OPS, detection of the opening of the slider 119, detection of attachment/detachment of the outer panel 115, detection of USB connection, and detection of notification from the fuel gauge IC 12. , and execution of protection control based on notification from the fuel gauge IC 12, etc., thereby saving energy.
  • the MCU 1 operating in sleep mode is activated (all functions are enabled) when the slider 119 is opened, and the operation mode of the aspirator 100 is shifted to the active mode.
  • the MCU 1 is also activated when the high temperature notification signal SIG2a is received from the fuel gauge IC 12 at the terminal P6 (when the output value of the power supply thermistor T1 is abnormal). Change the operation mode to active mode.
  • the MCU1 executes automatic recovery protection control, The operation mode of the aspirator 100 is shifted to the error mode. After executing this automatic return protection control, when the MCU 1 receives the low temperature release notification signal SIG2c at the terminal P6 (when the output value of the power supply thermistor T1 is normal), the MCU 1 ends the automatic return protection control, Return to sleep mode.
  • the fuel gauge IC12 turns to low level.
  • a high temperature notification signal SIG1 is output from the first notification terminal 12aa.
  • the CLR ( ⁇ ) terminal of the FF 17 becomes low level. That is, the output of the Q terminal of FF17 becomes low level, and the manual return protection control is executed. Protection control based on the high temperature notification signal SIG1 can be executed in all operation modes.
  • the voltage dividing circuit Pd connected to the non-inverting input terminal of the operational amplifier OP2 A resistance value is determined so that the output of the operational amplifier OP2 becomes low level. It is in the heating mode that the temperature of the heater thermistor T3 reaches a high temperature close to the temperature threshold THH0 (340° C.). Therefore, in the heating mode, when a low level signal is output from the operational amplifier OP2, the CLR ( ⁇ ) terminal of the FF17 becomes low level. That is, the output of the Q terminal of FF17 becomes low level, and the manual return protection control is executed. Protection control based on the output of the operational amplifier OP2 can be executed in an operation mode in which power is supplied to the heater thermistor T3 (in other words, an operation mode other than the sleep mode).
  • the voltage dividing circuit Pe connected to the non-inverting input terminal of the operational amplifier OP3 A resistance value is determined so that the output of the operational amplifier OP3 becomes low level.
  • the CLR ( ⁇ ) terminal of the FF17 becomes low level. That is, the output of the Q terminal of FF17 becomes low level, and the manual return protection control is executed. Protection control based on the output of the operational amplifier OP3 can be executed in an operation mode in which power is supplied to the case thermistor T4 (in other words, an operation mode other than the sleep mode).
  • the FF 17 can execute protection control without involving the MCU 1, even if the MCU 1 is in sleep mode to save power or the MCU 1 is not operating normally for some reason, Also, charging and discharging can be prohibited based on any one of the power supply temperature T BAT , the heater temperature T HTR , and the case temperature T CASE . Thereby, the safety of the suction device 100 can be improved.
  • the power supply voltage (system power supply voltage Vcc3) is not supplied to the thermistors T2 to T4. Therefore, the FF 17 cannot prohibit charging/discharging based on either the heater temperature T HTR or the case temperature T CASE .
  • the power supply thermistor T1 is supplied with the power supply voltage in all operation modes. Therefore, protection control can be executed by the FF 17 in all operation modes.
  • FIG. 23 is a diagram summarizing specific examples of protection control patterns performed in the suction device 100 .
  • FIG. 23 also shows the relationship between the temperature in the figure and the temperature threshold.
  • patterns PT1 to PT4 exist in the protection control performed based only on the power supply temperature TBAT .
  • a pattern PT5 exists in the protection control performed based only on the heater temperature THTR .
  • Pattern PT6 and pattern PT7 exist in protection control performed based only on the case temperature T CASE .
  • a pattern PT8 exists in the protection control performed based on the power supply temperature T BAT and the case temperature T CASE . Each pattern will be described below.
  • the MCU 1 executes protection control, and the type of protection control is automatic return protection control.
  • the MCU 1 can execute automatic return protection control in the transition period from the sleep mode to the active mode (the period until the activation process for enabling all functions is completed) and in the heating initial setting mode.
  • the MCU 1 periodically requests the fuel gauge IC 12 to acquire the power supply temperature TBAT via the communication line LN in each of the transition period and the heating initial setting mode.
  • the power supply temperature TBAT transmitted from the fuel gauge IC 12 in response to this acquisition request becomes equal to or higher than the temperature threshold THH5 (51° C.) on the high temperature side, the MCU 1 determines that the output value of the power supply thermistor T1 is abnormal.
  • the MCU1 changes the output value of the power supply thermistor T1. It judges that it is normal, terminates the automatic return protection control, and shifts to sleep mode.
  • the MCU 1 executes protection control, and the type of protection control is manual return protection control.
  • the MCU 1 can execute manual return protection control in each of the heating mode and charging mode.
  • the MCU 1 periodically requests the fuel gauge IC 12 to acquire the power supply temperature TBAT via the communication line LN.
  • the MCU 1 operating in the heating mode detects that the output value of the power supply thermistor T1 is abnormal. Then, manual return protection control is performed.
  • the MCU 1 operating in the charge mode detects the power supply temperature T BAT sent from the fuel gauge IC 12 .
  • THL1 the temperature threshold
  • FF17 that executes protection control, and the type of protection control is manual return protection control. FF17 can execute manual return protection control in all operation modes.
  • SIG1 signal indicating that the power supply temperature T BAT has reached or exceeded the temperature threshold THH3 (60° C.)
  • THH3 60° C.
  • manual return protection control is performed.
  • the MCU 1 executes protection control, and the type of protection control is automatic return protection control.
  • the MCU 1 can perform automatic return protection control in all operating modes.
  • the MCU1 determines that the output value of the power supply thermistor T1 is abnormal, and executes automatic protection control.
  • the MCU 1 receives the low temperature release notification signal SIG2c at the terminal P6, it determines that the output value of the power supply thermistor T1 is normal, and terminates the automatic protection control.
  • the FF 17 executes protection control, and the type of protection control is manual return protection control.
  • the FF 17 can execute manual return protection control in operation modes other than the sleep mode.
  • the FF17 receives a low level signal from the operational amplifier OP2 at the CLR ( ⁇ ) terminal (when the output value of the heater thermistor T3 is abnormal), it performs manual return protection control.
  • the possibility that the temperature of the heater thermistor T3 approaches the temperature threshold THH0 (340° C.) is extremely low. Therefore, in FIG. 23, only the heating mode is shown as the operation mode in which this manual return protection control is performed.
  • the MCU 1 executes protection control, and the type of protection control is automatic return protection control.
  • the MCU 1 can perform automatic recovery protection control in the active mode and heating initialization mode.
  • the case temperature T CASE based on the signal input to the terminal P12 (the signal corresponding to the resistance value of the case thermistor T4) is equal to or higher than the temperature threshold THH6 (48° C.)
  • the MCU 1 operating in these operation modes It judges that the output value of case thermistor T4 is abnormal, and executes automatic recovery protection control.
  • the MCU1 controls the output value of the case thermistor T4 when the case temperature T CASE based on the signal input to the terminal P12 becomes equal to or lower than the temperature threshold THH7 (47° C.) which is less than the temperature threshold THH6. is normal, and the automatic return protection control is terminated.
  • protection control is disabled in the charging mode and heating mode, but protection control may be enabled in one of them.
  • the FF 17 executes protection control, and the type of protection control is manual return protection control.
  • the FF 17 can execute manual return protection control in operation modes other than the sleep mode. In these operation modes, when the FF17 receives a low-level signal (signal indicating that the case temperature TCASE is equal to or higher than the temperature threshold THH3 (60°C)) from the operational amplifier OP3 at the CLR ( ⁇ ) terminal (case thermistor T4 output is abnormal), perform manual recovery protection control.
  • the MCU 1 executes protection control, and the type of protection control is non-recovery protection control.
  • the non-recovery protection control can be executed in the sleep mode when the fuel gauge IC 12 outputs the high temperature notification signal SIG2a.
  • the MCU1 operating in the sleep mode receives the high temperature notification signal SIG2a, it shifts to the active mode and performs a primary check to determine whether the output values of the power supply thermistor T1 and the case thermistor T4 are abnormal. Run.
  • the MCU1 receives the signal input to the terminal P12.
  • the case temperature T CASE based on (signal corresponding to the resistance value of the case thermistor T4) is equal to or higher than the temperature threshold THH2 (65°C)
  • the output values of the power supply thermistor T1 and the case thermistor T4 are determined to be abnormal. to execute non-revertive protection control.
  • protection control of pattern PT8 is non-recovery protection control, it may be replaced with manual recovery protection control.
  • a situation in which the output values of the power supply thermistor T1 and the case thermistor T4 are abnormal is a situation in which it is assumed that the suction device 100 is highly abnormal. In such a situation, the safety of the aspirator 100 can be improved by preventing the automatic termination of the protection control by the non-reset protection control or the manual return protection control.
  • FIG. 24 is a flowchart for explaining an example of the operation of the fuel gauge IC12 and the MCU1 when the high temperature notification signal SIG2a is output from the fuel gauge IC12 in the sleep mode.
  • the fuel gauge IC 12 acquires the power supply temperature T BAT at intervals of, for example, one second and stores it in the built-in register (step S1). In parallel with the processing of step S1, the fuel gauge IC 12 performs an abnormality determination of the power supply temperature TBAT , for example, at intervals of one minute. Specifically, the fuel gauge IC 12 determines whether or not one minute has passed since the last abnormality determination was made (step S2). If the determination in step S2 is yes, the fuel gauge IC 12 determines whether or not the latest power supply temperature TBAT stored in the built-in register is equal to or higher than the temperature threshold THH1 (85° C.) (step S3). If the determination in step S3 is no, the fuel gauge IC 12 resets the value n of the built-in counter to the initial value of 0 (step S4), and returns the process to step S2.
  • step S3 If the determination in step S3 is yes, the remaining amount gauge IC 12 increases the value n of the built-in counter by one (step S5). After that, if the numerical value n is less than 2 (step S6: no), the fuel gauge IC 12 returns the process to step S2, and if the numerical value n is 2 or more (step S6: yes), the high temperature notification signal SIG2a is output. It is transmitted to MCU1 (step S7).
  • the MCU 1 operating in the sleep mode Upon receiving the high temperature notification signal SIG2a transmitted in step S7 (step S11), the MCU 1 operating in the sleep mode resets the value m of the built-in counter to the initial value of 0 (step S12), and changes the operation mode. The mode is changed to active mode (step S13). After that, the MCU 1 starts abnormality determination of the power supply temperature T BAT and the case temperature T CASE .
  • step S14 when one second has passed (step S14: yes), the MCU 1 requests the fuel gauge IC 12 to transmit the power supply temperature T BAT via the communication line LN (step S15).
  • step S8 When the fuel gauge IC 12 receives this request (step S8), it acquires the power supply temperature T BAT and transmits it to the MCU 1 via the communication line LN (step S9).
  • step S9 The MCU 1 receives and acquires the power supply temperature T BAT transmitted from the fuel gauge IC 12 in step S9 (step S16).
  • the MCU 1 performs the process of step S17 in parallel with the processes of steps S15 and S16.
  • the MCU1 acquires the case temperature T CASE based on the signal input to the terminal P12.
  • the MCU 1 confirms that the power supply temperature T BAT acquired in step S16 is equal to or higher than the temperature threshold THH1 (85° C.), and that the case temperature T CASE acquired in step S17 is the temperature threshold THH2 ( 65° C.) or higher (step S18).
  • protection control is executed in multiple patterns such as In this way, protection control can be executed appropriately according to the temperature measurement object and the situation, so the safety of the suction device 100 can be improved.
  • the protection control of the pattern PT8 is triggered by the high temperature notification signal SIG2a output from the fuel gauge IC12.
  • the protection control of the pattern PT8 may be executed without being triggered by the high temperature notification signal SIG2a.
  • the MCU 1 is set to a state where the power supply temperature T BAT is on the high temperature side.
  • Non-recovery protection control may be executed when the temperature threshold THH1 (85° C.) or higher and the case temperature T CASE is higher than the temperature threshold THH2 (65° C.).
  • Such protection control of pattern PT8 is realized by omitting steps S2 to S7 and steps S11 to S13 in the flowchart shown in FIG.
  • FIG. 25 and 26 are cross-sectional views of the suction device 100 shown in FIG. 1 taken through the case thermistor T4.
  • FIG. 25 is a cross-sectional view taken along a cutting plane perpendicular to the front-rear direction.
  • FIG. 26 is a cross-sectional view taken along a cutting plane perpendicular to the vertical direction.
  • a heating unit 170 including a heater HTR, a power supply BAT, and a case thermistor T4 are fixed to the chassis 150 inside the case 110 .
  • the heating unit 170 and the power supply BAT are arranged side by side in the front-rear direction, and the case thermistor T4 is fixed to the chassis 150 so as to be positioned between the heating unit 170 and the power supply BAT in the front-rear direction.
  • the chassis 150 includes a portion Pb located between the power supply BAT and the case thermistor T4, and a portion Pa located between the heating section 170 and the case thermistor T4.
  • the case thermistor T4 is fixed in position by the chassis 150 used to fix other electronic components. Therefore, the case thermistor T4 can accurately obtain the temperature of the case 110 while avoiding an increase in the manufacturing cost of the suction device 100 . Further, as shown in FIG. 26, since the case thermistor T4 is not positioned toward the end in the front-rear direction, the heat of the user's hand when holding the case 110 is less likely to affect the case thermistor T4. Further, the existence of the portion Pa and the portion Pb makes it difficult for the heat generated by the power source BAT and the heater HTR to be transmitted to the case thermistor T4. Therefore, the environment in which the suction device 100 is placed can be more accurately grasped from the output value of the case thermistor T4.
  • the existence of the other of the portions Pa and Pb can provide an effect that the heat generated by the power source BAT or the heater HTR is less likely to be transmitted to the case thermistor T4. can do.
  • a power supply power supply BAT
  • a heater connector to which a heater (heater HTR) that consumes power supplied from the power source and heats the aerosol source is connected
  • a controller MCU1
  • an operational amplifier operational amplifier OP2, operational amplifier OP3
  • a division including thermistors (heater thermistor T3, case thermistor T4), fixed resistors (resistor Rt3, resistor Rt4), and nodes (node Nt3, node Nt4) connecting the thermistors and the fixed resistors in series.
  • the controller starts supplying power (system power supply voltage Vcc3) to the voltage dividing circuit while power (system power supply voltage Vcc2) is being supplied to the positive power supply terminal, configured to control power supply from the power supply to the heater based on a signal output from the output terminal;
  • the power supply unit (inhaler 100) of the aerosol generator is the power supply unit (inhaler 100) of the aerosol generator.
  • a voltage corresponding to the value of the thermistor can be applied to the input terminal of the operational amplifier while the power supply voltage of the operational amplifier is stable. Therefore, the output of the operational amplifier is stabilized, and the accuracy of control executed by the aerosol generator can be improved.
  • the terminal connected to the voltage dividing circuit between the non-inverting input terminal and the inverting input terminal is fixed to the ground potential. Therefore, the output of the operational amplifier does not become unstable, and the accuracy of the control executed by the aerosol generator can be improved.
  • the power supply unit of the aerosol generator supplies a predetermined voltage (system power supply voltage Vcc2) to the other of the non-inverting input terminal and the inverting input terminal before starting to supply power (system power supply voltage Vcc3) to the voltage dividing circuit.
  • a predetermined voltage system power supply voltage Vcc2
  • Vcc3 system power supply voltage
  • the potential of the one of the two input terminals that is not connected to the thermistor is fixed in advance. Control accuracy can be improved.
  • the power supply unit of the aerosol generator The controller simultaneously supplies power (system power supply voltage Vcc2) to the positive power supply terminal and supplies the predetermined voltage (system power supply voltage Vcc2) to the other of the non-inverting input terminal and the inverting input terminal. configured to run Power supply unit for the aerosol generator.
  • the cost of the aerosol generator can be reduced because the circuit can be simplified compared to the case where the positive power supply terminal and the other input terminal are powered on at different timings.
  • a power supply unit for an aerosol generator according to any one of (1) to (4), Equipped with a sensor (operation switch OPS) capable of outputting an aerosol generation request
  • the controller includes an MCU (MCU1) configured to initiate power supply from the power supply to the heater based on the output of the sensor;
  • the MCU is configured to be operable in sleep mode, the positive power terminal is powered while the MCU is operating in the sleep mode; the voltage divider circuit is unpowered while the MCU is operating in the sleep mode; Power supply unit for the aerosol generator.
  • the power supply unit of the aerosol generator The MCU is configured to be operable in a heating mode in which power is supplied from the power supply to the heater, and a pre-heating mode (active mode) through which transition from the sleep mode to the heating mode is required. , the voltage divider circuit is powered while the MCU is operating in the pre-heating mode or when the MCU transitions from the sleep mode to the pre-heating mode; Power supply unit for the aerosol generator.
  • the power supply unit of the aerosol generator a first operation unit (slider 119) that needs to be operated to transition the operation mode of the MCU from the sleep mode to the pre-heating mode; a second operation unit (operation switch OPS) that requires an operation to transition the operation mode of the MCU from the pre-heating mode to the heating mode and is separate from the first operation unit.
  • a first operation unit sliding 119
  • a second operation unit operation switch OPS
  • a power supply unit for an aerosol generator according to any one of (1) to (6), Equipped with an operation unit (slider 119) that can be operated by the user,
  • the controller is configured to start supplying power to the voltage dividing circuit, triggered by a user's operation on the operation unit.
  • Power supply unit for the aerosol generator is configured to start supplying power to the voltage dividing circuit, triggered by a user's operation on the operation unit.
  • the operation unit since the operation unit must be operated before the power supply to the voltage dividing circuit is turned on, it is possible to secure time for obtaining a stable output signal from the operational amplifier. Therefore, the output of the operational amplifier is stabilized, and the accuracy of control executed by the aerosol generator can be improved.
  • a power supply power supply BAT
  • a heater connector to which a heater (heater HTR) that consumes power supplied from the power source and heats the aerosol source is connected
  • an MCU MCU1
  • an operational amplifier operational amplifier OP2, operational amplifier OP3
  • Voltage division including thermistors (heater thermistor T3, case thermistor T4), fixed resistors (resistor Rt3, resistor Rt4), and nodes (node Nt3, node Nt4) connecting the thermistors and the fixed resistors in series a circuit; the node is connected to one of the non-inverting input terminal and the inverting input terminal; the positive power terminal is powered while the MCU is operating

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un dispositif de génération d'aérosol dans lequel la précision de commande a été améliorée.　Un appareil d'aspiration (100) comprend : un connecteur de chauffage Cn auquel un dispositif de chauffage HTR, qui consomme de l'énergie fournie par une batterie BAT et chauffe une tige (500), est relié ; un amplificateur opérationnel OP2 ; et un circuit de division de tension qui comprend une thermistance T3, une résistance Rt3 et un nœud Nt3 reliant la thermistance T3 et la résistance Rt3 en série, le nœud Nt3 étant connecté à une borne d'entrée non inverseuse de l'amplificateur opérationnel OP2, l'alimentation d'une tension de source d'alimentation de système Vcc3 au circuit de division de tension étant initiée tandis qu'une tension de source d'alimentation de système Vcc2 est fournie à une borne d'alimentation positive de l'amplificateur opérationnel OP2, et l'alimentation en énergie de l'élément chauffant HTR à partir de la batterie BAT est commandée sur la base d'un signal émis à partir d'une borne de sortie de l'amplificateur opérationnel OP2.
PCT/JP2022/007926 2021-05-10 2022-02-25 Unité d'alimentation électrique pour dispositif de génération d'aérosol WO2022239373A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138682A (ja) * 1986-11-29 1988-06-10 松下電器産業株式会社 電気調理器
JP2020150929A (ja) * 2019-03-21 2020-09-24 アコースティック アーク インターナショナル リミテッド 煙草を加熱するための装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138682A (ja) * 1986-11-29 1988-06-10 松下電器産業株式会社 電気調理器
JP2020150929A (ja) * 2019-03-21 2020-09-24 アコースティック アーク インターナショナル リミテッド 煙草を加熱するための装置

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