CN203720777U - Outage starting circuit of equipment provided with battery - Google Patents
Outage starting circuit of equipment provided with battery Download PDFInfo
- Publication number
- CN203720777U CN203720777U CN201320851042.7U CN201320851042U CN203720777U CN 203720777 U CN203720777 U CN 203720777U CN 201320851042 U CN201320851042 U CN 201320851042U CN 203720777 U CN203720777 U CN 203720777U
- Authority
- CN
- China
- Prior art keywords
- mcu
- circuit
- keyswitch
- triode
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 206010044565 Tremor Diseases 0.000 claims description 16
- 238000001514 detection method Methods 0.000 abstract description 4
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 14
- 239000003990 capacitor Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Abstract
The utility model discloses an outage starting circuit of equipment provided with a battery. The circuit comprises a transistor Q2, a PMOS (P-channel Metal Oxide Semiconductor) tube Q3, a divider resistor R1, a divider resistor R2, a divider resistor R3, a current-limiting resistor R4, a pull-up resistor R5 and a key switch, wherein one end of the key switch is connected with a battery power source, one end of the R5 and the source of the Q3; the grid of the Q3 is connected with the other end of the R5 and the collector of the Q2; the drain of the Q3 is a system power source output end; the base of the Q2 is connected with one end of the R4; the emitter of the Q2 is grounded; the other end of the R4 and one end of the R1 are connected with the other end of the key switch; the other end of the R1 is connected with an I/O (Input/Output) port; one end of the R3 is connected with the other end of the key switch; the other end of the R3 and one end of the R2 are connected with an MCU (Microprogrammed Control Unit) detection pin of the equipment; the other end of the R2 is grounded. According to the outage starting circuit of the equipment provided with the battery, the equipment is started under a complete outage mode by the key switch, the system power consumption of the equipment provided with the battery is reduced, and the service life is prolonged.
Description
Technical field
The utility model relates to device start field, particularly a kind of power-off start-up circuit of charged pool equipment.
Background technology
Charged pool equipment is in the market entering low-power consumption mode or in the situation that button shuts down; conventionally power-off does not wake up and makes a response to external world to support completely; the Micro-processor MCV of device systems can be operated under park mode, the serviceable life that the incomplete power-off of this equipment and the state starting under incomplete powering-off state can cause system power dissipation to increase and can reduce equipment conventionally.
Utility model content
The utility model provides a kind of power-off start-up circuit of charged pool equipment, the problem that the system power dissipation bringing with the incomplete power-off of solution equipment and startup thereof increases and reduce serviceable life.
According to an aspect of the present utility model, a kind of power-off start-up circuit of charged pool equipment is provided, this circuit comprises: triode Q2 and PMOS pipe Q3, divider resistance R1, R2 and R3, current-limiting resistance R4, pull-up resistor R5 and keyswitch.The source electrode of one end of one end of keyswitch and the battery supply of charged battery apparatus, pull-up resistor R5 and PMOS pipe Q3 links together;
The collector of the PMOS pipe grid of Q3 and the other end of pull-up resistor R5 and triode Q2 is connected respectively;
The drain electrode of PMOS pipe Q3 is as the system power supply power output end of charged pool equipment;
The base stage of triode Q2 is connected with one end of current-limiting resistance R4;
The grounded emitter of triode Q2;
The other end of current-limiting resistance R4 is connected respectively with one end of divider resistance R1 and the other end of keyswitch;
The I/O mouth of the other end of divider resistance R1 and charged pool equipment is connected;
One end of divider resistance R3 is connected with the other end of keyswitch;
One end of the other end of divider resistance R3 and divider resistance R2 is connected with the MCU with ADC function of charged pool equipment detecting pin;
The other end ground connection of divider resistance R2.
In an embodiment of the present utility model, the resistance of divider resistance R2 and R3 is selected to meet equation V1=R2*v2/ (R2+R3), and wherein, V1 is the voltage of Micro-processor MCV detecting pin, the voltage that V2 is battery supply.
In an embodiment of the present utility model, triode Q2 is NPN type triode.
In an embodiment of the present utility model, this circuit also comprises with first of keyswitch parallel connection and disappears and tremble electric capacity and/or one end and be connected second of MCU detecting pin, other end ground connection and disappear and tremble electric capacity.
In an embodiment of the present utility model, charged pool equipment also comprises operational module, and MCU also comprises detecting module, and detecting module detecting operational module has or not operation in Preset Time, and will detect result feedback to I/O mouth.
In an embodiment of the present utility model, operational module comprises that operational module comprises touch-screen and/or function button.
The power-off start-up circuit of this charged pool equipment of the present utility model, only just can realize the complete power-off of equipment by keyswitch, and can, the in the situation that of the complete power-off of equipment, start by keyswitch opertaing device.And, the utility model can also be by presetting a period of time, in Preset Time section, the operational module of the detecting module detection equipment of MCU has or not operation behavior and will detect result feedback to I/O mouth, when in Preset Time section, while operation, the level of adjusting equipment I/O, makes equipment enter complete off-position, extends the flying power of system battery power supply.Thus, the technical program can reduce system power dissipation, the serviceable life of protection equipment extension device.
Brief description of the drawings
Fig. 1 is the power-off start-up circuit figure of a kind of charged pool equipment of providing of embodiment of the utility model;
Fig. 2 is the power-off start-up circuit figure of a kind of charged pool equipment of providing of another embodiment of the utility model;
Fig. 3 is the power-off start-up circuit figure of a kind of charged pool equipment of providing of another embodiment of the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Core concept of the present utility model is, when keyswitch is pressed after shutdown, to be controlled and made the complete power-off of equipment by MCU.Or the in the situation that of the complete power-off of equipment, coordinate MCU opertaing device to start by keyswitch, reduce the power consumption of system, the serviceable life of extension device.
Specific embodiment one
Fig. 1 is the power-off start-up circuit figure of a kind of charged pool equipment of providing of embodiment of the utility model.Referring to Fig. 1, this circuit comprises: triode Q2 and PMOS pipe Q3, divider resistance R1, R2 and R3, current-limiting resistance R4, pull-up resistor R5 and keyswitch S1.The source electrode of one end of one end of keyswitch S1 and the battery supply of charged battery apparatus, pull-up resistor R5 and PMOS pipe Q3 links together.
The collector of the PMOS pipe grid of Q3 and the other end of pull-up resistor R5 and triode Q2 is connected respectively; The drain electrode of PMOS pipe Q3 is as the system power supply power output end of charged pool equipment, and this power supply output terminal generally connects power management chip, and when system power supply power output end has electric current output, power management chip can power on for MCU.
The base stage of triode Q2 is connected with one end of current-limiting resistance R4;
The grounded emitter of triode Q2;
The other end of current-limiting resistance R4 is connected respectively with one end of divider resistance R1 and the other end of keyswitch;
The I/O mouth of the other end of divider resistance R1 and charged pool equipment is connected;
One end of divider resistance R3 is connected with the other end of keyswitch S1;
One end of the other end of divider resistance R3 and divider resistance R2 is connected with the MCU with ADC function of charged pool equipment detecting pin;
The other end ground connection of divider resistance R2.
In an embodiment of the present utility model, the resistance of divider resistance R2 and R3 is selected to meet equation V1=R2*V2/ (R2+R3), and wherein, V1 is the voltage of Micro-processor MCV detecting pin, the voltage that V2 is battery supply.
In an embodiment of the present utility model, triode Q2 is NPN type triode, and model is 2N3904G.
Be appreciated that in other embodiment of the present utility model, should select according to concrete circuit the model of triode Q2, be not limited to the triode of the 2N3904G model that embodiment of the utility model provides.
In an embodiment of the present utility model, the model of PMOS pipe Q3 is BSS84LT1G.Be appreciated that in other embodiment of the present utility model, should select according to concrete circuit the model of PMOS pipe Q3, be not limited to the PMOS pipe of the BSS84LT1G model that embodiment of the utility model provides.
Referring to Fig. 1, in an embodiment of the present utility model, according to system power supply need to convert the required supply voltage V3 of MCU to through power supply, Q3 is P channel junction field-effect pipe, PMOS manages.S1 is keyswitch.
The concrete course of work of power-off start-up circuit of this charged pool equipment of the utility model is: in the time that equipment is only put into battery and do not started shooting, because the MCU of system is in electroless state, the MCU detecting voltage of pin and the equal stateless of the supply voltage of MCU, the base stage of triode Q2 is by resistance R 4, R3 and R2 ground connection, and triode Q2 ends.Triode Q2 cut-off causes PMOS pipe Q3 cut-off, and Q3 cut-off causes the output terminal of system power supply power supply there is no electric current, and now system is in complete off-position.
Referring to Fig. 1, in the time that needs are started shooting, the switch S 1 that pushes button, the base stage of Q2 is high level, in the time that the base voltage of Q2 is greater than the forward voltage of Q2, Q2 conducting.Q2 conducting causes Q3 conducting, the output terminal of system power supply power supply powers on to system MCU, the voltage status of very first time detecting MCU detecting pin after MCU works on power, in the time that the voltage of MCU detecting pin meets V1=R2*V2/ (R2+R3), the level of I/O mouth is drawn high, now unclamped keyswitch S1.After S1 disconnects, because I/O mouth is high level, therefore the base stage of Q2 is still high level, Q2 or conducting, Q2 conducting causes Q3 conducting, and now the output terminal of system power supply power supply continues there is electricity.The voltage of MCU detecting pin becomes V1=R2*V3/ (R2+R3+R1), wherein, and the supply voltage that V3 is MCU.
Referring to Fig. 1, in the time that needs shut down, the switch S 1 that again pushes button, the voltage that detects MCU detecting pin as MCU is when V1=R2*V3/ (R2+R3+R1) becomes V1=R2*V2/ (R2+R3), the level of I/O mouth is dragged down, become low level.In the time again unclamping keyswitch S1, the base stage of Q2 is passed through resistance R 4, R3 and R2 ground connection, now Q2 cut-off.Q2 cut-off causes the cut-off of Q3, and therefore the output terminal of system power supply power supply is without electricity, and system returns to again the state of complete power-off.
The power-off start-up circuit of this charged pool equipment that the utility model provides only just can be realized the complete power-off of equipment by keyswitch, and can, the in the situation that of the complete power-off of equipment, make device start by keyswitch.Reduce system power dissipation, extension device serviceable life.
Specific embodiment two
Fig. 2 is the power-off start-up circuit figure of a kind of charged pool equipment of providing of another embodiment of the utility model, and referring to Fig. 2, this circuit comprises: triode Q2 and PMOS pipe Q3, divider resistance R1, R2 and R3, current-limiting resistance R4, pull-up resistor R5 and keyswitch.The source electrode of one end of one end of keyswitch S1 and the battery supply of charged battery apparatus, pull-up resistor R5 and PMOS pipe Q3 links together;
The collector of the PMOS pipe grid of Q3 and the other end of pull-up resistor R5 and triode Q2 is connected respectively;
The drain electrode of PMOS pipe Q3 is as the system power supply power output end of charged pool equipment; This power supply output terminal connects power management chip, and when system power supply power output end has electric current output, power management chip can power on for MCU;
The base stage of triode Q2 is connected with one end of current-limiting resistance R4;
The grounded emitter of triode Q2;
One end of the other end of current-limiting resistance R4 and divider resistance R1 and the other end of keyswitch S1 are connected respectively;
The I/O mouth of the other end of divider resistance R1 and charged pool equipment is connected;
One end of divider resistance R3 is connected with the other end of keyswitch S1.
One end of the other end of divider resistance R3 and divider resistance R2 is connected with the MCU with ADC function of charged pool equipment detecting pin;
The other end ground connection of divider resistance R2.
In an embodiment of the present utility model, the resistance of divider resistance R2 and R3 is selected to meet equation V1=R2*V2/ (R2+R3), and wherein, V1 is the voltage of Micro-processor MCV detecting pin, the voltage that V2 is battery supply.
While disconnecting with closure due to mechanical switch, may have the shake of moment.In the present embodiment, utilize the discharge lag of electric capacity and filter action to realize hardware for jitters elimination, overcome the adverse effect that keyswitch mechanical shaking brings.This circuit also comprises with first of keyswitch S1 parallel connection and disappears and tremble capacitor C 1 and one end and be connected second of MCU detecting pin, other end ground connection and disappear and tremble capacitor C 2.First disappears trembles capacitor C 1 and can make the change in voltage of switch ends more level and smooth; Simultaneously because MCU detecting pin is for detection of change in voltage, second disappears trembles capacitor C 2 and can eliminate the interference on detecting circuit, improves detecting accuracy.In other embodiment of the present utility model, also can set up in parallel with keyswitch S1 first and disappear and tremble capacitor C 1, also can set up one end and connect second of MCU detecting pin, other end ground connection and disappear and tremble capacitor C 2.
In the present embodiment, the concrete course of work of power-off start-up circuit of this charged pool equipment is: in the time that equipment is only put into battery and do not started shooting, because the MCU of system is in electroless state, the MCU detecting voltage of pin and the equal stateless of the supply voltage of MCU, the base stage of triode Q2 is by resistance R 4, R3 and R2 ground connection, and triode Q2 ends.Triode Q2 cut-off causes PMOS pipe Q3 cut-off, and Q3 cut-off causes the output terminal of system power supply power supply there is no electric current, and now system is in complete off-position.
Referring to Fig. 2, in the time that needs are started shooting, the switch S 1 that pushes button, the base stage of Q2 becomes high level, in the time that Q2 base voltage is greater than the forward voltage of Q2, Q2 conducting.Q2 conducting causes Q3 conducting, the output terminal of system power supply power supply powers on to system MCU, the voltage status of very first time detecting MCU detecting pin after MCU works on power, in the time that the voltage of MCU detecting pin meets V1=R2*V2/ (R2+R3), the level of I/O mouth is drawn high, now unclamped keyswitch S1.After S1 disconnects, because I/O mouth is high level, therefore the base stage of Q2 is still high level, Q2 or conducting, Q2 conducting causes Q3 conducting, and now the output terminal of system power supply power supply continues there is electricity, and the voltage of MCU detecting pin becomes V1=R2*V3/ (R2+R3+R1).Wherein, the supply voltage that V3 is MCU.
Referring to Fig. 2, in the time that needs shut down, the switch S 1 that again pushes button, the voltage that detects MCU detecting pin as MCU is when V1=R2*V3/ (R2+R3+R1) becomes V1=R2*V2/ (R2+R3), the level of I/O mouth is dragged down, become low level.In the time again unclamping keyswitch S1, the base stage of Q2 is passed through resistance R 4, R3 and R2 ground connection, now Q2 cut-off.Q2 cut-off causes the cut-off of Q3, and therefore the output terminal of system power supply power supply is without electricity, and system returns to again the state of complete power-off.
Specific embodiment three
Fig. 3 is the power-off start-up circuit figure of a kind of charged pool equipment of providing of another embodiment of the utility model.Referring to Fig. 3, in another embodiment of the present utility model, described charged pool equipment also comprises operational module, such as touch-screen, function button etc., MCU also comprises detecting module, and detecting module is used for detecting operational module and has or not operation in Preset Time section, and will detect result feedback to I/O mouth.In Fig. 3, do not draw the operational module of charged pool equipment, but drawn the detecting module of MCU.Referring to Fig. 3, this power-off start-up circuit for charged pool equipment of the present utility model comprises: triode Q2 and PMOS pipe Q3, divider resistance R1, R2 and R3, current-limiting resistance R4, pull-up resistor R5 and keyswitch.
The source electrode of one end of one end of keyswitch S1 and the battery supply of charged battery apparatus, pull-up resistor R5 and PMOS pipe Q3 links together;
The collector of the PMOS pipe grid of Q3 and the other end of pull-up resistor R5 and triode Q2 is connected respectively;
The drain electrode of PMOS pipe Q3 is as the system power supply power output end of charged pool equipment; This power supply output terminal connects power management chip, and when system power supply power output end has electric current output, power management chip is that MCU powers on;
The base stage of triode Q2 is connected with one end of current-limiting resistance R4;
The grounded emitter of triode Q2;
One end of the other end of current-limiting resistance R4 and divider resistance R1 and the other end of keyswitch S1 are connected respectively;
The I/O mouth of the other end of divider resistance R1 and charged pool equipment is connected;
One end of divider resistance R3 is connected with the other end of keyswitch S1.
One end of the other end of divider resistance R3 and divider resistance R2 is connected with the MCU with ADC function of charged pool equipment detecting pin;
The other end ground connection of divider resistance R2.
In an embodiment of the present utility model, the resistance of divider resistance R2 and R3 is selected to meet equation V1=R2*V2/ (R2+R3), and wherein, V1 is the voltage of Micro-processor MCV detecting pin, the voltage that V2 is battery supply.
While disconnecting with closure due to mechanical switch, may have the shake of moment.In the present embodiment, utilize the discharge lag of electric capacity and filter action to realize hardware for jitters elimination, overcome the adverse effect that keyswitch mechanical shaking brings.This circuit also comprises with first of keyswitch S1 parallel connection and disappears and tremble capacitor C 1 and one end and be connected second of MCU detecting pin, other end ground connection and disappear and tremble capacitor C 2.First disappears trembles capacitor C 1 and can make the change in voltage of switch ends more level and smooth; Simultaneously because MCU detecting pin is for detection of change in voltage, second disappears trembles capacitor C 2 and can eliminate the interference on detecting circuit, improves detecting accuracy.In other embodiment of the present utility model, also can set up in parallel with keyswitch S1 first and disappear and tremble capacitor C 1, also can set up one end and connect second of MCU detecting pin, other end ground connection and disappear and tremble capacitor C 2.
Referring to Fig. 3, in another embodiment of the present utility model, this charged pool equipment also comprises operational module, and the MCU of equipment also comprises detecting module, detecting module detecting operational module has or not operation in Preset Time section, and will detect the I/O mouth of result feedback to equipment.
The specific works process of this circuit is: in the time that needs are started shooting, and the switch S 1 that pushes button, the base stage of triode Q2 becomes high level, in the time that the base voltage of Q2 is greater than the forward voltage of Q2, triode Q2 conducting.Q2 conducting causes Q3 conducting, the output terminal of system power supply power supply is powered on to system MCU, the voltage status of very first time detecting MCU detecting pin after MCU works on power, in the time that the voltage of MCU detecting pin meets V1=R2*V2/ (R2+R3), the level of I/O mouth is drawn high, now unclamped keyswitch S1.After S1 disconnects, because I/O mouth is high level, therefore the base stage of triode Q2 is still high level, Q2 or conducting, Q2 conducting causes Q3 conducting, and now the output terminal of system power supply power supply continues there is electricity, and the voltage of MCU detecting pin becomes V1=R2*V3/ (R2+R3+R1).Wherein, the supply voltage that V3 is MCU.
In the time that needs shut down, the switch S 1 that again pushes button, the voltage that detects MCU detecting pin as MCU when V1=R2*V3/ (R2+R3+R1) becomes V1=R2*V2/ (R2+R3), drags down the level of I/O mouth, becomes low level.In the time again unclamping keyswitch S1, the base stage of triode Q2 is passed through resistance R 4, R3 and R2 ground connection, now Q2 cut-off.Q2 cut-off causes the cut-off of Q3, and therefore the output terminal of system power supply power supply is without electricity, and system returns to again the state of complete power-off.
The circuit of the present embodiment, owing to being provided with detecting module, therefore can be realized charged pool equipment automatic power-off shutdown function without operation in Preset Time section.Referring to Fig. 3, the I/O mouth of equipment and the detecting module of MCU are connected, and the power management chip of MCU and equipment is connected.By the detecting module of charged pool equipment MCU, go the operational module of detecting charged pool equipment to have or not operation in Preset Time section, and will detect the I/O mouth of result feedback to equipment.Thereby the level that MCU adjusts the I/O mouth of equipment according to detecting result is realized charged pool equipment automatic power-off shutdown function without operation in Preset Time section.For example this charged pool equipment can be the electronic equipment with touch-screen, for example mobile phone, panel computer etc., detecting module can be detected on touch-screen and (can be understood as the Preset Time that screen protection starts in certain hour section, for example 5s, 10s, 15s, 30s, 1min, 2min, 5min) there is no touch operation (can determine and have or not operation on touch-screen by the capacitance variations of detecting touch-screen), if detect touch-screen does not all operate within a period of time, can judge that user does not use this equipment, now MCU drags down the level of the I/O mouth of this equipment (being equivalent to detecting module feedback detecting result to I/O mouth) according to this result, become low level, the base stage of triode Q2 is by resistance R 4, R3 and R2 ground connection, now Q2 cut-off.Q2 cut-off causes the cut-off of Q3, and then makes the output terminal of system power supply power supply without electricity, and system enters the state of complete power-off, and charged pool equipment has entered " low-power consumption standby pattern " automatically.Certainly, have operation if detect touch-screen in certain hour section, the level of I/O mouth is maintained high level, and the output terminal of system power supply power supply continues there is electricity, and system is in running order.Wherein, should " low-power consumption standby pattern " be a kind of zero-power shutdown mode, in the time that user needs charged pool equipment to rework, it need to be waken up to mode of operation from " low-power consumption standby pattern ", this wake operation is actually a kind of process of start again, and this process of again starting shooting is consuming time very short, concerning user, this process and traditional standby wakeup difference are little, the experience that therefore can not make troubles.For example this charged pool equipment is the equipment with function button again, such as bluetooth earphone etc., the function button that detecting module can be detected this equipment is in and in certain hour section, has or not button operation (can change to define without button operation by the curtage of detecting key circuit), if detecting the function button of this equipment is in and all there is no button operation in a period of time, can judge that user does not use this equipment, now MCU drags down the level of the I/O mouth of this equipment according to this result, become low level, the base stage of triode Q2 is by resistance R 4, R3 and R2 ground connection, now Q2 cut-off.Q2 cut-off causes the cut-off of Q3, and then makes the output terminal of system power supply power supply without electricity, and system enters the state of complete power-off, and charged pool equipment has entered " low-power consumption standby pattern ", i.e. zero-power shutdown mode automatically.
According to another aspect of the present utility model, a kind of control method of the charged pool equipment based on circuit described in aspect of the utility model is provided, the method comprises: in the time that charged pool equipment is only put into battery and do not started shooting, MCU is in electroless state, the MCU detecting voltage of pin and the equal stateless of the supply voltage of MCU, the base stage of triode Q2 is by resistance R 4, R3 and R2 ground connection, and triode Q2 ends, the output terminal of system power supply power supply is without electricity, and system is in complete off-position;
In the time that charged pool equipment need to be started shooting, switch pushes button, it is high level that the output of battery supply makes the base stage of Q2, Q2 conducting, and then cause Q3 conducting, the output terminal of system power supply power supply powers on to system MCU, and then the level of I/O mouth is drawn high, now unclamp keyswitch, the output terminal of system power supply power supply continues there is electricity, system boot;
In the time that charged pool equipment need to shut down, the switch that again pushes button, the voltage that detects MCU detecting pin as MCU changes, and the level of I/O mouth is dragged down; Again unclamp keyswitch, the base stage of triode Q2 is by resistance R 4, R3 and R2 ground connection, and Q2 ends, and then causes the cut-off of Q3, and the output terminal of system power supply power supply is without electricity, and system closedown is power-off completely also.
In an embodiment of the present utility model, in charged pool device power-up process, in the time that the voltage of MCU detecting pin meets V1=R2*V2/ (R2+R3), the level of I/O mouth is drawn high; Unclamp after keyswitch, I/O mouth is high level, and the voltage of MCU detecting pin becomes V1=R2*V3/ (R2+R3+R1);
In described charged pool equipment shutdown process, again push button after switch, when the voltage of MCU detecting pin is when V1=R2*V3/ (R2+R3+R1) becomes V1=R2*V2/ (R2+R3), the level of I/O mouth is dragged down; Wherein, the voltage of the detecting pin that V1 is MCU, the voltage that V2 is battery supply, the supply voltage that V3 is MCU.
In an embodiment of the present utility model, charged pool equipment also comprises operational module, and MCU also comprises detecting module, and the method also comprises:
After system boot, the operational module of detecting module detecting charged pool equipment has or not operation in Preset Time, if having, the output terminal of system power supply power supply continues there is electricity, and system is in running order; If nothing, MCU drags down the level of I/O mouth, and Q2 ends, and then causes the cut-off of Q3, makes the output terminal of system power supply power supply without electricity, and system enters complete off-position, and charged pool equipment is equivalent to automatically enter Zero-power-consumption standby pattern.Wherein MCU can select the chip with detecting arbitration functions, the Bluetooth chip CSR8670 of for example NUC123SD4AN0 of Nuvoton company or CSR company.Power management chip can be conventional chip, for example the MAX77686PWM power management chip of U.S. letter or the PCF50626PMU of Philip.
In an embodiment of the present utility model, operational module comprises touch-screen and/or function button.
In sum, power-off start-up circuit and the control method of this charged pool equipment of the present utility model, realize the complete power-off of equipment by keyswitch, and can the in the situation that of the complete power-off of equipment, make device start by keyswitch.And, the utility model can also be by presetting a period of time, in Preset Time section, the operational module of detecting system has or not operation behavior, in the time not operating in Preset Time section, adjust the level of equipment I/O, make equipment enter complete off-position, extend the flying power of system battery power supply.Reduce thus system power dissipation, the serviceable life of protection equipment extension device.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All any amendments of doing, be equal to replacement, improvement etc. within spirit of the present utility model and principle, be all included in protection domain of the present utility model.
Claims (6)
1. a power-off start-up circuit for charged pool equipment, is characterized in that, described circuit comprises: triode Q2 and PMOS pipe Q3, divider resistance R1, R2 and R3, current-limiting resistance R4, pull-up resistor R5 and keyswitch;
The source electrode of one end of one end of described keyswitch and the battery supply of described charged battery apparatus, described pull-up resistor R5 and described PMOS pipe Q3 links together;
The collector of the described PMOS pipe grid of Q3 and the other end of described pull-up resistor R5 and described triode Q2 is connected respectively;
The drain electrode of described PMOS pipe Q3 is as the system power supply power output end of described charged pool equipment;
The base stage of described triode Q2 is connected with one end of described current-limiting resistance R4;
The grounded emitter of described triode Q2;
The other end of described current-limiting resistance R4 is connected respectively with one end of described divider resistance R1 and the other end of described keyswitch;
The I/O mouth of the other end of described divider resistance R1 and described charged battery apparatus is connected;
One end of described divider resistance R3 is connected with the other end of described keyswitch;
One end of the other end of described divider resistance R3 and described divider resistance R2 is connected with the MCU with ADC function of described charged pool equipment detecting pin;
The other end ground connection of described divider resistance R2.
2. circuit as claimed in claim 1, is characterized in that, the resistance of described divider resistance R2 and R3 is selected to meet equation V1=R2*V2/ (R2+R3), and wherein, V1 is the voltage of described Micro-processor MCV detecting pin, the voltage that V2 is battery supply.
3. circuit as claimed in claim 1, is characterized in that, described triode Q2 is NPN type triode.
4. circuit as claimed in claim 1, is characterized in that, described circuit also comprises with first of keyswitch parallel connection and disappears and tremble electric capacity and/or one end and be connected second of MCU detecting pin, other end ground connection and disappear and tremble electric capacity.
5. the circuit as described in any one in claim 1 to 4, is characterized in that,
Described charged pool equipment also comprises operational module, and described MCU also comprises detecting module, and described detecting module is detected described operational module and have or not operation in Preset Time section, and will detect result feedback to described I/O mouth.
6. circuit as claimed in claim 5, is characterized in that, described operational module comprises touch-screen and/or function button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320851042.7U CN203720777U (en) | 2013-12-20 | 2013-12-20 | Outage starting circuit of equipment provided with battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320851042.7U CN203720777U (en) | 2013-12-20 | 2013-12-20 | Outage starting circuit of equipment provided with battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203720777U true CN203720777U (en) | 2014-07-16 |
Family
ID=51159915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320851042.7U Expired - Lifetime CN203720777U (en) | 2013-12-20 | 2013-12-20 | Outage starting circuit of equipment provided with battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203720777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713724A (en) * | 2013-12-20 | 2014-04-09 | 青岛歌尔声学科技有限公司 | Outage starting circuit with battery equipment and control method |
| CN109062393A (en) * | 2018-07-25 | 2018-12-21 | 苏州浪潮智能软件有限公司 | A kind of design scheme for realizing included UPS terminal device system interlink switch with software mode |
-
2013
- 2013-12-20 CN CN201320851042.7U patent/CN203720777U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713724A (en) * | 2013-12-20 | 2014-04-09 | 青岛歌尔声学科技有限公司 | Outage starting circuit with battery equipment and control method |
| CN109062393A (en) * | 2018-07-25 | 2018-12-21 | 苏州浪潮智能软件有限公司 | A kind of design scheme for realizing included UPS terminal device system interlink switch with software mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103713724A (en) | Outage starting circuit with battery equipment and control method | |
| CN110719543B (en) | TWS Bluetooth headset data protection device and method | |
| CN106532902B (en) | double-battery control device and method for mobile terminal | |
| CN103683348B (en) | There is the electronic installation of power consumption detecting function | |
| CN104850021B (en) | A kind of power on/off system | |
| WO2017036156A1 (en) | Terminal reset control method, controller and system | |
| CN104270003A (en) | Power source control method, circuit and electrical device | |
| CN203643779U (en) | Outage wake-up circuit of ammeter metering terminal | |
| CN103905756A (en) | Television set failure processing device and television set | |
| CN103699199A (en) | Electronic device on-off control device and electronic device | |
| CN103576816B (en) | Switching on and shutting down control circuit | |
| CN202998373U (en) | Audio and video equipment intelligent power supply management system | |
| WO2013033948A1 (en) | Mobile terminal boot control method and mobile terminal | |
| CN203720777U (en) | Outage starting circuit of equipment provided with battery | |
| CN105204601A (en) | System automatic power-on circuit and method | |
| CN202353536U (en) | Time adjustable switching circuit | |
| CN210780130U (en) | Power-off control circuit | |
| CN203552220U (en) | Touch device of multiplex touch display screen | |
| CN204290714U (en) | A kind of power control circuit and electric equipment | |
| CN205142167U (en) | Time delay outage reset circuit | |
| CN101977265A (en) | Method for viewing time in off state of mobile phone and mobile phone thereof | |
| US9763196B2 (en) | Mobile hotspot UFI device and start-up method | |
| CN203734748U (en) | Standby circuit of TV set and TV set | |
| CN210157162U (en) | Key combined circuit for realizing hardware reset | |
| CN211351757U (en) | Low-power consumption standby circuit, mobile power supply and robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |