CN206790159U - Power-supply controller of electric, component and weighing device - Google Patents
Power-supply controller of electric, component and weighing device Download PDFInfo
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- CN206790159U CN206790159U CN201720544227.1U CN201720544227U CN206790159U CN 206790159 U CN206790159 U CN 206790159U CN 201720544227 U CN201720544227 U CN 201720544227U CN 206790159 U CN206790159 U CN 206790159U
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Abstract
The utility model provides power-supply controller of electric, power supply module and weighing device.Power-supply controller of electric includes：Control module, it is connected with battery, for according to trigger signal and maintenance signal output or stopping output cell voltage；Trigger module, for receiving switch key signal, and trigger signal and microcontroller switching signal according to the switch key signal output；And maintenance module, the control signal returned for receiving microcontroller in response to the microcontroller switching signal, and the maintenance signal is exported according to the control signal.It can accomplish really to shut down using the device of the power-supply controller of electric when using only battery.
Description
Technical field
The utility model relates generally to power supply field, more particularly to a kind of power-supply controller of electric of weighing device.
Background technology
Waterproof scale is widely used in the food sellings such as meat, aquatic products, manufacture field, and its basic characteristics is that usage time is long, made
It is big with frequency height, usage amount.In operation, waterproof scale needs often to contact with water, therefore has to water resistance higher
It is required that.Because waterproof scale is moist, crowded using site environment, AC power access is very inconvenient, dangerous, therefore user inclines
To in the waterproof scale using charged pool.Again because user generally has substantial amounts of scale, management, use to scale, battery maintenance carry
Go out higher requirement.
Existing waterproof scale is only capable of closing the circuits such as LED, microcontroller (Micro when using only battery, during shutdown
Control Unit, MCU) still working, it can not accomplish really to shut down, compare power consumption.Also, the charging of existing waterproof scale
Process is needed just carry out by key, and some users can be forgotten after AC power is connected by key, and this results in anti-
Water scale connects AC power, but situation about not charged happens occasionally.
In addition, existing waterproof scale is mixed with artificial circuit part 5V power supplies and digital circuits section 3.3V/5V power supplies, electricity
Cell voltage directly drops to given voltage by low pressure difference linear voltage regulator (low dropout regulator, LDO), uses effect
Rate is low, and part energy waste is on LDO.If battery rated voltage is 6V, analog circuit service efficiency 83%, digital circuit is only
Have 55%.It is about 1 in the power dissipation ratio of analog circuit and digital circuit:When 4, battery overall efficiency about 60.6%.
Furthermore existing waterproof scale does not have obvious battery status to show, user can worry do not have suddenly in use
Electricity, influence to use.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of power-supply controller of electric, and it can use the power-supply controller of electric
Device accomplish really to shut down when using only battery.
In order to solve the above technical problems, the utility model provides a kind of power-supply controller of electric, including：Control module, with electricity
Pond connects, for according to trigger signal and maintenance signal output or stopping output cell voltage；Trigger module, switched for receiving
Push button signalling, and trigger signal and microcontroller switching signal according to the switch key signal output；And maintain mould
Block, the control signal returned for receiving microcontroller in response to the microcontroller switching signal, and believed according to the control
Number output maintenance signal.
In an embodiment of the present utility model, the control module includes FET, the source electrode of the FET
It is connected with the battery；The grid of the FET is connected respectively with the trigger module and the maintenance module, for connecing
Receive the trigger signal and the maintenance signal；The drain electrode of the FET is used to export the cell voltage.
In an embodiment of the present utility model, the trigger module includes first resistor, the first diode and the two or two
Pole pipe, one end of the first resistor are connected with the battery, and the other end is connected with the positive pole of first diode；Described
The negative pole of one diode is connected with the negative pole of second diode, and for receiving the switch key signal；Described
The positive pole of one diode is used to export the trigger signal；The positive pole of second diode is opened for exporting the microcontroller
OFF signal.
In an embodiment of the present utility model, the maintenance module includes triode and voltage providing unit, and described three
The emitter stage of pole pipe is used to receive the control signal；The base stage of the triode is connected with the voltage providing unit；It is described
The colelctor electrode of triode is used to export the maintenance signal.
Another aspect of the present utility model provides another power-supply controller of electric, including：Adaptor channel, for directly defeated
Go out adaptor voltages；And cell channel, for exporting cell voltage；The cell channel includes：Control module, connect with battery
Connect, for exporting the cell voltage according to trigger signal and maintenance signal output or stopping；Trigger module, switched for receiving
Push button signalling, and trigger signal and microcontroller switching signal according to the switch key signal output；And maintain mould
Block, the control signal returned for receiving microcontroller in response to the microcontroller switching signal, and believed according to the control
Number output maintenance signal.
Another aspect of the present utility model provides a kind of power supply module, including：Power-supply controller of electric as described above；And
Voltage reduction module；The voltage reduction module includes：DC/DC reduction voltage circuits, for cell voltage or adaptor voltages to be down into the first electricity
Pressure；First reduction voltage circuit, for first voltage to be down into second voltage, to be supplied to analog circuit and/or sensor；And the
Two reduction voltage circuits, for first voltage to be down into tertiary voltage, to be supplied to digital circuit.
Another aspect of the present utility model provides a kind of weighing device, including power-supply controller of electric as described above, or such as
Upper described power supply module.
Compared with prior art, the utility model has advantages below：
Power-supply controller of electric of the present utility model can make to include its device when using only battery powered, accomplish really
Shutdown, greatly reduces the electric discharge of battery in the power-offstate；Its device can also be made to include when using adaptor charge
Key need not be clicked, you can charged.Weighing device of the present utility model employs the component of low-voltage, uses
DC/DC carries out voltage transformation, improves the service efficiency of battery, can effectively economize on electricity, extends the usage time of battery,
Change the maintenance plan of battery.
Brief description of the drawings
Fig. 1 is the weighing device of the embodiment of the utility model one.
Fig. 2 is the structural representation of the power-supply controller of electric of the embodiment of the utility model one.
Fig. 3 is the circuit diagram of the power-supply controller of electric of the embodiment of the utility model one.
Fig. 4 is the structural representation of the voltage reduction module of the embodiment of the utility model one.
Fig. 5 is the weighing device of another embodiment of the utility model.
Fig. 6 is the circuit diagram of the power-supply controller of electric of another embodiment of the utility model.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing to this practicality
New embodiment elaborates.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be different from other manner described here to implement using other, therefore the utility model is not by following public tool
The limitation of body embodiment.
As shown in the application and claims, unless context clearly prompts exceptional situation, " one ", "one", " one
The word such as kind " and/or "the" not refers in particular to odd number, may also comprise plural number.It is, in general, that term " comprising " is only prompted to wrap with "comprising"
Include clearly identify the step of and element, and these steps and element do not form one it is exclusive enumerate, method or equipment
The step of may also including other or element.
Embodiment one
Fig. 1 is the weighing device of the embodiment of the utility model one.The mould related to power supply is only shown in Fig. 1
Block, other modules unrelated with inventive point of the present utility model (such as sensor, numeric keypad etc.) are not shown.It refer to figure
1, weighing device 100 includes microcontroller (MCU) 110, power-supply controller of electric 120, voltage reduction module 130, switch key 140, battery
150 and display module 160.
Battery 150 is connected respectively with microcontroller 110, power-supply controller of electric 120, and cell voltage is exported to microcontroller
110 and power-supply controller of electric 120.Microcontroller 110 detects to cell voltage, and can pass through the battery in display module 160
Status display unit 161 shows the state of battery 150, such as electricity.
Power-supply controller of electric 120 is also connected respectively with microcontroller 110 and switch key 140, for according to switch key 140
Switch key signal (KeyPad_ON-OFF) and microcontroller 110 export control signal (MCU_nOFF) determine output or
Stop output cell voltage.Switch key signal has first state (corresponding open state), the second state (corresponding shutdown shape
State) and the third state (corresponding triggering off-mode).Control signal has first state (corresponding open state) and the second state
(corresponding off-mode).When switch key signal or control signal are in first state, power-supply controller of electric 120 determines output electricity
Cell voltage；When switch key signal and control signal are in the second state, power-supply controller of electric 120 stops output battery electricity
Pressure.For example, enabled if power-supply controller of electric 120 is low level, be then at least one switch key signal and control signal
During low level, power-supply controller of electric 120 exports cell voltage；When switch key signal and control signal are high level, power supply
Controller 120 stops output cell voltage.It is appreciated that power-supply controller of electric 120 can also be that high level enables, now, opening
When at least one close button signal and control signal are high level, power-supply controller of electric 120 exports cell voltage；Believe in switch key
Number and control signal when being low level, power-supply controller of electric 120 stops output cell voltage.The 3rd on switch key signal
State, repeat after appearance.
In addition, energy supply control module 120 is additionally operable to the state output microcontroller switching signal according to switch key signal
(MCU_ON-OFF) microcontroller 110 is given.Microcontroller 110 determines the state of control signal according to microcontroller switching signal.
When switch key signal is in first state, microcontroller switching signal is also at first state (corresponding open state).When
When switch key signal is in the second state, microcontroller switching signal is also at the second state (corresponding off-mode).When opening
When close button signal is in the third state, microcontroller switching signal is also at the third state (corresponding triggering off-mode).When
When microcontroller 110 detects that microcontroller switching signal is in first state, control signal is arranged to first state.When micro-
When controller 110 detects that microcontroller switching signal is in the third state, control signal is arranged to the second state.Citing and
Speech, microcontroller switching signal can have identical state instruction level and duration with switch key signal, that is, switch
When push button signalling is low level, microcontroller switching signal is similarly low level, and continues the identical time.It is it is appreciated that micro-
Controller switches signal can also have opposite state instruction level with switch key signal, and continue the identical time, i.e.,
When switch key signal is low level, microcontroller switching signal is high level, and continues the identical time.It should be noted
It is that first state, the second state and the third state, can pass through possessed by switch key signal, microcontroller switching signal
Indicate combination, instruction level and the combination of duration of the state of level and miscellaneous part or signal is encoded
Arrive, the utility model is not any limitation as to this implementation.
Voltage reduction module 130 is connected respectively with power-supply controller of electric 120 and microcontroller 110, for receiving power-supply controller of electric 120
The cell voltage of output, after cell voltage is depressured, export to microcontroller 110, to provide electric energy for microcontroller 110.
Display module 160 is connected with microcontroller 110, for the output display battery status according to microcontroller 110, is claimed
Weight information etc..Display module 160 can include battery status display unit 161 and LED charactrons display unit 162.Battery shape
State display unit 161 is used to show battery status information.LED charactrons display unit 162 is used to show weighing information.
Fig. 2 is the structural representation of the power-supply controller of electric of the embodiment of the utility model one.It refer to Fig. 2, power-supply controller of electric
120 include control module 121, trigger module 122 and maintenance module 123.
Control module 121 is connected respectively with battery 150, trigger module 122 and maintenance module 123, and according to trigger module
The maintenance signal output or the cell voltage of stopping output battery 150 that the trigger signal and maintenance module 123 of 122 outputs export.
Trigger signal has first state (corresponding open state) and the second state (corresponding off-mode), maintains signal also to have first
State and the second state.When trigger signal or maintenance signal are in first state, control module 121 determines output battery electricity
Pressure；When trigger signal and maintenance signal are in the second state, control module 121 stops output cell voltage.
Trigger module 122 is used to receive switch key signal, and according to the state output trigger signal of switch key signal
With microcontroller switching signal.When switch key signal is in first state, trigger signal and microcontroller switching signal
In first state (corresponding open state)；When switch key signal is in the second state, trigger signal and microcontroller are opened
OFF signal is also at the second state (corresponding off-mode)；(the corresponding triggering shutdown when switch key signal is in the third state
State), microcontroller switching signal is also at the third state.It is appreciated that trigger signal and microcontroller switching signal can be with
There is identical or opposite state instruction level with switch key signal respectively.
Maintenance module 123 is used to receive the control signal that microcontroller returns in response to microcontroller switching signal, and root
Exported according to control signal and maintain signal.When control signal is in first state, signal is maintained to be also at first state (corresponding to open
Machine state)；When control signal is in the second state, signal is maintained to be also at the second state (corresponding off-mode).It is similar to
Above, signal is maintained to have identical or opposite state instruction level with control signal.
When weighing device 100 is in off-mode, switch key 140 is pressed, and now switch key signal is in the
One state (such as first state is defined as by the off-mode of weighing device 100 and instruction level), trigger signal and micro-
Controller switches signal is also first state.Control module 121 exports the battery electricity of battery 150 under the control of trigger signal
Pressure, microcontroller 110 start power up.Microcontroller 110 will be controlled when detecting that microcontroller switching signal is in first state
Signal processed is arranged to first state, now maintains signal to be also accordingly in first state.After trip switch button 140 (now
Switch key signal is in the second state), control module 121 can continue in the case where maintaining the control of signal (being in first state)
Export cell voltage.
When weighing device 100 is in open state, switch key 140 is pressed, and now switch key signal is in the
Three condition (such as the third state is defined as with instruction level by the open state of weighing device 100), microcontroller switch
Signal is also the third state.When it is the third state that microcontroller 110, which detects microcontroller switching signal, control signal is set
The second state is set to, now maintains signal to be also accordingly in the second state.After trip switch button 140, switch key signal
In the second state, signal is maintained to be similarly in the second state, therefore controller 121 stops the cell voltage of output battery 150,
Whole weighing device 100, including microcontroller 110 will stop power supply.
Fig. 3 is the circuit diagram of the power-supply controller of electric of the embodiment of the utility model one.It refer to Fig. 3, control module 121
Including FET Q1；Trigger module 122 includes resistance R1, diode D1 and diode D2；Maintenance module 123 includes triode
Q2 and voltage providing unit 123a.
FET Q1 source S is connected with battery 150.FET Q1 grid G and trigger module 122 and maintenance mould
Block 123 connects respectively, for receiving trigger signal and maintaining signal.FET Q1 drain D is used to export cell voltage.
Resistance R1 one end is connected with battery 150, and the other end is connected with diode D1 positive pole.Diode D1 negative pole with
Diode D2 negative pole is connected, and for receiving switch key signal.Diode D1 positive pole is used to export trigger signal.Two
Pole pipe D2 positive pole is used to export microcontroller switching signal.
Triode Q2 emitter e is used to receive control signal.Triode Q2 base stage b and voltage providing unit 123a connects
Connect.Triode Q2 colelctor electrode c, which is used to export, maintains signal.Due to microcontroller 110, control signal is always in power up
In high level state, the present embodiment controls triode Q2 emitter e, rather than common base stage b using control signal,
The maloperation during system power-on reset can be prevented.
Voltage providing unit 123a can be made up of voltage source, resistance R2 and resistance R3.Resistance R2 and resistance R3 series connection connects
Connect, the resistance R2 and resistance R3 both ends that voltage source is applied a voltage to after series connection.Triode Q2 base stage b and resistance R2 and electricity
Hinder the connection end connection between R3.Preferably, voltage source is voltage reduction module 130.Preferably, the voltage of voltage source is 3.3V.
In addition, power-supply controller of electric 120 can also have diode D3.Diode D3 positive pole and FET Q1 drain electrode
D connections, negative pole are used to export cell voltage.
In this way, weighing device 100 is in off-mode, and after pinning switch key 140, switch key signal (KeyPad_
ON-OFF) continue for some time as low level.Diode D1 is turned on, and the voltage of diode D1 positive poles is pulled low, i.e. output triggering
Signal, turn on FET Q1, power-supply controller of electric 120 exports cell voltage.Diode D2 is equally turned on, diode D2 positive poles
Voltage be also pulled low, it is low level to make microcontroller switching signal (MCU_ON_OFF).Cell voltage drops through voltage reduction module 130
Exported after pressure to microcontroller 110.Microcontroller 110 is started working after the power-up, and detects microcontroller switching signal (MCU_
ON_OFF state).When it is low level to detect microcontroller switching signal (MCU_ON_OFF), microcontroller 110 will be controlled
Signal (MCU_nOFF) processed is arranged to low level and kept.Now, triode Q2 constant conductions, the electricity of triode Q2 colelctor electrode
Pressure is maintained at a low level, i.e. output maintains signal, makes FET Q1 constant conductions, power-supply controller of electric 120 persistently exports battery
Voltage.
When weighing device 100 is in open state, after pinning switch key 140, diode D2 conductings, drive microcontroller
OFF signal (MCU_ON_OFF) is low level.If microcontroller 110 detects microcontroller switching signal (MCU_ON_OFF)
Exceed predetermined value for the low level duration, then control signal (MCU_nOFF) is arranged to high level, pressed in trip switch
After key 140, power-supply controller of electric 120 stops output supply voltage.The real shutdown of weighing device 100 is so realized, is subtracted significantly
The electric discharge of battery 150 is in the power-offstate lacked.
In this way, after the shutdown of weighing device 100, due to voltage source Non voltage output, and electricity is restarted on microcontroller 110
When, the always high level of its stitch output, such triode Q2 is not turned on, and FET Q1 source S and the voltage of grid G are total
It is equal, so FET Q1 is not turned on, it is therefore prevented that error starting.
Fig. 4 is the structural representation of the voltage reduction module of the embodiment of the utility model one.Fig. 4 is refer to, voltage reduction module 130 wraps
Include DC/DC reduction voltage circuits 131, the first reduction voltage circuit 132 and the second reduction voltage circuit 132.DC/DC reduction voltage circuits 131 are used for electricity
The voltage that source controller 120 exports is down to first voltage.First voltage is preferably 3.47V.First reduction voltage circuit 132 is used for will
First voltage is down to second voltage, to be supplied to analog circuit and/or sensor.Preferably, second voltage 3.3V.Second drop
Volt circuit 133 is used to first voltage being down to tertiary voltage, to be supplied to digital circuit.Preferably, tertiary voltage 3.3V.
In a preferred embodiment, the voltage that power-supply controller of electric 120 exports is down to 3.47V by DC/DC reduction voltage circuits 131,
3.47V voltages are down to 3.3V, and the sensor of whole system, mould by the first reduction voltage circuit 132 and the second reduction voltage circuit 133 again
Intend circuit and digital circuit is powered using 3.3V.However, existing weighing device can at least be powered using 5V all the way.Compare
In existing weighing device, because the present embodiment uses 3.3V component, itself is low in energy consumption, and uses DC/DC decompression skills
Art, reduce loss of the energy on power conversion, improve the service efficiency of battery.Specifically, the use of the present embodiment
Efficiency is at least 3.3/3.47*90%=85.6%, wherein the efficiency of usual DC/DC pressure drops circuit is generally more than 90%.
In addition, when LED driving IC are directly driven using 3.3V, situation is directly driven compared to 5V, in similar brightness feelings
Under condition, from originally, about 1.2mA dropped to 0.9mA for every section of LED power consumption, can economize on electricity 25%.Driven in sensor using 3.3V low pressure
When dynamic, powered compared to sensor 5V, can economize on electricity 34%.When sensor uses 1000ohm input impedance resistance, compared to
Usual 350ohm sensors, can economize on electricity 65%.
According to actual test, under severe use condition, using the same lead-acid battery (6V, 5A), compared to existing
Weighing device, using power-saving technique of the present utility model weighing device the continuous use time from original double aobvious 100 hours,
List lifting in aobvious 130 hours shows 160 hours to double, and single aobvious 250 hours, usage time greatly improves.Under actual normal operating condition
(every Libra body running 8 hours, holding state, automatic shutdown state is opened), uses weighing for power-saving technique of the present utility model
Device can be accomplished to safeguard once for 1 month, it may be said that fundamentally change the maintenance plan of battery.
Embodiment two
Fig. 5 is the weighing device of another embodiment of the utility model.It refer to Fig. 5, the corresponding Fig. 1 institutes of weighing device 200
The weighing device more than 100 that shows adapter 170 and charging circuit 180, and power-supply controller of electric 120 ' and power-supply controller of electric 120
It is different outer, remaining part all same, therefore also use identical reference.With the identical part of weighing device 100
It is not repeated to describe herein, mainly the relevant portion of adapter 170, charging circuit 180 and power-supply controller of electric 120 ' is entered below
Row description.
Adapter 170 is used to electric main being converted into DC voltage, and is supplied to microcontroller 110, power-supply controller of electric
120 ' and charging circuit 180.Preferably, the DC voltage that adapter 170 exports is between 9-12V.
The DC voltage that microcontroller 110 exports to adapter 170 detects, and can be by display module 160
Battery status display unit 161 shows corresponding information.
Fig. 6 is the circuit diagram of the power-supply controller of electric of another embodiment of the utility model.It refer to Fig. 6, power supply
Device 120 ' includes a of adaptor channel 120 ' and the b of cell channel 120 '.
The a of adaptor channel 120 ' is used for direct o adapter voltage, i.e., the DC voltage that adapter 170 exports.Need
It is noted that " directly output " described herein refers to without switch control output.The a of adaptor channel 120 ' can have two poles
Pipe D4, diode D4 positive pole are connected with the output end of adapter 170, and negative pole is used for o adapter voltage.
The b of cell channel 120 ' is identical with the power-supply controller of electric 120 in embodiment one, is not repeated to describe herein.
In this way, when electric on adapter 170, weighing device 200 is directly powered using adapter 170, now, microcontroller
110 are always at working condition, even if being shut down by switch key 140, are also in the false shutdown of the closing of display module 160
State, microcontroller 110 are monitoring the state of battery, button etc. always.
Charging circuit 180 is also connected with microcontroller 110 and battery 150, right under the control of microcontroller 110
Battery 150 is charged.In this way, microcontroller 110 can directly control charging electricity when it is that adapter 170 is powered to detect
Road 180 is charged to battery 150, and unlike existing weighing device, needing to click key in charging can just be filled
Electricity.
Although power-supply controller of electric is illustrated in the form of in weighing device in the utility model, but it should reason
Solve, the power-supply controller of electric in the utility model can be used for other devices, such as mobile phone, palm PC, tablet personal computer
Etc., the utility model is not limited to this.
It should be appreciated that when an element be referred to as " on another element ", " being connected to another element ", " be coupled in
When another element " or " contacting another element ", it can directly on another element, be connected or coupled to,
Or another element is contacted, or there may be insertion element.By contrast, when an element is referred to as " directly another
On individual element ", " being directly connected in ", " directly condense in " or during " directly contact " another element, in the absence of insertion element.Together
Sample, when first element is referred to as " making electrical contact with " or " being electrically coupled to " second element, in first element and this second yuan
The power path for allowing electric current flowing between part be present.The power path can include capacitor, the inductor of coupling and/or permission electricity
Other elements of flowing, or even do not contacted directly between conducting element.
Although the utility model describes with reference to current specific embodiment, ordinary skill in the art
Personnel are it should be appreciated that the embodiment of the above is intended merely to illustrate the utility model, without departing from the utility model spirit
In the case of can also make various equivalent change or replacement, therefore, as long as to upper in spirit of the present utility model
State the change of embodiment, modification will all fall in the range of following claims.
Claims (7)
1. a kind of power-supply controller of electric, it is characterised in that the power-supply controller of electric includes：
Control module, it is connected with battery, for according to trigger signal and maintenance signal output or stopping output cell voltage；
Trigger module, for receiving switch key signal, and the trigger signal and micro- according to the switch key signal output
Controller switches signal；And
Maintenance module, the control signal returned for receiving microcontroller in response to the microcontroller switching signal, and according to
The control signal exports the maintenance signal.
2. power-supply controller of electric according to claim 1, it is characterised in that the control module includes FET, wherein：
The source electrode of the FET is connected with the battery；The grid of the FET and the trigger module and the dimension
Hold module to connect respectively, for receiving the trigger signal and the maintenance signal；The drain electrode of the FET is used to export
The cell voltage.
3. power-supply controller of electric according to claim 1, it is characterised in that the trigger module includes first resistor, first
Diode and the second diode, wherein：
One end of the first resistor is connected with the battery, and the other end is connected with the positive pole of first diode；Described
The negative pole of one diode is connected with the negative pole of second diode, and for receiving the switch key signal；Described
The positive pole of one diode is used to export the trigger signal；The positive pole of second diode is opened for exporting the microcontroller
OFF signal.
4. power-supply controller of electric according to claim 1, it is characterised in that the maintenance module includes triode and voltage carries
For unit, wherein：
The emitter stage of the triode is used to receive the control signal；The base stage of the triode and the voltage providing unit
Connection；The colelctor electrode of the triode is used to export the maintenance signal.
5. a kind of power-supply controller of electric, it is characterised in that the power-supply controller of electric includes：
Adaptor channel, for direct o adapter voltage；And
Cell channel, for exporting cell voltage；The cell channel includes：
Control module, it is connected with battery, for exporting the cell voltage according to trigger signal and maintenance signal output or stopping；
Trigger module, for receiving switch key signal, and the trigger signal and micro- according to the switch key signal output
Controller switches signal；And
Maintenance module, the control signal returned for receiving microcontroller in response to the microcontroller switching signal, and according to
The control signal exports the maintenance signal.
6. a kind of power supply module, it is characterised in that the power supply module includes：
Power-supply controller of electric as described in any one of claim 1 to 5；And
Voltage reduction module；The voltage reduction module includes：
DC/DC reduction voltage circuits, for cell voltage or adaptor voltages to be down into first voltage；
First reduction voltage circuit, for first voltage to be down into second voltage, to be supplied to analog circuit and/or sensor；And
Second reduction voltage circuit, for first voltage to be down into tertiary voltage, to be supplied to digital circuit.
7. a kind of weighing device, it is characterised in that the weighing device includes the power supply as described in any one of claim 1 to 5
Controller, or power supply module as claimed in claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544227.1U CN206790159U (en) | 2017-05-15 | 2017-05-15 | Power-supply controller of electric, component and weighing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544227.1U CN206790159U (en) | 2017-05-15 | 2017-05-15 | Power-supply controller of electric, component and weighing device |
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| Publication Number | Publication Date |
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| CN206790159U true CN206790159U (en) | 2017-12-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184362A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳市道通智能航空技术有限公司 | Activation system for electric meter and electronic device |
| WO2021223139A1 (en) * | 2020-05-07 | 2021-11-11 | 深圳市大疆创新科技有限公司 | Power on/off control device and electronic equipment |
| CN114543957A (en) * | 2020-11-26 | 2022-05-27 | 梅特勒-托利多(常州)测量技术有限公司 | Real-time processing method of detection signal and detector |
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2017
- 2017-05-15 CN CN201720544227.1U patent/CN206790159U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184362A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳市道通智能航空技术有限公司 | Activation system for electric meter and electronic device |
| WO2021223139A1 (en) * | 2020-05-07 | 2021-11-11 | 深圳市大疆创新科技有限公司 | Power on/off control device and electronic equipment |
| CN114543957A (en) * | 2020-11-26 | 2022-05-27 | 梅特勒-托利多(常州)测量技术有限公司 | Real-time processing method of detection signal and detector |
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