CN207939403U - A kind of supply unit and intelligent lock device - Google Patents
A kind of supply unit and intelligent lock device Download PDFInfo
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- CN207939403U CN207939403U CN201820142030.XU CN201820142030U CN207939403U CN 207939403 U CN207939403 U CN 207939403U CN 201820142030 U CN201820142030 U CN 201820142030U CN 207939403 U CN207939403 U CN 207939403U
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Abstract
The utility model discloses a kind of supply units, including：Voltage input end, the first filter module, energy supply control module, voltage control module, the second filter module and voltage output end；The input terminal of first filter module is connect with the voltage input end, and the output end of first filter module is connect with the input terminal of the energy supply control module；First output end of the energy supply control module is connect with the first input end of the voltage control module, and the second output terminal of the energy supply control module is connect with the second input terminal of the voltage control module；The output end of the voltage control module is connect with the voltage output end；The input terminal of second filter module is connect with the output end of the voltage control module, and the output end of second filter module is connect with the voltage output end.The invention also discloses a kind of intelligent lock devices.Using the utility model embodiment, the service efficiency of battery can be effectively promoted, the usage time of battery is extended.
Description
Technical field
The utility model is related to electronic technology field more particularly to a kind of supply units and intelligent lock device.
Background technology
Be referring to Fig. 1, Fig. 1 the prior art intelligent lock device in lithium battery electrical schematic.Current existing intelligence
Lock scheme is largely powered using the disposable lithium cell of 3.6V, and lithium battery is controlled with MCU (micro-control unit)
Chip is in and is directly connected to state, is powered directly to MCU by lithium battery, drives the normal work of MCU, to control other
System module circuit work.Simultaneously as GSM/GPS (global system for mobile communications/global positioning system) module
Voltage requirements are 3.8~4V, and lithium battery will also carry out boost conversion by DC-DC (DC-DC) boost conversion chip, to
It is powered for GSM/GPS modules, drives its normal work.
But since lithium battery is disposable supplying cell, in the case where lithium battery can be consumed constantly, lithium battery
Internal resistance increases, and the voltage of lithium battery can be gradually reduced, and the normal power supply voltage range of MCU is generally 2V~3.6V, usually supplies
Piezoelectric voltage is 3.3V voltages, and the input voltage of DC-DC boost conversion chips is generally 0.7V~5V, therefore when the voltage of lithium battery
Drop to can not support MCU work normally (about 2V or so) when, need to re-replace battery at this time, it is easy to cause electricity
The waste in pond can not efficiently utilize the electric energy of battery.Simultaneously as critical values of the 3.6V close to the maximum supply power voltage of MCU,
Therefore if cell voltage is unstable, the unstability of system operation is also easily caused, to increase the maintenance cost of enterprise.
Utility model content
The purpose of the utility model embodiment is to provide a kind of supply unit and intelligent lock device, can effectively promote battery
Service efficiency extends the usage time of battery.
To achieve the above object, the utility model embodiment provides a kind of supply unit, including：Voltage input end,
One filter module, energy supply control module, voltage control module, the second filter module and voltage output end；Wherein,
The input terminal of first filter module is connect with the voltage input end, the output end of first filter module
It is connect with the input terminal of the energy supply control module；
First output end of the energy supply control module is connect with the first input end of the voltage control module, the electricity
The second output terminal of source control module is connect with the second input terminal of the voltage control module；
The output end of the voltage control module is connect with the voltage output end；
The input terminal of second filter module is connect with the output end of the voltage control module, the second filtering mould
The output end of block is connect with the voltage output end.
Compared with prior art, supply unit disclosed by the utility model receives the electricity by the energy supply control module
The voltage of input terminal input is pressed, and by the energy supply control module and the voltage control module to the voltage input end
Voltage carries out voltage stabilizing control, so that the voltage of the voltage output end is in fixed value.In addition, first filter module and described
Second filter module can also play filter action.The electric energy of battery, battery electricity can not efficiently be utilized in the prior art by solving
Unstable problem that is unstable and causing system operation is pressed, the service efficiency of battery can be effectively promoted, extends the use of battery
Time.
As the improvement of said program, first filter module includes the first capacitance, the second capacitance and third capacitance；Its
In,
The first end of first capacitance is connect with the input terminal of first filter module, and the second of first capacitance
End ground connection；
The first end of second capacitance is connect with the first end of first capacitance, the second termination of second capacitance
Ground；
The first end of the third capacitance is connect with the first end of second capacitance, and the first end of the third capacitance is also
It is connect with the output end of first filter module, the second end ground connection of the third capacitance.
As the improvement of said program, second filter module includes the 4th capacitance, the 5th capacitance and the 6th capacitance；Its
In,
The first end of 4th capacitance is connect with the input terminal of second filter module, and the second of the 4th capacitance
End ground connection；
The first end of 5th capacitance is connect with the first end of the 4th capacitance, the second termination of the 5th capacitance
Ground；
The first end of 6th capacitance is connect with the first end of the 5th capacitance, and the first end of the 6th capacitance is also
It is connect with the output end of second filter module, the second end ground connection of the 6th capacitance.
As the improvement of said program, the energy supply control module includes power supply control chip, inductance and 3rd resistor；Its
In,
5th pin of the power supply control chip is connect with the input terminal of the energy supply control module, the power supply control
First pin of chip is connect with the first output end of the energy supply control module, the tenth pin of the power supply control chip with
The second output terminal of the energy supply control module connects；
The first end of the inductance is connect with the 4th pin of the power supply control chip, the second end of the inductance and institute
State the second pin connection of power supply control chip；
The first end of the 3rd resistor is connect with the 5th pin of the power supply control chip, the 3rd resistor
Second end be separately connected the 6th pin, the 7th pin and the 8th pin of the power supply control chip.
As the improvement of said program, the voltage control module includes first resistor and second resistance；Wherein,
The first end of the first resistor is connect with the first input end of the voltage control module, the first resistor
First end is also connect with the output end of the voltage control module, the second end of the first resistor and the voltage control module
The second input terminal connection；
The first end of the second resistance is connect with the second end of the first resistor, the second termination of the second resistance
Ground.
As the improvement of said program, the energy supply control module further includes the 7th capacitance, and the first of the 7th capacitance
End is connect with the second end of the 3rd resistor, the second end ground connection of the 7th capacitance.
As the improvement of said program, the energy supply control module further includes the 8th capacitance, and the first of the 8th capacitance
End is connect with the first pin of the power supply control chip, and the of the second end of the 8th capacitance and the power supply control chip
Ten pins connect.
As the improvement of said program, the model TPS63000 of the power supply control chip, the power supply control chip
Third pin, the 9th pin and the 11st pin be grounded.
To achieve the above object, the utility model embodiment additionally provides a kind of intelligent lock device, including battery, microcontroller
Unit and the supply unit as described in any one of above-described embodiment；Wherein,
The voltage input end of the supply unit is connect with the battery, the voltage output end of the supply unit with it is described
Micro-control unit connects.
Compared with prior art, intelligent lock device disclosed in the present embodiment by the intelligent lock device to the battery
Output voltage carries out voltage adjustment, so that the output voltage is equal with the optimum operating voltage of the micro-control unit, in turn
So that the micro-control unit is in optimum Working.The electric energy of battery can not efficiently be utilized in the prior art by solving,
Cell voltage is unstable and causes the unstable problem of system operation, can effectively promote the service efficiency of battery, extends battery
Usage time.
As the improvement of said program, it is described intelligence lock device further include boost module, first load and second load,
In,
The boost module is separately connected the battery and first load；The micro-control unit is separately connected described
First load and described second loads.
Description of the drawings
Fig. 1 be the prior art intelligent lock device in lithium battery electrical schematic；
Fig. 2 is a kind of structural schematic diagram for supply unit that the utility model embodiment one provides；
Fig. 3 is a kind of circuit structure diagram for supply unit that the utility model embodiment one provides；
Fig. 4 is a kind of structural schematic diagram for intelligent lock device that utility model embodiment two provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one
It is a kind of structural schematic diagram for supply unit that the utility model embodiment one provides referring to Fig. 2, Fig. 2；Including：Electricity
Press input terminal IN, the first filter module 11, energy supply control module 12, voltage control module 13, the second filter module 14 and voltage
Output end OUT；Wherein,
The input terminal IN2 of first filter module 11 is connect with the voltage input end IN, first filter module
11 output end OUT1 is connect with the input terminal IN1 of the energy supply control module 12；The first of the energy supply control module 12 is defeated
Outlet OUT2 is connect with the first input end IN3 of the voltage control module 13, the second output of the energy supply control module 12
End OUT3 is connect with the second input terminal IN4 of the voltage control module 13；The output end OUT4 of the voltage control module 13
It is connect with the voltage output end OUT；The input terminal IN5 of second filter module 14 is defeated with the voltage control module 13
Outlet OUT4 connections, the output end OUT5 of second filter module 14 are connect with the voltage output end OUT.
It is a kind of circuit structure diagram for supply unit that the utility model embodiment one provides referring to Fig. 3, Fig. 3.
Preferably, first filter module 11 includes the first capacitance C1, the second capacitance C2 and third capacitance C3；Wherein,
The first end of the first capacitance C1 is connect with the input terminal IN2 of first filter module 11, first electricity
Hold the second end ground connection of C1；The first end of the second capacitance C2 is connect with the first end of the first capacitance C1, and described second
The second end of capacitance C2 is grounded；The first end of the third capacitance C3 is connect with the first end of the second capacitance C2, and described
The first end of three capacitance C3 is also connect with the output end OUT1 of first filter module 11, the second end of the third capacitance C3
Ground connection.
Specifically, the voltage of the voltage input end IN is provided by power supply, the power supply can be lithium battery.When the electricity
When pressure input terminal IN has voltage, the voltage of the voltage input end IN flows through first filter module 11, first filtering
Module 11 plays filter action.Preferably, the first capacitance C1, the second capacitance C2 and the third capacitance C3 can be
Ceramic condenser is filtered the voltage of the voltage input end IN, inhibits the fluctuation of voltage, to obtain more smooth steady
DC voltage so that first filter module 11 output voltage more stablize, reduce voltage input end IN institutes band
The ripple interference come.
Preferably, second filter module 14 includes the 4th capacitance C4, the 5th capacitance C5 and the 6th capacitance C6；Wherein,
The first end of the 4th capacitance C4 is connect with the input terminal IN5 of second filter module 14, the 4th electricity
Hold the second end ground connection of C4；The first end of the 5th capacitance C5 is connect with the first end of the 4th capacitance C4, and the described 5th
The second end of capacitance C5 is grounded；The first end of the 6th capacitance C6 is connect with the first end of the 5th capacitance C5, and described
The first end of six capacitance C6 is also connect with the output end OUT5 of second filter module 14, the second end of the 6th capacitance C6
Ground connection.
Specifically, when the voltage that the voltage control module 13 exports passes through second filter module 14, described the
Two filter modules 14 play filter action.Preferably, the 5th capacitance C5, the 6th capacitance C6 and the 7th capacitance C7 can be with
It is ceramic condenser, the voltage exported to the voltage control module 13 is filtered, and inhibits the fluctuation of voltage, to obtain more
The DC voltage of smooth steady reduces the power supply control so that the voltage of second filter module 14 output is more stablized
Ripple caused by module 12 interferes.
Preferably, the energy supply control module 12 includes power supply control chip TPS, inductance L1 and 3rd resistor R3；Wherein,
The 5th pin of the power supply control chip TPS is connect with the input terminal IN1 of the energy supply control module 12, described
The first pin of power supply control chip TPS is connect with the first output end OUT2 of the energy supply control module 12, the power supply control
The tenth pin of coremaking piece TPS is connect with the second output terminal OUT3 of the energy supply control module 12；The first of the inductance L1
End is connect with the 4th pin of the power supply control chip TPS, the second end of the inductance L1 and the power supply control chip TPS
Second pin connection；The first end of the 3rd resistor R3 is connect with the 5th pin of the power supply control chip TPS, described
The second end of 3rd resistor R3 is separately connected the 6th pin, the 7th pin and the 8th pin of the power supply control chip TPS.
Preferably, the voltage control module 13 includes first resistor R1 and second resistance R2；Wherein,
The first end of the first resistor R1 is connect with the first input end IN3 of the voltage control module 13, and described
The first end of one resistance R1 is also connect with the output end OUT4 of the voltage control module 13, the second end of the first resistor R1
It is connect with the second input terminal IN4 of the voltage control module 13；The first end of the second resistance R2 and the first resistor
The second end of R1 connects, the second end ground connection of the second resistance R2.
Specifically, the supply unit is equipped with pre-set target voltage, when the output voltage of the battery is more than
When the target voltage, the 5th pin, the 6th pin and the 7th pin of the power supply control chip TPS obtain high level,
The power supply control chip TPS starts to work.Mode is detected and controlled by the automatic switch of the power supply control chip TPS,
The power supply control chip TPS is set to enter reduced output voltage pattern, it is preferred that the reduced output voltage pattern can be BUCK patterns.
When the output voltage of the battery is less than the target voltage, the 5th pin of the power supply control chip TPS,
6th pin and the 7th pin obtain high level, and the power supply control chip TPS starts to work.Core is controlled by the power supply
The automatic switch of piece TPS detects and controls mode, so that the power supply control chip TPS is entered boosting output mode, it is preferred that institute
It can be BOOST patterns to state boosting output mode.
At this point, no matter the power supply control chip TPS in boosting output mode or reduced output voltage pattern, the power supply
The tenth pin of control chip TPS can export constant voltage, it is preferred that the constant voltage is fixed value 0.5V.Root again
The output voltage of the first pin of the power supply control chip TPS, the output voltage of first pin are found out according to voltage equation
The voltage of the as described voltage output end OUT, the voltage equation are：
VOUT=0.5* (R1/R2+1) formula (1)；
Wherein, VOUT is the target voltage, and 0.5 is the constant voltage, and R1 is the resistance value of the first resistor R1, R2
For the resistance value of the second resistance R2.
The resistance value of the first resistor R1 and the second resistance R2 can be set according to the voltage equation, so that the electricity
Press the voltage of output end OUT equal with the target voltage.Pass through the collocation of energy supply control module 12 and voltage control module 13
Using the voltage of the voltage output end OUT can be made to be in fixed value, the service efficiency of battery is effectively promoted, making for battery is extended
Use the time.
Preferably, the inductance L1 has the function of energy storage afterflow and energy transmission, is the voltage output end of rear end
The voltage of OUT provides required electric current.Preferably, the 3rd resistor R3 is current-limiting resistance.
Preferably, the energy supply control module 12 further includes the 7th capacitance C7, the first end of the 7th capacitance C7 and institute
State the second end connection of 3rd resistor R3, the second end ground connection of the 7th capacitance C7.Specifically, the 7th capacitance C7 can
Reduce the time that the power supply control chip TPS opens normal work.
Preferably, the energy supply control module 12 further includes the 8th capacitance C8, the first end of the 8th capacitance C8 and institute
The first pin connection of power supply control chip TPS is stated, the second end of the 8th capacitance C8 is with the power supply control chip TPS's
Tenth pin connects.Specifically, the 8th capacitance C8 can reinforce the power supply control chip TPS in moment high load condition
Under response time.
Preferably, the power supply control chip TPS can be DC-DC (DC-DC) buck conversion chip, the electricity
Source controls third pin, the 9th pin and the 11st of the model TPS63000, the power supply control chip TPS of chip TPS
Pin is grounded.Preferably, the first pin of the power supply control chip TPS is compensation booster converter output pin, described
The second pin of power supply control chip TPS is connection inductor pin, and the third pin of the power supply control chip TPS is ground connection
Pin, the 4th pin of the power supply control chip TPS are to connect inductor pin, the 5th of the power supply control chip TPS the
Pin is supply voltage input pin, and the 6th pin of the power supply control chip TPS is enable signal input pin, the electricity
The 7th pin that source controls chip TPS is supply voltage controlling switch, and the 9th pin of the power supply control chip TPS is ground connection
Tenth pin of pin, the power supply control chip TPS is feedback pin, the 11st pin of the power supply control chip TPS
For grounding pin.
When it is implemented, receiving the voltage of the voltage input end IN inputs by the energy supply control module 12, and lead to
It crosses the energy supply control module 12 and the voltage control module 13 and voltage stabilizing control is carried out to the voltage of the voltage input end IN,
So that the voltage of the voltage output end OUT is in fixed value.In addition, first filter module 11 and second filter module
14 can also play filter action.
Supply unit disclosed in the utility model embodiment one solves and can not efficiently utilize battery in the prior art
Electric energy, cell voltage is unstable and causes the unstable problem of system operation, can effectively promote the service efficiency of battery, extends
The usage time of battery.
Embodiment two
It is a kind of structural schematic diagram for intelligent lock device that utility model embodiment two provides referring to Fig. 4, Fig. 4.Including electricity
Pond 21, the load of boost module 22, first 23, the load of micro-control unit 25, second 26 and any one of such as above-described embodiment one
The supply unit 24；Wherein,
The voltage input end IN of the supply unit 24 is connect with the battery 21, the voltage output of the supply unit 24
End OUT is connect with the micro-control unit 25；The boost module 22 is separately connected the battery 21 and first load 23；
The micro-control unit is separately connected first load 23 and second load 26.The function of the supply unit 24 refers to
The course of work of above-described embodiment one, details are not described herein.
Preferably, the battery 21 can be lithium battery, and the maximum supply power voltage of the lithium battery is 3.6V；The boosting
Module 22 can be DC-DC (DC-DC) voltage up converting circuit；First load 23 can be that (whole world is mobile by GSM/GPS
Communication system/global positioning system)；Second load 26 can be motor, LED (light emitting diode), switch or sensor；
The micro-control unit 25 can be MCU, wherein the supported maximum supply power voltages of MCU are 3.6V, optimum operating voltage
For 3.3V.Preferably, the target voltage of the supply unit 24 can be set as 3.3V.Preferably, the intelligent lock device can
To apply on bicycle.
When the voltage of the battery 21 is more than the target voltage, the working condition of the supply unit 24 is decompression mould
Formula, so that the output voltage of the supply unit 24 is equal with the target voltage, so that the micro-control unit
25 are operated in optimum state.When the voltage of the battery 21 is less than the target voltage, the work shape of the supply unit 24
State is boost mode, so that the output voltage of the supply unit 24 is equal with the target voltage, so that described
Micro-control unit 25 is operated in optimum state.
When it is implemented, by increasing the supply unit 24 between the battery 21 and the micro-control unit 25,
In the case of the constantly consumption electric energy of the battery 21, the battery 21 still can be that the micro-control unit 25 continues to supply
Electricity extends the usage time of the battery 21 to improve the service efficiency of the battery 21, it is also possible that the intelligence
The service time of energy lock device lengthens, and reduces the cost that enterprise replaces battery.Meanwhile it is the microcontroller to export stable voltage
Unit 25 is powered, and the micro-control unit 25 is made to be in most stable of power supply state, will not be because of the battery 21 not
Stablize the damage for causing circuit module, the maintenance cost of enterprise can be reduced.
Intelligent lock device solves disclosed in the utility model embodiment two can not efficiently utilize battery in the prior art
Electric energy, cell voltage is unstable and causes the unstable problem of system operation, can effectively promote the service efficiency of battery, prolong
The usage time of long battery.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (10)
1. a kind of supply unit, which is characterized in that including：Voltage input end, the first filter module, energy supply control module, voltage
Control module, the second filter module and voltage output end；Wherein,
The input terminal of first filter module is connect with the voltage input end, the output end of first filter module and institute
State the input terminal connection of energy supply control module；
First output end of the energy supply control module is connect with the first input end of the voltage control module, the power supply control
The second output terminal of molding block is connect with the second input terminal of the voltage control module；
The output end of the voltage control module is connect with the voltage output end；
The input terminal of second filter module is connect with the output end of the voltage control module, second filter module
Output end is connect with the voltage output end.
2. supply unit as described in claim 1, which is characterized in that first filter module includes the first capacitance, second
Capacitance and third capacitance；Wherein,
The first end of first capacitance is connect with the input terminal of first filter module, the second termination of first capacitance
Ground；
The first end of second capacitance is connect with the first end of first capacitance, the second end ground connection of second capacitance；
The first end of the third capacitance is connect with the first end of second capacitance, the first end of the third capacitance also with institute
State the output end connection of the first filter module, the second end ground connection of the third capacitance.
3. supply unit as described in claim 1, which is characterized in that second filter module includes the 4th capacitance, the 5th
Capacitance and the 6th capacitance；Wherein,
The first end of 4th capacitance is connect with the input terminal of second filter module, the second termination of the 4th capacitance
Ground；
The first end of 5th capacitance is connect with the first end of the 4th capacitance, the second end ground connection of the 5th capacitance；
The first end of 6th capacitance is connect with the first end of the 5th capacitance, the first end of the 6th capacitance also with institute
State the output end connection of the second filter module, the second end ground connection of the 6th capacitance.
4. supply unit as described in claim 1, which is characterized in that the energy supply control module include power supply control chip,
Inductance and 3rd resistor；Wherein,
5th pin of the power supply control chip is connect with the input terminal of the energy supply control module, the power supply control chip
The first pin connect with the first output end of the energy supply control module, the tenth pin of the power supply control chip with it is described
The second output terminal of energy supply control module connects；
The first end of the inductance is connect with the 4th pin of the power supply control chip, the second end of the inductance and the electricity
Source controls the second pin connection of chip；
The first end of the 3rd resistor is connect with the 5th pin of the power supply control chip, the second end of the 3rd resistor
It is separately connected the 6th pin, the 7th pin and the 8th pin of the power supply control chip.
5. supply unit as described in claim 1, which is characterized in that the voltage control module includes first resistor and second
Resistance；Wherein,
The first end of the first resistor is connect with the first input end of the voltage control module, and the first of the first resistor
End also connect with the output end of the voltage control module, and the of the second end of the first resistor and the voltage control module
Two input terminals connect；
The first end of the second resistance is connect with the second end of the first resistor, the second end ground connection of the second resistance.
6. supply unit as claimed in claim 4, which is characterized in that the energy supply control module further includes the 7th capacitance, institute
The first end for stating the 7th capacitance is connect with the second end of the 3rd resistor, the second end ground connection of the 7th capacitance.
7. supply unit as claimed in claim 4, which is characterized in that the energy supply control module further includes the 8th capacitance, institute
The first end for stating the 8th capacitance is connect with the first pin of the power supply control chip, the second end of the 8th capacitance with it is described
Tenth pin of power supply control chip connects.
8. supply unit as claimed in claim 4, which is characterized in that the model TPS63000 of the power supply control chip,
Third pin, the 9th pin and the 11st pin of the power supply control chip are grounded.
9. a kind of intelligence lock device, which is characterized in that the intelligence lock device includes battery, micro-control unit and such as above-mentioned power
Profit requires 1 to 8 any one of them supply unit；Wherein,
The voltage input end of the supply unit is connect with the battery, the voltage output end of the supply unit and the micro-control
Unit connection processed.
10. intelligence lock device as claimed in claim 9, which is characterized in that the intelligence lock device further includes boost module, the
One load and the second load, wherein
The boost module is separately connected the battery and first load；The micro-control unit is separately connected described first
Load and described second loads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142030.XU CN207939403U (en) | 2018-01-26 | 2018-01-26 | A kind of supply unit and intelligent lock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142030.XU CN207939403U (en) | 2018-01-26 | 2018-01-26 | A kind of supply unit and intelligent lock device |
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| Publication Number | Publication Date |
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| CN207939403U true CN207939403U (en) | 2018-10-02 |
Family
ID=63650434
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| CN201820142030.XU Active CN207939403U (en) | 2018-01-26 | 2018-01-26 | A kind of supply unit and intelligent lock device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289654A (en) * | 2019-06-25 | 2019-09-27 | 深圳市海浦蒙特科技有限公司 | A kind of charger and its charging circuit, charging control circuit |
| CN116131590A (en) * | 2023-04-14 | 2023-05-16 | 北京理工大学 | High-safety power supply device for booster circuit |
-
2018
- 2018-01-26 CN CN201820142030.XU patent/CN207939403U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289654A (en) * | 2019-06-25 | 2019-09-27 | 深圳市海浦蒙特科技有限公司 | A kind of charger and its charging circuit, charging control circuit |
| CN116131590A (en) * | 2023-04-14 | 2023-05-16 | 北京理工大学 | High-safety power supply device for booster circuit |
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