CN109302769A - Intelligent House Light system - Google Patents
Intelligent House Light system Download PDFInfo
- Publication number
- CN109302769A CN109302769A CN201811174881.3A CN201811174881A CN109302769A CN 109302769 A CN109302769 A CN 109302769A CN 201811174881 A CN201811174881 A CN 201811174881A CN 109302769 A CN109302769 A CN 109302769A
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- triode
- diode
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Abstract
The invention discloses a kind of Intelligent House Light systems, including LED lamp, coordinator and monitoring center, LED lamp is built-in with circuit board, temperature sensor, illuminance sensor, infrared sensor, relay circuit, wireless communication module, LED drive circuit and the power module that circuit board is equipped with single-chip microcontroller and connect with single-chip microcontroller, wireless communication module is connect with the coordinator, and coordinator is connect by RS422 interface with monitoring center；Power module includes voltage input end, first resistor, second resistance, the first zener diode, the second zener diode, third diode, 3rd resistor, the first operational amplifier, DC power supply, the first triode, the second triode, first capacitor, the first metal-oxide-semiconductor and voltage output end.Circuit structure of the present invention is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Description
Technical field
The present invention relates to smart home field, in particular to a kind of Intelligent House Light system.
Background technique
The lighting control system of smart home is exactly according to some region of function, time different daily, outdoor in fact
Brightness or the purposes in the region are the foundations of entire smart home from control illumination.Intelligent illuminating system can carry out
It is default, that is, there is a series of function that brightness of illumination is changed into settings.These settings are also referred to as scene, can be by dimmer system
Or central building control system is called automatically.Within the family in use, the form of integrating central controller can be used, and may
With a touch screen interface.
In general, core of the intelligent illuminating system as entire smart home, particularly suitable for large area house,
It will make to live more convenient and comfortable.Lighting control system be divided into stand alone type, specific to room type or large size networked system,
In networked system, lighting network control is mounted in electrical cabinet, the external equipment network being made of such as sensor and control panel
To operate.The advantage of networked system is can to control region in different rooms from many points.It in the family, can be close to main
One control panel is installed, in this, as the Master Node in more outer rooms on the wall of import.The power supply of traditional intelligence lighting system
The component that circuit uses is more, and circuit structure is complicated, and hardware cost is higher, it has not been convenient to safeguard.In addition, since traditional intelligence shines
The power supply circuit of bright system lacks corresponding circuit protection function, such as: current-limiting protection function and interference signal function is prevented, made
It is poor at the safety and reliability of circuit.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, maintains easily, the higher Intelligent House Light system of the safety and reliability of circuit.
The technical solution adopted by the present invention to solve the technical problems is: a kind of Intelligent House Light system is constructed, including
LED lamp, coordinator and monitoring center, the LED lamp are built-in with circuit board, and the circuit board is equipped with single-chip microcontroller, temperature
Sensor, illuminance sensor, infrared sensor, relay circuit, wireless communication module, LED drive circuit and power module,
The temperature sensor, illuminance sensor, infrared sensor, relay circuit, wireless communication module, LED drive circuit and
Power module is connect with the single-chip microcontroller, and the wireless communication module is connect with the coordinator, and the coordinator passes through
RS422 interface is connect with the monitoring center；
The power module includes voltage input end, first resistor, second resistance, the first zener diode, the second pressure stabilizing
Diode, third diode, 3rd resistor, the first operational amplifier, DC power supply, the first triode, the second triode, first
Capacitor, the first metal-oxide-semiconductor and voltage output end, the voltage input end anode respectively with one end of the first resistor, third
The anode connection of the anode of diode and voltage output end, the other end of the first resistor respectively with the second resistance one
End is connected with the inverting input terminal of the first operational amplifier, the cathode of the other end of the second resistance and the voltage input end
Connection, the cathode of the third diode respectively with the cathode of first zener diode, one end of 3rd resistor, direct current
The collector in source, the power end of the first operational amplifier and the first triode connects, the other end of the 3rd resistor respectively with
The non-inverting input terminal connection of the cathode and the first operational amplifier of second zener diode, second zener diode
The ground terminal of anode, the anode of the first zener diode and the first operational amplifier connects with the other end of the second resistance
It connects, the output end of first operational amplifier connects with the base stage of first triode and the base stage of the second triode respectively
It connects, the emitter of first triode is connect with one end of the emitter of second triode and first capacitor respectively, institute
The other end for stating first capacitor is connect with the grid of first metal-oxide-semiconductor, the collector of second triode respectively with it is described
The connection of the source electrode of the ground terminal of first operational amplifier and the first metal-oxide-semiconductor, the drain electrode and the voltage output of first metal-oxide-semiconductor
The cathode at end connects, the model S-202T of the third diode, and the capacitance of the first capacitor is 360pF.
In Intelligent House Light system of the present invention, the power module further includes the 4th diode, and described
The anode of four diodes is connect with the DC power supply, the cathode of the 4th diode and the collector of first triode
Connection, the model E-101L of the 4th diode.
In Intelligent House Light system of the present invention, the power module further includes the 5th diode, and described
The anode of five diodes is connect with the output end of first operational amplifier, the cathode of the 5th diode respectively with it is described
The base stage of first triode is connected with the base stage of the second triode, the model L-1822 of the 5th diode.
In Intelligent House Light system of the present invention, the power module further includes the 4th resistance, and the described 4th
One end of resistance is connect with the collector of second triode, the other end and first metal-oxide-semiconductor of the 4th resistance
Source electrode connection, the resistance value of the 4th resistance are 43k Ω.
In Intelligent House Light system of the present invention, first triode be NPN type triode, described second
Triode is PNP type triode, and first metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
In Intelligent House Light system of the present invention, the wireless communication module be bluetooth module, WIFI module,
Gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or
LoRa module.
Implement Intelligent House Light system of the invention, has the advantages that due to being equipped with LED lamp, coordinator
And monitoring center, LED lamp are built-in with circuit board, circuit board is equipped with single-chip microcontroller, temperature sensor, illuminance sensor, red
Outer sensor, relay circuit, wireless communication module, LED drive circuit and power module, power module include voltage input
End, first resistor, second resistance, the first zener diode, the second zener diode, third diode, 3rd resistor, the first fortune
Calculate amplifier, DC power supply, the first triode, the second triode, first capacitor, the first metal-oxide-semiconductor and voltage output end, the power supply
For module relative to traditional intelligence lighting system, the component used is less, due to saving some components, can drop in this way
Low hardware cost, in addition, third diode is for carrying out current-limiting protection, first capacitor is for preventing the first triode, the two or three
Interference between pole pipe and the first metal-oxide-semiconductor, therefore circuit structure is relatively simple, cost is relatively low, maintains easily, the safety of circuit
It is higher with reliability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in Intelligent House Light system one embodiment of the present invention；
Fig. 2 is the circuit diagram of power module in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In Intelligent House Light system embodiment of the present invention, the structural schematic diagram of the Intelligent House Light system such as Fig. 1
It is shown.In Fig. 1, which includes LED lamp 1, coordinator 2 and monitoring center 3, and LED lamp 1 is built-in with electricity
Road plate, circuit board are equipped with single-chip microcontroller 11, temperature sensor 12, illuminance sensor 13, infrared sensor 14, relay circuit
15, wireless communication module 16, LED drive circuit 17 and power module 18, wherein temperature sensor 12, illuminance sensor 13,
Infrared sensor 14, relay circuit 15, wireless communication module 16, LED drive circuit 17 and power module 18 are and single-chip microcontroller
11 connections, wireless communication module 16 are connect with coordinator 2, and coordinator 2 is connect by RS422 interface with monitoring center 3.
Specifically, LED lamp 1 is used as an intelligentized equipment, it is not only light emitting source, while being the control of light source
Device.LED lamp 1, which is mainly responsible for, carries out information transmission and intelligent lighting controls with coordinator 2.Temperature sensor 12 is responsible for detection
The temperature of LED lamp 1 provides data foundation for the overheat protector of LED lamp 1.Illuminance sensor 13 is responsible for acquisition environment and is shone
Degree provides data foundation for permanent illumination illumination.Under energy-saving illumination mode, infrared sensor 14 is responsible for the people in induction range
Member's situation is detected, if detecting personal information, this information is fed back to single-chip microcontroller 11, single-chip microcontroller 11 is by relay
The switch control to LED lamp 1 is realized in the control of device circuit 15.Temperature sensor 12 passes the temperature of the LED lamp 1 of acquisition
Single-chip microcontroller 11 is given, illuminance sensor 13 gives the ambient light illumination of acquisition to single-chip microcontroller 11, and single-chip microcontroller 11 carries out it accordingly
Processing, then module 16 sends data information to coordinator 2 by wireless communication.
In the present embodiment, wireless communication module 16 can for bluetooth module, WIFI module, gsm module, GPRS module,
CDMA module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or LoRa module etc..Pass through setting
Various wireless communication mode can not only increase the flexibility of communication, moreover it is possible to meet different user and different occasions
Demand.When in particular by LoRa module, farther out, and communication performance is relatively stable for communication distance, is suitable for communication matter
Measure more demanding occasion.
LED drive circuit 17 changes the size of output electric current according to the pwm control signal that single-chip microcontroller 11 exports, and then realizes
Adjusting to 1 brightness of LED lamp, single-chip microcontroller 11 by detection feedback voltage signal, judge LED lamp 1 whether failure.Coordinate
Device 2 receives the data information and status information that LED lamp 1 uploads, and information is stored.When coordinator 2 receives in monitoring
When the data request command of the heart 3, data are uploaded to by monitoring center 3 by RS422 interface.Coordinator 2 is connect by RS422 interface
The control command that monitoring center 3 is sent is received, coordinator 2 controls LED lamp 1 according to control command.Coordinator 2 can take off
It works independently from monitoring center 3, before receiving new control command, realizes according to control model before to LED terminal
The Lighting control of node 3.The communications status of LED lamp 1 is monitored in addition, coordinator 2 also has, if there is communication event
Communication failure information, then is uploaded to the function of monitoring center 3 by barrier.
In monitoring center 3, administrator passes through RS422 interface according to demand and sends control command to coordinator 2, completes illumination
The setting of mode and relevant parameter, coordinator 2 realize the Lighting control to LED lamp 1.It can also be looked into real time in monitoring center 3
Ambient light illumination, light illumination mode and the working condition for asking LED lamp 1, can also inquire the relevant historical data of LED lamp 1.If
1 operation irregularity of LED lamp, monitoring center 3 issue alarm signal, notify user's on-call maintenance.
Fig. 2 is the circuit diagram of power module in the present embodiment, and in Fig. 2, which includes voltage input end
Vin, first resistor R1, second resistance R2, the first zener diode D1, the second zener diode D2, third diode D3, third
Resistance R3, the first operational amplifier U1, DC power supply VCC, the first triode, the second triode, first capacitor, the first metal-oxide-semiconductor
With voltage output end Vo, voltage input end Vin anode respectively with one end of first resistor R1, third diode D3 anode and
Voltage output end Vo anode connection, the other end of first resistor R1 respectively with one end of second resistance R2 and the first operation amplifier
The inverting input terminal of device U1 connects, and the other end of second resistance R2 is connect with the cathode of voltage input end Vin, third diode D3
Cathode respectively with the cathode of the first zener diode D1, one end of 3rd resistor R3, DC power supply VCC, the first operation amplifier
The collector of the power end of device U1 and the first triode Q1 connection, the other end of 3rd resistor R3 respectively with the second zener diode
The connection of the non-inverting input terminal of the cathode of D2 and the first operational amplifier U1, the anode of the second zener diode D2, the first pressure stabilizing two
The ground terminal of the anode of pole pipe D1 and the first operational amplifier U1 are connect with the other end of second resistance R2, the first operation amplifier
The output end of device U1 is connect with the base stage of the base stage of the first triode Q1 and the second triode Q2 respectively, the hair of the first triode Q1
Emitter-base bandgap grading is connect with one end of the emitter of the second triode Q2 and first capacitor C1 respectively, the other end of first capacitor C1 and first
The grid of metal-oxide-semiconductor M1 connects, the collector of the second triode Q2 respectively with the ground terminal and the first MOS of the first operational amplifier U1
The source electrode of pipe M1 connects, and the drain electrode of the first metal-oxide-semiconductor M1 is connect with the cathode of voltage output end Vo.
The power module 18 is relative to traditional intelligence lighting system, and the component used is less, and circuit structure is more simple
It is single, it maintains easily, due to saving some components, hardware cost can be reduced in this way.In addition, third diode D3 is current limliting
Diode, for carrying out current-limiting protection；First capacitor C1 is coupled capacitor, for preventing the first triode Q1, the second triode
Interference between Q2 and the first metal-oxide-semiconductor M1, therefore the safety and reliability of circuit is higher.It is noted that the present embodiment
In, the capacitance of the model S-202T of third diode D3, first capacitor C1 are 360pF, certainly, in practical applications, the
Three diode D3 can have the diode of similar functions using other models, and the capacitance of first capacitor C1 can be according to specific
Situation adjusts accordingly, that is, the capacitance of first capacitor C1 can be increased accordingly or be reduced as the case may be.
Supply voltage under normal circumstances, electric current is by third diode D3 to the first zener diode D1, DC power supply
VCC provides supply voltage to the first operational amplifier U1, and the first operational amplifier U1 is worked normally, at this time the second zener diode
D2 provides fixed voltage V1 to the non-inverting input terminal of the first operational amplifier U1, and the pressure drop V2 of second resistance R2 is the first operation
The level of the inverting input terminal of amplifier U1, due to V2 < V1, the first operational amplifier U1 forward conduction exports high level,
Base level is provided to the first triode Q1 and the second triode Q2 composition amplification driving circuit, the first triode Q1 is connected, the
Two triode Q2 cut-off, thus driving the first metal-oxide-semiconductor M1 conducting, the current supply circuit conducting of power supply.
When supply voltage over-voltage, divided since resistance first resistor R1 and second resistance R2 connects, at this time second resistance
The pressure drop of R2 increases, i.e. V2 is increased, and V1 is due to the second zener diode D2 pressure stabilizing, and V1 is remained unchanged, and is greater than when V2 is increased to
When V1, the first operational amplifier U1 reverse-conducting exports low level, the first triode Q1 cut-off, the second triode Q2
Thus conducting, the first metal-oxide-semiconductor M1 end, the current supply circuit of power supply is cut off, so that power circuit be protected not damaged by high voltage.
When supply voltage restores normal, the pressure drop V2 of second resistance R2 decreases below V1, the first operational amplifier U1
Restore to the state of forward conduction, the first operational amplifier U1 exports high level, the first triode Q1 conducting, the second triode Q2
Cut-off, so that driving the first metal-oxide-semiconductor M1 conducting, the current supply circuit of power supply restore conducting.
In the present embodiment, the first triode Q1 be NPN type triode, the second triode Q2 be PNP type triode, first
Metal-oxide-semiconductor M1 is P-channel metal-oxide-semiconductor.Certainly, in practical applications, the first triode Q1 may be PNP type triode, and the two or three
Pole pipe Q2 may be NPN type triode, and the first metal-oxide-semiconductor M1 may be N-channel MOS pipe, but at this moment the structure of circuit is also wanted
Accordingly change.
In the present embodiment, which further includes the 4th diode D4, the anode and direct current of the 4th diode D4
Source VCC connection, the cathode of the 4th diode D4 are connect with the collector of the first triode Q1.4th diode D4 is two pole of current limliting
Pipe carries out current-limiting protection for the collector current to the first triode Q1, to further enhance the safety of circuit and reliable
Property.It is noted that in the present embodiment, the model E-101L of the 4th diode D4, certainly, in practical applications, the 4th
Diode D4 can also have the diode of similar functions using other models.
In the present embodiment, which further includes the 5th diode D5, the anode of the 5th diode D5 and the first fortune
Calculate amplifier U1 output end connection, the cathode of the 5th diode D5 respectively with the base stage and the second triode of the first triode Q1
The base stage of Q2 connects.5th diode D5 is Current Limiting Diodes, for carrying out current-limiting protection, further to enhance the peace of circuit
Full property and reliability.It is noted that the model L-1822 of the 5th diode D5 is actually being answered certainly in the present embodiment
In, the 5th diode D5 can also have the diode of similar functions using other models.
In the present embodiment, which further includes the 4th resistance R4, one end of the 4th resistance R4 and the second triode
The collector of Q2 connects, and the other end of the 4th resistance R4 is connect with the source electrode of the first metal-oxide-semiconductor M1.4th resistance R4 is limited galvanic electricity
Resistance carries out current-limiting protection for the emitter current to the second triode Q2, to further enhance current limitation effect.It is worth mentioning
It is that in the present embodiment, the resistance value of the 4th resistance R4 is 43k Ω, certainly, in practical applications, the resistance value of the 4th resistance R4 can be with
Adjust accordingly as the case may be, that is, the 4th resistance R4 resistance value can be increased accordingly as the case may be or
Reduce.
In the present embodiment, single-chip microcontroller 11, temperature sensor 12, illuminance sensor 13, infrared sensor 14, relay electricity
Road 15 and LED drive circuit 17 are all made of the arbitrary structures that can be realized its function in the prior art, and no longer large fierce dog is stated here.
In short, in the present embodiment, the power module 18 relative to traditional intelligence lighting system, the component that uses compared with
Few, circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.In addition,
Current Limiting Diodes and coupled capacitor are equipped in the power module 18, therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of Intelligent House Light system, which is characterized in that including LED lamp, coordinator and monitoring center, the LED light
Tool is built-in with circuit board, and the circuit board is equipped with single-chip microcontroller, temperature sensor, illuminance sensor, infrared sensor, relay
Device circuit, wireless communication module, LED drive circuit and power module, the temperature sensor, illuminance sensor, infrared biography
Sensor, relay circuit, wireless communication module, LED drive circuit and power module are connect with the single-chip microcontroller, described wireless
Communication module is connect with the coordinator, and the coordinator is connect by RS422 interface with the monitoring center；
The power module includes voltage input end, first resistor, second resistance, the first zener diode, two pole of the second pressure stabilizing
Pipe, third diode, 3rd resistor, the first operational amplifier, DC power supply, the first triode, the second triode, the first electricity
Hold, the first metal-oxide-semiconductor and voltage output end, the anode of the voltage input end respectively with one end of the first resistor, the three or two
The anode connection of the anode of pole pipe and voltage output end, the other end of first resistor one end with the second resistance respectively
It is connected with the inverting input terminal of the first operational amplifier, the cathode of the other end of the second resistance and the voltage input end connects
Connect, the cathode of the third diode respectively with the cathode of first zener diode, one end of 3rd resistor, direct current
The collector in source, the power end of the first operational amplifier and the first triode connects, the other end of the 3rd resistor respectively with
The non-inverting input terminal connection of the cathode and the first operational amplifier of second zener diode, second zener diode
The ground terminal of anode, the anode of the first zener diode and the first operational amplifier connects with the other end of the second resistance
It connects, the output end of first operational amplifier connects with the base stage of first triode and the base stage of the second triode respectively
It connects, the emitter of first triode is connect with one end of the emitter of second triode and first capacitor respectively, institute
The other end for stating first capacitor is connect with the grid of first metal-oxide-semiconductor, the collector of second triode respectively with it is described
The connection of the source electrode of the ground terminal of first operational amplifier and the first metal-oxide-semiconductor, the drain electrode and the voltage output of first metal-oxide-semiconductor
The cathode at end connects, the model S-202T of the third diode, and the capacitance of the first capacitor is 360pF.
2. Intelligent House Light system according to claim 1, which is characterized in that the power module further includes the four or two
The anode of pole pipe, the 4th diode is connect with the DC power supply, the cathode and the described 1st of the 4th diode
The collector of pole pipe connects, the model E-101L of the 4th diode.
3. Intelligent House Light system according to claim 2, which is characterized in that the power module further includes the five or two
The anode of pole pipe, the 5th diode is connect with the output end of first operational amplifier, the yin of the 5th diode
Pole is connect with the base stage of the base stage of first triode and the second triode respectively, the model L- of the 5th diode
1822。
4. Intelligent House Light system according to claim 3, which is characterized in that the power module further includes the 4th electricity
Resistance, one end of the 4th resistance connect with the collector of second triode, the other end of the 4th resistance with it is described
The source electrode of first metal-oxide-semiconductor connects, and the resistance value of the 4th resistance is 43k Ω.
5. Intelligent House Light system according to any one of claims 1 to 4, which is characterized in that the one or three pole
Pipe is NPN type triode, and second triode is PNP type triode, and first metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
6. Intelligent House Light system according to any one of claims 1 to 4, which is characterized in that the wireless communication
Module is bluetooth module, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-
SCDMA module, Zigbee module or LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174881.3A CN109302769A (en) | 2018-10-09 | 2018-10-09 | Intelligent House Light system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174881.3A CN109302769A (en) | 2018-10-09 | 2018-10-09 | Intelligent House Light system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109302769A true CN109302769A (en) | 2019-02-01 |
Family
ID=65161993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174881.3A Withdrawn CN109302769A (en) | 2018-10-09 | 2018-10-09 | Intelligent House Light system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109302769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110664306A (en) * | 2019-08-29 | 2020-01-10 | 苏州力神能源科技有限公司 | Battery pack control system |
-
2018
- 2018-10-09 CN CN201811174881.3A patent/CN109302769A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110664306A (en) * | 2019-08-29 | 2020-01-10 | 苏州力神能源科技有限公司 | Battery pack control system |
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Application publication date: 20190201 |