CN209608903U - A kind of invariable power circuit for solar lamp controller - Google Patents
A kind of invariable power circuit for solar lamp controller Download PDFInfo
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- CN209608903U CN209608903U CN201822119708.5U CN201822119708U CN209608903U CN 209608903 U CN209608903 U CN 209608903U CN 201822119708 U CN201822119708 U CN 201822119708U CN 209608903 U CN209608903 U CN 209608903U
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Abstract
The utility model belongs to solar street lamp controller field, specifically devise it is a kind of from the invariable power circuit of solar street lamp controller in order to solve the problems, such as it is existing need to generate different controllers to be adapted to Solar lamp, this is practical newly propose it is a kind of can be with the solar lamp controller of constant power output.The utility model is the technical scheme adopted is that a kind of invariable power circuit for solar lamp controller, including power module, LED lamp panel and control module, further includes: battery discharge control circuit is electrically connected with power module；Input current sample circuit is electrically connected with battery discharge control module；LED drive circuit is electrically connected with input current sample circuit；Output module sample circuit, is electrically connected with LED drive circuit.
Description
Technical field
The utility model belongs to solar street lamp controller field, specifically devises a kind of and solar street lamp controller
Invariable power circuit.
Background technique
There is the controller of more Solar lamp in the market recently, what most number controller was output to load is all permanent electricity
Stream output.Since the LED series-parallel system of the load of various LED light is different, cause the voltage of LED light different.Cause to control
The output power of device is also very different.The major defect of existing product: for same set of battery system, when in order to guarantee electric discharge
Between；For the LED light of different voltages, the controller of output electric current not of the same race is needed.Increase the model of controller.
Utility model content
In order to solve the problems, such as it is above-mentioned need to generate different controllers to be adapted to Solar lamp, this is practical newly to mention
Having gone out one kind can be with the solar lamp controller of constant power output.
To achieve the goals above, the utility model is the technical scheme adopted is that a kind of be used for solar lamp controller
Invariable power circuit, including power module, LED lamp panel and control module, further includes: battery discharge control circuit, with power supply mould
Block electrical connection；Input current sample circuit is electrically connected with battery discharge control module；LED drive circuit is sampled with input current
Circuit electrical connection；Output module sample circuit, is electrically connected with LED drive circuit.
Preferably, the battery discharge control circuit are as follows: the first termination positive pole of capacitor C1, the of capacitor C1
The first end of the second end of two terminating resistor R1, resistance R1 is connect with the source electrode of MOS pipe Q2；The second end and metal-oxide-semiconductor of resistance R1
The grid of Q2 connects, and the drain electrode of MOS pipe Q2 is connect with No. 1 connecting line；The first end of resistance R4 and the second end of resistance R1 connect
It connecing, the second end of resistance R4 is connect with the collector of triode Q1, and the base stage of triode Q1 is connect with the second end of resistance R2, and three
The emitter of pole pipe Q1 is connect with No. 2 connecting lines；The first end of resistance R2 is connect with anode voltage input terminal；The second of resistance R2
End is connect with the first end of resistance R3；The second end of resistance R3 is connect with power cathode, the second end and triode Q1 of resistance R3
Emitter connection.
Preferably, the input current sample circuit are as follows: the first end of resistance R7 and the 2 of battery discharge control circuit
The connection of number connecting line, the second end of resistance R7 are connect with No. 3 connecting lines；The first end of resistance R8 and the first end of resistance R7 connect
It connects, the second end of resistance R8 is connect with the second end of resistance R7；The first end of resistance R6 is connect with the first end of resistance R7, electricity
The second end of resistance R6 is connect with the second end of resistance R7；The first end of resistance R5 is connect with the first end of resistance R7, resistance R5's
Second end is connect with the second end of resistance R7；The first end of resistance R9 is connect with the first end of resistance R7, the second end of resistance R9
It is connect with the feedback end of control module.
Preferably, the LED drive circuit includes: the boost in voltage controller U4 of model AL3022；LED driving
The circuit of circuit are as follows: the first end of capacitor C2 is connect with No. 1 connecting line of battery discharge control circuit, the second end of capacitor C2 with
No. 3 connecting lines of input sampling circuit connect；The first end of inductance L1 is connect with the first end of capacitor C2, the second end of inductance L1
It is connect with the anode of diode D1, the cathode of diode D1 is connect with No. 4 connecting lines；The first end of resistance R10 is with capacitor C2's
First end connection, the second end of resistance R10 connect with the base stage of triode Q4, and the of the collector of triode Q4 and resistance R10
One end connection, the emitter of triode Q4 and the No.1 pin of U4 connect；The cathode of zener diode Z1 and the second of resistance R10
End connection, the anode of zener diode Z1 are connect with the second end of capacitor C2；The first end of capacitor C3 and the No.1 pin of U4 connect
It connects, the second end of capacitor C3 is connect with the anode of zener diode Z1；No. 2 pin skies of U4 connect, No. 3 pins and resistance C3 of U4
Second end connection；No. 4 pins of U4 are connect with the first end of capacitor C4, the second end of capacitor C4 and the second end of capacitor C3
Connection；The first end of resistance R11 is connect with the first end of capacitor C4, and the second end of resistance R11 and the chip select terminal of control module connect
It connects；No. 5 pins of U4 and the feedback end of control module connect, and the first end of resistance C5 and No. 5 pins of U4 connect, capacitor C5
Second end connect with the second end of capacitor C4；No. 6 pins of U4 are connect with the first end of capacitor C6, the second end of capacitor C6 with
The first end of resistance R13 connects, and the second end of resistance R13 is connect with the second end of capacitor C5；The first end and capacitor of capacitor C7
The first end of C6 connects, and the second end of capacitor C7 is connect with the second end of resistance R13；No. 7 pin skies of U4 connect, and No. 8 of U4 are drawn
Foot is connect with the first end of resistance R12, and the second end of resistance R12 is connect with the first end of capacitor C8, the second end of capacitor C8 with
The second end connection of capacitor C7 while the second end ground connection of capacitor C8；The source electrode of metal-oxide-semiconductor Q3 is connect with the anode of diode D1；
The grid of metal-oxide-semiconductor Q3 is connect with the second end of resistance R17, and the drain electrode of metal-oxide-semiconductor Q3 is connect with the first end of resistance R16；Resistance
The first end of R17 is connect with the cathode of diode D2, and the anode of diode D2 is connect with the second end of resistance R17；Resistance R16
Second end connect with LED lamp panel；The first end of resistance R15 is connect with the first end of resistance R16, the second end of resistance R15 with
The second end of resistance R16 connects；The first end of resistance R14 connect with the first end of resistance R15 simultaneously the first end of resistance R14 with
The second end of resistance R17 connects and the chip select terminal double hit of the first end and control module of resistance R14；The second end of resistance R14
It is connect with the second end of resistance R15.
Preferably, the output module sample circuit are as follows: the first end of resistance R18 and No. 4 companies of LED drive circuit
Wiring connection, the second end of resistance R18 are connect with the first end of resistance R17, the first end of resistance R17 and the first end of capacitor C9
Connection, the second end of resistance R17 are connect with the second end of capacitor C9, the second end ground connection of capacitor C9；The anode of polar capacitor CE1
It is connect with the first end of resistance R18, the cathode of polar capacitor CE1 is connect with the second end of resistance R17, while polar capacitor CE1
Anode connect with LED point lamp plate.
The utility model has the beneficial effects that (1) present invention uses power limitation control, it can be ensured that (same with a controller
One configuration parameter) and same set of battery pack, it is suitable for output LED light voltage (15V-55V), keeps output power and battery
Discharge time is constant.(2) the SKU quantity that can greatly reduce controller in this way, greatly improves the general of solar lamp controller
Property.(3) in material procurement, production efficiency, friendship phase and warehouse cost etc. can bring economic benefit.
Detailed description of the invention
Fig. 1: battery discharge control circuit
Fig. 2: input current sample circuit
Fig. 3: LED drive circuit
Fig. 4: output voltage sampling circuit
Specific embodiment
Embodiment
A kind of invariable power circuit for solar lamp controller, including power module, LED lamp panel and control module, also
Include: battery discharge control circuit, is electrically connected with power module；Input current sample circuit, with battery discharge control module electricity
Connection；LED drive circuit is electrically connected with input current sample circuit；Output module sample circuit, is electrically connected with LED drive circuit
It connects.Preferably, the battery discharge control circuit are as follows: the first termination positive pole of capacitor C1, the second end of capacitor C1
The first end of the second end of connecting resistance R1, resistance R1 is connect with the source electrode of MOS pipe Q2；The second end of resistance R1 is with metal-oxide-semiconductor Q2's
Grid connection, the drain electrode of MOS pipe Q2 are connect with No. 1 connecting line；The first end of resistance R4 is connect with the second end of resistance R1, electricity
The second end of resistance R4 is connect with the collector of triode Q1, and the base stage of triode Q1 is connect with the second end of resistance R2, triode
The emitter of Q1 is connect with No. 2 connecting lines；The first end of resistance R2 is connect with anode voltage input terminal；The second end of resistance R2 with
The first end of resistance R3 connects；The second end of resistance R3 is connect with power cathode, the second end of resistance R3 and the hair of triode Q1
Emitter-base bandgap grading connection.
The input current sample circuit are as follows: the first end of resistance R7 and No. 2 connecting lines of battery discharge control circuit
Connection, the second end of resistance R7 are connect with No. 3 connecting lines；The first end of resistance R8 is connect with the first end of resistance R7, resistance R8
Second end connect with the second end of resistance R7；The first end of resistance R6 is connect with the first end of resistance R7, and the second of resistance R6
End is connect with the second end of resistance R7；The first end of resistance R5 is connect with the first end of resistance R7, the second end and electricity of resistance R5
Hinder the second end connection of R7；The first end of resistance R9 is connect with the first end of resistance R7, the second end and control module of resistance R9
Feedback end connection.The LED drive circuit includes: the boost in voltage controller U4 of model AL3022；LED driving electricity
The circuit on road are as follows: the first end of capacitor C2 is connect with No. 1 connecting line of battery discharge control circuit, the second end of capacitor C2 with it is defeated
Enter No. 3 connecting lines connection of sample circuit；The first end of inductance L1 is connect with the first end of capacitor C2, the second end of inductance L1 with
The anode of diode D1 connects, and the cathode of diode D1 is connect with No. 4 connecting lines；The of the first end of resistance R10 and capacitor C2
One end connection, the second end of resistance R10 are connect with the base stage of triode Q4, the collector of triode Q4 and the first of resistance R10
End connection, the emitter of triode Q4 and the No.1 pin of U4 connect；The cathode of zener diode Z1 and the second of resistance R10
End connection, the anode of zener diode Z1 are connect with the second end of capacitor C2；The first end of capacitor C3 and the No.1 pin of U4 connect
It connects, the second end of capacitor C3 is connect with the anode of zener diode Z1；No. 2 pin skies of U4 connect, No. 3 pins and resistance of U4
The second end of C3 connects；No. 4 pins of U4 are connect with the first end of capacitor C4, the second end of capacitor C4 and the second end of capacitor C3
Connection；The first end of resistance R11 is connect with the first end of capacitor C4, and the second end of resistance R11 and the chip select terminal of control module connect
It connects；No. 5 pins of U4 and the feedback end of control module connect, and the first end of resistance C5 and No. 5 pins of U4 connect, capacitor C5's
Second end is connect with the second end of capacitor C4；No. 6 pins of U4 are connect with the first end of capacitor C6, the second end of capacitor C6 with
The first end of resistance R13 connects, and the second end of resistance R13 is connect with the second end of capacitor C5；The first end and capacitor of capacitor C7
The first end of C6 connects, and the second end of capacitor C7 is connect with the second end of resistance R13；No. 7 pin skies of U4 connect, and No. 8 of U4 are drawn
Foot is connect with the first end of resistance R12, and the second end of resistance R12 is connect with the first end of capacitor C8, the second end of capacitor C8 with
The second end connection of capacitor C7 while the second end ground connection of capacitor C8；The source electrode of metal-oxide-semiconductor Q3 is connect with the anode of diode D1；
The grid of metal-oxide-semiconductor Q3 is connect with the second end of resistance R17, and the drain electrode of metal-oxide-semiconductor Q3 is connect with the first end of resistance R16；Resistance R17
First end connect with the cathode of diode D2, the anode of diode D2 is connect with the second end of resistance R17；The of resistance R16
Two ends are connect with LED lamp panel；The first end of resistance R15 is connect with the first end of resistance R16, the second end and resistance of resistance R15
The second end of R16 connects；The first end of resistance R14 connect the first end and resistance of resistance R14 simultaneously with the first end of resistance R15
The second end of R17 connects and the chip select terminal double hit of the first end and control module of resistance R14；The second end and electricity of resistance R14
Hinder the second end connection of R15.
The output module sample circuit are as follows: the first end of resistance R18 and No. 4 connecting lines of LED drive circuit connect
It connecing, the second end of resistance R18 is connect with the first end of resistance R17, and the first end of resistance R17 is connect with the first end of capacitor C9,
The second end of resistance R17 is connect with the second end of capacitor C9, the second end ground connection of capacitor C9；The anode of polar capacitor CE1 and electricity
The first end connection of R18 is hindered, the cathode of polar capacitor CE1 is connect with the second end of resistance R17, while polar capacitor CE1 is just
Pole is connect with LED point lamp plate.
The present invention uses power limitation control, it can be ensured that with a controller (the same configuration parameter) and same set of
Battery pack is suitable for output LED light voltage (15V-55V), keeps output power and battery discharge time constant.It in this way can be big
The big SKU quantity for reducing controller, greatly improves the versatility of solar lamp controller.In material procurement, production efficiency hands over the phase
Economic benefit can be brought with warehouse cost etc..
Input current sample circuit detects the discharge current of battery, input power (Pin)=cell voltage x of controller
Battery discharge current；The output power (Po) of controller=efficiency x Pin.As long as therefore keeping battery discharge current constant,
It may insure that output power is constant.When MOSFET (Q3) conducting, inductance (L1) carries out power storage；It is cut at MOSFET (Q2)
To when, inductance (L1) by diode (D1) as LED load discharge.MOSFET (Q3) HF switch, just there is current direction LED
The size of lamp, electric current is determined by the duty ratio of MOSFET (Q3).
The chip of controller detects input current by output voltage sampling circuit, is sampled by output voltage detecting circuit
LED light voltage；Then the duty ratio for adjusting MOSFET (Q3) reaches constant power output to keep battery discharge current constant
Control purpose.
Several technical terms used in the utility model are intended merely to facilitate description, do not constitute to the utility model
Limitation, the utility model is not limited to above-described preferable embodiment, is based on those skilled in the art institute
The well-known technique or use that can be known are capable of the various modifications of equivalence replacement and the embodiment of change in the prior art,
All spirit or technical concept based on the utility model, should be included within the scope of protection of this utility model.
Claims (1)
1. a kind of invariable power circuit for solar lamp controller, including power module, LED lamp panel and control module, special
Sign is, further includes:
Battery discharge control circuit, is electrically connected with power module；
Input current sample circuit is electrically connected with battery discharge control module；
LED drive circuit is electrically connected with input current sample circuit；
Output module sample circuit, is electrically connected with LED drive circuit；
The LED drive circuit includes: the boost in voltage controller U4 of model AL3022；
The circuit of LED drive circuit are as follows: the first end of capacitor C2 is connect with No. 1 connecting line of battery discharge control circuit, capacitor
The second end of C2 and No. 3 connecting lines of input sampling circuit connect；The first end of inductance L1 is connect with the first end of capacitor C2, electricity
The second end of sense L1 is connect with the anode of diode D1, and the cathode of diode D1 is connect with No. 4 connecting lines；The first of resistance R10
End connect with the first end of capacitor C2, the second end of resistance R10 is connect with the base stage of triode Q4, the collector of triode Q4 and
The first end of resistance R10 connects, and the emitter of triode Q4 and the No.1 pin of U4 connect；The cathode and electricity of zener diode Z1
The second end connection of R10 is hindered, the anode of zener diode Z1 is connect with the second end of capacitor C2；The first end of capacitor C3 and U4's
The connection of No.1 pin, the second end of capacitor C3 are connect with the anode of zener diode Z1；No. 2 pin skies of U4 connect, and No. 3 of U4 are drawn
Foot is connect with the second end of resistance C3；No. 4 pins of U4 are connect with the first end of capacitor C4, the second end and capacitor C3 of capacitor C4
Second end connection；The first end of resistance R11 is connect with the first end of capacitor C4, the second end of resistance R11 and control module
Chip select terminal connection；No. 5 pins of U4 and the feedback end of control module connect, and the first end of resistance C5 and No. 5 pins of U4 connect,
The second end of capacitor C5 is connect with the second end of capacitor C4；No. 6 pins of U4 are connect with the first end of capacitor C6, and the of capacitor C6
Two ends are connect with the first end of resistance R13, and the second end of resistance R13 is connect with the second end of capacitor C5；The first end of capacitor C7
It is connect with the first end of capacitor C6, the second end of capacitor C7 is connect with the second end of resistance R13；No. 7 pin skies of U4 connect, U4's
No. 8 pins are connect with the first end of resistance R12, and the second end of resistance R12 is connect with the first end of capacitor C8, and the second of capacitor C8
End connect the second end ground connection of capacitor C8 simultaneously with the second end of capacitor C7；The source electrode of metal-oxide-semiconductor Q3 and the anode of diode D1 connect
It connects；The grid of metal-oxide-semiconductor Q3 is connect with the second end of resistance R17, and the drain electrode of metal-oxide-semiconductor Q3 is connect with the first end of resistance R16；Resistance
The first end of R17 is connect with the cathode of diode D2, and the anode of diode D2 is connect with the second end of resistance R17；
The second end of resistance R16 is connect with LED lamp panel；The first end of resistance R15 is connect with the first end of resistance R16, resistance R15
Second end connect with the second end of resistance R16；The first end of resistance R14 connect resistance R14 simultaneously with the first end of resistance R15
First end connect with the second end of resistance R17 and the chip select terminal double hit of the first end of resistance R14 and control module；Resistance
The second end of R14 is connect with the second end of resistance R15；
The battery discharge control circuit are as follows:
Capacitor C1 first termination positive pole, the second end of the second terminating resistor R1 of capacitor C1, the first end of resistance R1 with
The source electrode of metal-oxide-semiconductor Q2 connects；The second end of resistance R1 is connect with the grid of metal-oxide-semiconductor Q2, the drain electrode of metal-oxide-semiconductor Q2 and No. 1 connecting line
Connection；The first end of resistance R4 is connect with the second end of resistance R1, and the second end of resistance R4 is connect with the collector of triode Q1,
The base stage of triode Q1 is connect with the second end of resistance R2, and the emitter of triode Q1 is connect with No. 2 connecting lines；The of resistance R2
One end is connect with anode voltage input terminal；The second end of resistance R2 is connect with the first end of resistance R3；The second end of resistance R3 with
Power cathode connection, the second end of resistance R3 are connect with the emitter of triode Q1；
The input current sample circuit are as follows:
The first end of resistance R7 is connect with No. 2 connecting lines of battery discharge control circuit, the second end of resistance R7 and No. 3 connecting lines
Connection；The first end of resistance R8 is connect with the first end of resistance R7, and the second end of resistance R8 is connect with the second end of resistance R7；Electricity
The first end of resistance R6 is connect with the first end of resistance R7, and the second end of resistance R6 is connect with the second end of resistance R7；Resistance R5's
First end is connect with the first end of resistance R7, and the second end of resistance R5 is connect with the second end of resistance R7；The first end of resistance R9
It is connect with the first end of resistance R7, the second end of resistance R9 and the feedback end of control module connect；
The output module sample circuit are as follows:
No. 4 connecting lines of the first end of resistance R18 and LED drive circuit connect, and the of the second end of resistance R18 and resistance R17
One end connection, the first end of resistance R17 are connect with the first end of capacitor C9, the second end of resistance R17 and the second end of capacitor C9
Connection, the second end ground connection of capacitor C9；The anode of polar capacitor CE1 is connect with the first end of resistance R18, polar capacitor CE1's
Cathode is connect with the second end of resistance R17, while the anode of polar capacitor CE1 is connect with LED point lamp plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119708.5U CN209608903U (en) | 2018-12-17 | 2018-12-17 | A kind of invariable power circuit for solar lamp controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119708.5U CN209608903U (en) | 2018-12-17 | 2018-12-17 | A kind of invariable power circuit for solar lamp controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209608903U true CN209608903U (en) | 2019-11-08 |
Family
ID=68397460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822119708.5U Active CN209608903U (en) | 2018-12-17 | 2018-12-17 | A kind of invariable power circuit for solar lamp controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209608903U (en) |
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2018
- 2018-12-17 CN CN201822119708.5U patent/CN209608903U/en active Active
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