CN108633148B - High-power low-loss adjustable constant-current power supply control module - Google Patents
High-power low-loss adjustable constant-current power supply control module Download PDFInfo
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- CN108633148B CN108633148B CN201810396396.4A CN201810396396A CN108633148B CN 108633148 B CN108633148 B CN 108633148B CN 201810396396 A CN201810396396 A CN 201810396396A CN 108633148 B CN108633148 B CN 108633148B
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- 239000003381 stabilizer Substances 0.000 claims abstract description 36
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 25
- 150000002367 halogens Chemical class 0.000 claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 52
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a high-power low-loss adjustable constant-current power supply control module, which comprises a power interface, an LDO (low dropout regulator), a current stabilizer and a current regulation module, wherein the power interface is connected with the LDO, and the LDO regulates the voltage of a vehicle-mounted power supply; the LDO is connected with the current stabilizer, and the current stabilizer receives a stable voltage value from the LDO and outputs constant current; the current regulator is connected with the current regulating module, and the current regulating module regulates the constant current from the current regulator within the range of 1-4A according to the signal fed back by the singlechip and outputs the stable current value with the required magnitude to the halogen car lamp. According to the invention, an adjustable constant-current power supply control module is introduced for the halogen car lamp, the stable current output by the current stabilizer is controlled through the signal fed back by the singlechip, and the stable current with the required size is provided for the halogen car lamp, so that the lighting effects of stability and different light intensities are achieved, the use efficiency of electric energy is improved, and the energy waste and loss are avoided.
Description
Technical Field
The invention relates to a halogen car lamp power supply control module, in particular to a high-power low-loss adjustable constant current power supply control module.
Background
With the rapid development of the car light industry, the types of car lights are more and more, and the halogen lamp is used as the car headlight with the most widely used at present, and the illumination intensity, the energy conservation and the service life of the halogen lamp are far less than those of advanced car lights such as a xenon headlight, an LED headlight, a laser headlight and the like. But is favored by many consumers because of its low cost and high economy.
The power of the halogen car lamp is about 55W, and the energy consumption is large. For dim rural roads, 55W power just meets the requirement, but for certain urban roads with sufficient illumination, the full-power car lamp mode causes waste of electric energy and can easily cause glare for opposite drivers.
Disclosure of Invention
In order to solve the problem that the halogen car lamp cannot adjust power, the invention provides the high-power low-loss adjustable constant-current power supply control module, and the power of the car lamp is increased and decreased in real time by adjusting the magnitude of the current in the halogen car lamp, so that the energy-saving effect is achieved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The high-power low-loss adjustable constant-current power supply control module comprises a power interface, an LDO (low dropout regulator), a current stabilizer and a current regulation module, wherein the power interface is connected with the LDO, and the LDO regulates the voltage of a vehicle-mounted power supply; the LDO is connected with the current stabilizer, and the current stabilizer receives a stable voltage value from the LDO and outputs constant current; the current regulator is connected with the current regulating module, and the current regulating module regulates the constant current from the current regulator within the range of 1-4A according to the signal fed back by the singlechip and outputs the stable current value with the required magnitude to the halogen car lamp.
Further, the losses of the current stabilizer itself are lower than 5%.
Further, the current adjusting module is externally connected with two halogen lamps, and the power of each halogen lamp is 55W.
The beneficial effects are that:
1. according to the invention, an adjustable constant-current power supply control module is introduced for the halogen car lamp, the stable current output by the current stabilizer is controlled through the signal fed back by the singlechip, and the stable current with the required size is provided for the halogen car lamp, so that the lighting effects of stability and different light intensities are achieved, the use efficiency of electric energy is improved, and the energy waste and loss are avoided.
2. The current regulating module can reduce the power of the halogen car lamp when the ambient brightness is insufficient or enough and the car is stationary, and does not turn off the lamp; the current stabilizer can reduce the current impact when the bulb is started, prolong the service life of the halogen car lamp, and ensure the use efficiency of electric energy because the loss of the current stabilizer is lower (lower than 5%).
Drawings
FIG. 1 is a block diagram of an adjustable constant current power supply control module according to an embodiment of the invention;
FIG. 2 is a circuit diagram of an LDO according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of a current stabilizer according to an embodiment of the present invention;
In the figure: 1-power interface, 2-LDO, 3-current stabilizer, 4-current regulation module.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The embodiment provides a high-power low-loss adjustable constant-current power supply control module, which is shown in fig. 1, and comprises a power interface 1, an LDO 2, a current stabilizer 3 and a current regulation module 4, wherein the power interface 1 is connected with the LDO 2, and the LDO 2 regulates the voltage of a vehicle-mounted power supply; the LDO 2 is connected with the current stabilizer 3, and the current stabilizer 3 receives a stable voltage value from the LDO 2 and outputs constant current; the current stabilizer 3 is connected with the current adjusting module 4, the current adjusting module 4 adjusts the constant current from the current stabilizer 3 within the range of 1-4A according to the signal fed back by the singlechip, and outputs the stable current value with the required size to the halogen lamp, so as to provide the power value suitable for the surrounding environment for the halogen lamp.
In this embodiment, the voltage fluctuation range of the vehicle-mounted power supply is generally 6-17V, and when the vehicle is started and other power utilization modules are started, the voltage can obviously fluctuate, so that the voltage loaded on the halogen vehicle lamp is affected, and the light is unstable. After being connected with the adjustable constant current power supply control module, the vehicle-mounted power supply 1 is connected with the current stabilizer 3 and then outputs constant current, and the constant current is not influenced by other power utilization modules. The voltage of the halogen lamp is generally about 13V, and the output power of the halogen lamp is constant 55W/V. When the automobile runs on a road surface with darker light, the optical sensor senses the light intensity of the surrounding environment and feeds the light intensity back to the singlechip, the singlechip sends a signal for increasing current to the current adjusting module 4 after operation, and the current adjusting module 4 adjusts the current from the current stabilizer 3 to increase the current intensity to 4A at most, so that the power is improved, and the lighting effect is enhanced. When the light intensity of the surrounding environment is enough or the vehicle stays in place for waiting, the singlechip sends a signal for reducing the current to the current adjusting module 4, the current adjusting module 4 reduces the current of the current stabilizer 3, the current value is as low as 1A, and the halogen vehicle lamp keeps running in a low-power state, thereby playing a role in energy conservation.
In the present embodiment, as shown in fig. 2, LDO 2 includes a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, and a three-terminal regulator U1 (LM 7805); the 8 pin of the three-terminal voltage regulator U1 is connected with one end of the twelfth capacitor C12 and one end of the tenth capacitor C10, and is used as a voltage input end before voltage stabilization to input 13.5V voltage; the other end of the twelfth capacitor C12 is connected with one end of the eleventh capacitor C11 and is used as a grounding end; the other end of the tenth capacitor C10 is connected with the other end of the eleventh capacitor C11; the 1 pin of the three-terminal voltage stabilizer U1 is used as a voltage output end after voltage stabilization to output 5V voltage; the 7 pin and the 6 pin of the three-terminal voltage stabilizer U1 are connected and serve as a grounding end; the 2 pin and the 3 pin of the three-terminal voltage regulator U1 are connected and serve as a grounding terminal.
In this embodiment, as shown in fig. 3, the current stabilizer 3 includes a first operational amplifier U2 (LM 101A), a second operational amplifier U3 (LM 308), first to twelfth resistors R1-R12, first to ninth capacitors C1-C9, a first zener diode D1 (LM 113), a second zener diode D2 (1N 821), first to fifth transistors T1-T5, first to fifth light emitting diodes LED1-LED5, a second adjustable resistor W1 and a second adjustable resistor W2, one end of the first resistor R1 is connected to one end of the first capacitor C1, one end of the eighth resistor R8, one end of the first zener diode D1 and one end of the first adjustable resistor W1, as a voltage input positive terminal Ui, inputting 25-35V voltage; the other end of the first capacitor C1 is grounded; the other end of the eighth resistor R8 is connected with the emitter of a fifth triode T5 (2N 2905), the base of the fifth triode T5 is connected with the other end of a first voltage stabilizing diode D1, the other end of a first adjustable resistor W1 and one end of a seventh resistor R7, the collector of the fifth triode T5 is connected with one end of a second voltage stabilizing diode D2 and one end of a second adjustable resistor W2, the other end of the second voltage stabilizing diode D2 is connected with the other end of the second adjustable resistor W2, the other end of the seventh resistor R7, one end of an eighth capacitor C8, one end of a twelfth resistor R12 and one end of a fourth light emitting diode LED4 (1N 4002), as a ground terminal; the adjustable end of the first adjustable resistor W1 is connected with the 2 pin of the first operational amplifier U2 through a fourth resistor R4, the 3 pin of the first operational amplifier U2 is connected with one end of a second resistor R2, and the other end of the second resistor R2 is connected with the other end of the first resistor R1, the collector of a first triode T1 (LM 395), the collector of a second triode T2 (LM 395), the collector of a third triode T3 (LM 395) and one end of a fourth capacitor C4; the 6 pin of the first operational amplifier U2 is connected with one end of a first light emitting diode LED1 (1N 457), and the other end of the first light emitting diode LED1 is connected with the other end of a fourth capacitor C4, the base electrode of a first triode T1, the base electrode of a second triode T2, the base electrode of a third triode T3 and one end of a tenth resistor R10; the 1 pin of the first operational amplifier U2 is connected with the 8 pin of the first operational amplifier U2 and one end of the second light emitting diode LED2 (1N 457) through a ninth capacitor C9; the other end of the second light emitting diode LED2 is connected with the 6 pin of the second operational amplifier U3, one end of the third capacitor C3, the other end of the tenth resistor R10, one end of the eleventh resistor R11 and one end of the third light emitting diode LED 3; the pin 2 of the second operational amplifier U3 is connected with one end of a sixth resistor R6, the other end of a third capacitor C3 and one end of the third resistor R3, and the other end of the sixth resistor R6 is grounded; the other end of the third resistor R3 is connected with the other end of the fourth light emitting diode LED4 (1N 4002), one end of the sixth capacitor C6, the emitter of the first triode T1, the emitter of the second triode T2, the emitter of the third triode T3, the collector of the fourth triode T4 (LM 395), one end of the fifth capacitor C5, the other end of the third triode LED3 and the other end of the eleventh resistor R11 to serve as the output end of the current stabilizer 3; the 1 pin of the second operational amplifier U3 is connected with the 8 pin of the second operational amplifier U3 through a second capacitor C2; the pin 3 of the second operational amplifier U3 is connected with the other end of the eighth capacitor C8 and one end of the fifth resistor R5, and the other end of the fifth resistor R5 is connected with the adjustable end of the second adjustable resistor W2; the pin 9 of the second operational amplifier U3 is connected with one end of a ninth resistor R9, the other end of a fifth capacitor C5 and the base electrode of a fourth triode T4; the other end of the ninth resistor R9 is connected with the emitter of the fourth triode T4, one end of the fifth light emitting diode LED5 (1N 4002) and one end of the seventh capacitor C7, and is used as a voltage input negative terminal-Ui for inputting-5 to-10V voltage; the other end of the sixth capacitor C6 is connected with the other end of the twelfth resistor R12; the other end of the fifth light emitting diode LED5 is connected to the other end of the seventh capacitor C7 as a ground terminal.
It should be apparent to those skilled in the art that various modifications or variations can be made in the present invention without requiring any inventive effort by those skilled in the art based on the technical solutions of the present invention.
Claims (3)
1. A high-power low-loss adjustable constant-current power supply control module is characterized in that: the vehicle-mounted power supply comprises a power interface (1), an LDO (low dropout regulator) (2), a current stabilizer (3) and a current regulating module (4), wherein the power interface (1) is connected with the LDO (2), and the LDO (2) regulates the voltage of a vehicle-mounted power supply; the LDO (2) is connected with the current stabilizer (3), and the current stabilizer (3) receives a stable voltage value from the LDO (2) and outputs constant current; the current stabilizer (3) is connected with the current regulating module (4); the optical sensor senses the light intensity of the surrounding environment and feeds the light intensity back to the singlechip, and the singlechip sends out a signal for regulating current after operation; the current regulating module (4) regulates the constant current from the current stabilizer (3) within the range of 1-4A according to the signal fed back by the singlechip, and outputs a stable current value with a required magnitude to the halogen car lamp;
the LDO (2) comprises a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12 and a three-terminal voltage regulator U1 with the model LM 7805; the 8 pin of the three-terminal voltage regulator U1 is connected with one end of the twelfth capacitor C12 and one end of the tenth capacitor C10, and is used as a voltage input end before voltage stabilization to input 13.5V voltage; the other end of the twelfth capacitor C12 is connected with one end of the eleventh capacitor C11 and is used as a grounding end; the other end of the tenth capacitor C10 is connected with the other end of the eleventh capacitor C11; the 1 pin of the three-terminal voltage stabilizer U1 is used as a voltage output end after voltage stabilization to output 5V voltage; the 7 pin and the 6 pin of the three-terminal voltage stabilizer U1 are connected and serve as a grounding end; the 2 pin and the 3 pin of the three-terminal voltage stabilizer U1 are connected and serve as a grounding end;
The current stabilizer (3) comprises a first operational amplifier U2 with the model LM101A, a second operational amplifier U3 with the model LM308, first to twelfth resistors R1-R12, first to ninth capacitors C1-C9, a first zener diode D1, a second zener diode D2, first to fifth triodes T1-T5, first to fifth light emitting diodes LED1-LED5, a second adjustable resistor W1 and a second adjustable resistor W2, one end of the first resistor R1 is connected with one end of the first capacitor C1, one end of the eighth resistor R8, one end of the first zener diode D1 and one end of the first adjustable resistor W1 as a voltage input positive terminal Ui, inputting 25-35V voltage; the other end of the first capacitor C1 is grounded; the other end of the eighth resistor R8 is connected with the emitter of the fifth triode T5, the base electrode of the fifth triode T5 is connected with the other end of the first voltage stabilizing diode D1, the other end of the first adjustable resistor W1 and one end of the seventh resistor R7, the collector electrode of the fifth triode T5 is connected with one end of the second voltage stabilizing diode D2 and one end of the second adjustable resistor W2, the other end of the second voltage stabilizing diode D2 is connected with the other end of the second adjustable resistor W2, the other end of the seventh resistor R7, one end of the eighth capacitor C8, one end of the twelfth resistor R12 and one end of the fourth light emitting diode LED4 to serve as grounding ends; the adjustable end of the first adjustable resistor W1 is connected with the 2 pin of the first operational amplifier U2 through a fourth resistor R4, the 3 pin of the first operational amplifier U2 is connected with one end of a second resistor R2, and the other end of the second resistor R2 is connected with the other end of the first resistor R1, the collector of the first triode T1, the collector of the second triode T2, the collector of the third triode T3 and one end of a fourth capacitor C4; the 6 pin of the first operational amplifier U2 is connected with one end of a first light emitting diode LED1, and the other end of the first light emitting diode LED1 is connected with the other end of a fourth capacitor C4, the base electrode of a first triode T1, the base electrode of a second triode T2, the base electrode of a third triode T3 and one end of a tenth resistor R10; the pin 1 of the first operational amplifier U2 is connected with the pin 8 of the first operational amplifier U2 and one end of the second light emitting diode LED2 through a ninth capacitor C9; the other end of the second light emitting diode LED2 is connected with the 6 pin of the second operational amplifier U3, one end of the third capacitor C3, the other end of the tenth resistor R10, one end of the eleventh resistor R11 and one end of the third light emitting diode LED 3; the pin 2 of the second operational amplifier U3 is connected with one end of a sixth resistor R6, the other end of a third capacitor C3 and one end of the third resistor R3, and the other end of the sixth resistor R6 is grounded; the other end of the third resistor R3 is connected with the other end of the fourth light emitting diode LED4, one end of the sixth capacitor C6, the emitter of the first triode T1, the emitter of the second triode T2, the emitter of the third triode T3, the collector of the fourth triode T4, one end of the fifth capacitor C5, the other end of the third triode LED3 and the other end of the eleventh resistor R11 to serve as the output end of the current stabilizer 3; the 1 pin of the second operational amplifier U3 is connected with the 8 pin of the second operational amplifier U3 through a second capacitor C2; the pin 3 of the second operational amplifier U3 is connected with the other end of the eighth capacitor C8 and one end of the fifth resistor R5, and the other end of the fifth resistor R5 is connected with the adjustable end of the second adjustable resistor W2; the pin 9 of the second operational amplifier U3 is connected with one end of a ninth resistor R9, the other end of a fifth capacitor C5 and the base electrode of a fourth triode T4; the other end of the ninth resistor R9 is connected with the emitter of the fourth triode T4, one end of the fifth light-emitting diode LED5 and one end of the seventh capacitor C7, and is used as a voltage input negative terminal-Ui to input-5 to-10V voltage; the other end of the sixth capacitor C6 is connected with the other end of the twelfth resistor R12; the other end of the fifth light emitting diode LED5 is connected to the other end of the seventh capacitor C7 as a ground terminal.
2. The high-power low-loss adjustable constant-current power supply control module according to claim 1, wherein: the loss of the current stabilizer (3) is lower than 5%.
3. The high-power low-loss adjustable constant-current power supply control module according to claim 1, wherein: the current adjusting module (4) is externally connected with two halogen car lights, and the power of each halogen car light is 55W.
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| CN201810396396.4A CN108633148B (en) | 2018-04-28 | 2018-04-28 | High-power low-loss adjustable constant-current power supply control module |
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| CN201810396396.4A CN108633148B (en) | 2018-04-28 | 2018-04-28 | High-power low-loss adjustable constant-current power supply control module |
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| CN108633148B true CN108633148B (en) | 2024-05-24 |
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