A multifunctional LED street lamp driver with high efficiency, power saving rate and long life
A technology of LED street lamps and energy saving rate, which is applied in the direction of electric lamp circuit layout, electric light source, energy saving control technology, etc., and can solve the problems of single function, insufficient energy saving rate of LED street lamps, and short service life.
Active Publication Date: 2019-03-15
黄焕珠
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Problems solved by technology
[0002] At present, LED is eliminating incandescent street lamps due to its high power saving rate, but the current LED street lamp driver has a single function, lacks the function of timing automatic dimming, and lacks the heat dissipation function of semiconductor cooling chips, so that when the driver is used in LED street lamps , the energy-saving rate of LED street lamps has not been fully improved, and the service life of the lamps is not long
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[0006] As shown in the figure, D1, D2, R1, R2, R3, and C1 form an electronic transformer circuit. R1 is an adjustable resistor. By adjusting the value of R1, the input AC 220V voltage becomes the required AC output voltage value for the following The voltage required by the first-stage circuit; B is a single-phase full-wave rectifier circuit, which converts the AC voltage output by the electronic transformer into a pulsating DC voltage to supply the working voltage of the next-stage circuit.
[0007] As shown in the figure, D4, R4, R5, R6, C2, and C3 form a thyristor phase-shift control circuit, which controls the DC voltage in the range of about 40V to supply the working voltage of the LED street lamp.
[0008] As shown in the attached figure, IC1, R7, C5 and IC2, R8, C6 are two sets of independent constant current power supply circuits. By selecting the appropriate value of R7 or R8, the required constant current power supply value can be obtained, and the two A group of con...
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Disclosed is a multifunctional efficient power-saving long-life LED street lamp driver. A composing circuit of the driver is composed of an electronic transformer circuit, a rectifier circuit, a thyristor control circuit, a constant-current source circuit, a voltage regulator circuit, an automatic dimming circuit and an electronic temperature control circuit. The multifunctional efficient power-saving long-life LED street lamp driver has a timed automatic dimming function, a constant-current source power supply function, an electronic temperature control function and a semiconductor chilling plate radiation function. If the driver is applied to an LED street lamp, the LED street lamp has a function that the power saving rate is more than 25% higher than that of a common LED street lamp without an automatic dimming function, has a function that the operating temperature thereof is controlled below 50 DEG C and has a function of being used for 50,000 hours.
Description
technical field [0001] The invention relates to a multi-functional, high-efficiency, power-saving and long-life LED street lamp driver. Background technique [0002] At present, LED is eliminating incandescent street lamps due to its high power saving rate, but the current LED street lamp driver has a single function, lacks the function of timing automatic dimming, and lacks the heat dissipation function of semiconductor cooling chips, so that when the driver is used in LED street lamps , The energy-saving rate of LED street lamps has not been fully improved, and the service life of the lamps is not long. Contents of the invention [0003] The invention discloses a multifunctional, high-efficiency, power-saving, and long-life LED street lamp driver, disclosing a fully functional LED street lamp driver capable of timing and automatic dimming; the street lamp driver can help heat dissipation with semiconductor refrigeration chips; the street lamp driver can be powered by a c...
Claims
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IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 黄焕珠
Owner 黄焕珠