Light source driving circuit and factory lamp including the light source driving circuit
A technology of a light source driving circuit and a driving source, applied in the field of light source driving circuits and workshop lights, can solve the problems that the light source driving circuit cannot realize the driving voltage of light emitting diodes, the discarding of light emitting diodes, etc. The effect of strong power interference ability
Inactive Publication Date: 2011-12-28
李光男
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Problems solved by technology
Therefore, LEDs that do not meet the above requirements will be considered defective and discarded
In addition, if some LEDs in the LED light source are degraded or damaged due to long-term operation, the driving voltage supplied to the LEDs needs to be adjusted, while the light source according to the prior art that only uses a rectifier bridge to drive the LEDs The drive circuit cannot adjust the drive voltage supplied to the LED
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[0025] A light source driving circuit and a factory lamp including the light source driving circuit according to exemplary embodiments will be described in detail below with reference to the accompanying drawings.
[0026] figure 2 is a schematic block diagram illustrating a light source driving circuit according to an exemplary embodiment. Such as figure 2 As shown in , the light source drive circuit according to the exemplary embodiment includes a rectifier bridge circuit 1 , a voltage regulation circuit 2 and a light emitting diode drive source circuit 3 .
[0027] The rectifier bridge circuit 1 is connected to an external power supply. The external power supply is, for example, a commercial power supply or other AC power supply with a rated frequency of 50 Hz or 60 Hz and a rated voltage of 110 V or 220 V. The rectifier bridge circuit 1 converts an AC voltage supplied from an external power source into a DC voltage. The rectifier bridge circuit 1 provides the rectifi...
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The invention provides a light source driving circuit and a factory lamp including the light source driving circuit. The light source driving circuit includes a rectifier bridge circuit, a voltage regulating circuit and a light emitting diode driving source circuit, wherein the light emitting diode driving source circuit receives a second output from the voltage regulating circuit and adjusts the second output to generate a first voltage with a specific cycle Three outputs and providing the third output to the positive terminal of the LED light source, wherein the specified period is less than the period of the voltage of the second output. The light source drive circuit has the advantages of simple structure, low micro-current power consumption, no heat generation, strong anti-interference ability to power supply, explosion-proof function, long life without maintenance, good versatility, low cost, long-term lighting does not affect eye health, etc. The main performance parameters meet the requirements of relevant national standards.
Description
technical field [0001] The invention relates to the field of electronic circuits. More specifically, the present invention relates to a light source driving circuit and factory lights including the light source driving circuit. Background technique [0002] A light-emitting diode light source is a light source including one or more light-emitting diodes (LEDs). Due to the high luminous efficiency and long life of the light-emitting diodes, the light-emitting diode light source has attracted much attention as a next-generation lighting device. By selecting various parameters of the LEDs included in the LED light source and the number of LEDs, it is possible to realize LED light sources with brightness meeting various needs and different powers. For example, light-emitting diode light sources can be used as various lighting devices such as ceiling lamps, table lamps, factory lights for indoor lighting, and street lights for outdoor lighting. [0003] Because light-emitting d...
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Login to View More IPC IPC(8): H05B37/02F21S8/00F21V19/00F21W131/402F21Y101/02
CPCY02B20/42Y02B20/40
Inventor 李光男
Owner 李光男