Controller for high-power electronic product

Abstract

The invention discloses a controller for a high-power electronic product, and relates to an electronic controller, in particular to a controller for a high-power electronic product. The controller is particularly suitable for high-power mercury, sodium and metal halide bulbs and cold cathode florescent lamps. The invention provides a controller for the high-power electronic product with the advantages of light weight, small volume, simple circuit, a fewer components, low cost, convenience of installation, low driving waveform distortion, capacity of working at constant voltage, constant current and constant power, stable work and high reliability. The controller comprises a rectifier filtering circuit, a power factor switching circuit, a driving conversion power control circuit, a starting trigger protection circuit and an auxiliary power circuit, and is characterized in that: the rectifier filtering circuit is connected with an input end of the power factor switching circuit; and an output end of the power factor switching circuit is connected with an input end of the driving conversion power control circuit.

Description

Technical field: [0001] The invention relates to an electronic controller, in particular to a controller for high-power electronic products, which is especially suitable for installation and use on high-power mercury, sodium, metal halide bulbs and cold cathode lamp tubes. Background technique: [0002] There are many types of existing electronic controllers. Now take high-power gas discharge lamps as an example. The working voltage of high-power gas discharge lamps is generally 80-150 volts, while the mains power is 220 volts. It must be adapted to a step-down, current-limiting, and protection control device with the same power as the light bulb. [0003] At present, inductive low-frequency choke coils are mostly used, but they are large in size, heavy in weight, large in loss, low in power factor, noise, interference and flickering, voltage, current, and power cannot be controlled, and the quality of light is poor. There is also an adaptive controller for high-intensity g...

AI Technical Summary

Problems solved by technology

[0003] At present, inductive low-frequency choke coils are mostly used, but they are large in size, heavy in weight, large in loss, low in power factor, noise, interference, and flickering, voltage, current, and power cannot be controlled, and the quality of light is poor.

There is also an adaptive controller for high-intensity gas discharge lamps, which achieves the purpose of dimming by changing the inductance coil and inductance. It has high energy consumption and large interference, and the voltage, current, and power are affected by line voltage fluctuations. Therefore, it is not suitable for use on high-power gas discharge lamps.

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