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Metal halide electronic ballast constant power control circu

2015-03-03 13:27  
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Metal halide electronic ballast constant power control circuit diagram
The circuit can increase the system power factor λ to the number higher than 0.99, and it can effectively suppress the waveform distortion of the input supply current iin to meet requirements of GB15144 with the distortion index being lower than L level, and it can ensure that the HID lamp current crest factor to be less than 1 .7.