Led ballast power supply having digital controller
作者： Scott Moore , Mark Jutras , Mark Masera
DOI:
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摘要: A power supply for an LED lamp has a set of coupled coils, primary-side circuitry including converter switch conducting input power, and secondary-side dimming switch. Power control includes which generates signal the to maintain desired undimmed level current at normal operating value voltage. Dimming pulse-width modulate duty cycle corresponding dimming. Operation is modified during prevent automatic increase voltage in response decrease current, avoiding undesirable overshooting providing more accurate effective over operation.
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