Patent
AC-to-DC voltage converter as power supply for lamp
TLDR
An AC-to-DC voltage converter as power supply for lamp converts an AC input voltage to a constant DC voltage at predetermined value set by potentiometer The converter includes input power supply 210, input protection circuit 201, EMI filter 202, rectifier 203, filter 204, converter 206, output filter 214, lamp 211, start circuit 208, control circuit 209, biasing circuit 212, sampling circuit 207, output protection circuit 200, feedback and dimming circuit 205 and input monitor circuit 213 This version is a flyback converter; versions from other topologies etc are also provided TheAbstract:
An AC-to-DC voltage converter as power supply for lamp converts an AC input voltage to a constant DC voltage at predetermined value set by potentiometer The converter includes input power supply 210, input protection circuit 201, EMI filter 202, rectifier 203, filter 204, converter 206, output filter 214, lamp 211, start circuit 208, control circuit 209, biasing circuit 212, sampling circuit 207, output protection circuit 200, feedback and dimming circuit 205 and input monitor circuit 213 This version is a flyback converter; versions from other topologies etc are also provided The converter has feedback function that can regulate output voltage at predetermined value The converter has dimming function and can adjust lamp brightness for conformability The output constant brightness decreases peoples' eyes fatigue to minimum levelread more
Citations
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Patent
Switching power supply apparatus
TL;DR: In this paper, a switching power supply apparatus, a first switching element is controlled by a driving voltage output from a switching control IC, and a second switching control circuit controls the on-time of a second switch element, so that the time ratio of the second switching element to the on time of the first switch element becomes almost constant with respect to a change in load current.
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References
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High voltage discharge lamp device
TL;DR: In this paper, a discharge lamp control circuit for a vehicle mounted on a vehicle, a capacitor in a starting circuit is charged by a high voltage generated by a transformer used in a direct current power source circuit.
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