Power supply apparatus and image forming apparatus
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United States of America Patent
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Aug 23, 2016
Grant Date -
Sep 24, 2015
app pub date -
Mar 2, 2015
filing date -
Mar 20, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
The power supply apparatus includes a transformer that generates an AC voltage; a driving unit that drives a primary side of the transformer to set an output on a secondary side of the transformer to a predetermined value; a rectifying and smoothing unit connected to one end on the secondary side and adapted to rectify and smooth the AC voltage and output a DC voltage of a positive potential; a voltage generation unit connected to another end on the secondary side and adapted to generate a DC voltage to be superposed with the AC voltage; a control unit connected to the rectifying and smoothing unit and the voltage generation unit and adapted to control a current value according to the DC voltage output by the rectifying and smoothing unit and control the DC voltage generated by the voltage generation unit.
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