| 摘要 |
PURPOSE: To maintain high power factor, sufficient to meet actual service conditions with respect to fluctuations in load or AC input voltage, and restrain generation of ripples components. CONSTITUTION: This switching power circuit is provided with a power factor improved circuit for a combined resonance converter, where switching output obtained in a primary resonance circuit is fed back to the power factor improved circuit 10 by mean of an electrostatic coupling system via a primary parallel resonance capacitor Cr.
|
