| 摘要 |
PROBLEM TO BE SOLVED: To provide a reliable high frequency resonance inverter where the control object of burst control is a step-down converter, and having as little adverse effect on the switch life as possible, and to provide a switching power supply.SOLUTION: A resonance inverter has: first switch elements and second switch elements turning on/off alternately; first capacitors and second capacitors; a first inverter section including a first switch element and a first capacitor; and a second inverter section including a second switch element and a second capacitor. The first coil and first capacitor constitute a first resonance circuit of the first inverter section, and the first coil and second capacitor constitute a second resonance circuit of the second inverter section.SELECTED DRAWING: Figure 1 |
