| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC-DC converter in which switching loss can be reduced by synchronizing the on/off switching timing of step-up PWM control and the on/off switching timing of step-down PWM control, and to provide a controller of a DC-DC converter, a power supply, an electronic device and a control method of a DC-DC converter. SOLUTION: When both step-up PWM control and step-down PWM control are performed, offset of on/off switching timing of step-up PWM control and offset of on/off switching timing of step-down PWM control are altered such that the offset of on/off switching timing of step-up PWM control becomes identical to the offset of on/off switching timing of step-down PWM control. COPYRIGHT: (C)2006,JPO&NCIPI
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