| 摘要 |
In a switching DC-DC converter, a switching element (e.g., MOSFET) on the primary side for converting an input DC voltage to an AC voltage performs a switching operation according to a first control signal at a particular frequency and a particular on-off ratio, while a switching element (e.g., MOSFET) on the secondary side for rectifying the AC voltage performs a switching operation according to a second control signal which synchronizes with the first control signal delayed a predetermined time. This allows the primary switching element to perform so-called zero-cross switching, reducing power loss due to response time of the switching element.
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