| 摘要 |
In an AC/DC converter a preloading circuit is provided for a bridgeless boost converter, including a first diode D1 having its anode connected to a first AC input terminal of the AC/DC converter and having its cathode connected to a first DC output terminal of the AC/DC converter, a second diode D2 having its anode connected to a second AC input terminal of the AC/DC converter and having its cathode connected to the first DC output terminal of the AC/DC converter, a first switch S1 having one end connected to said first AC input terminal of the AC/DC converter and having its other end connected to a second DC output terminal of the AC/DC converter, and a second switch S2 having one end connected to said second AC input terminal of the AC/DC converter and having its other end connected to said second DC output terminal of the AC/DC converter.
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