| 摘要 |
<p>The present invention discloses a synchronous rectification apparatus and a synchronous rectification power supply, and relates to the field of power generation and transformation, and is designed to solve the problem that an extra isolation circuit increases costs and the problem that transformation efficiency is reduced by a time sequence difference between a control signal in the rectification part and an alternating current generated on a secondary side. A synchronous rectification apparatus includes a transformer unit, a primary-side switching transistor, a rectifier unit, a driver unit, a filter unit, and a clamp unit, where the first end of a primary-side winding of the transformer unit is connected to an input end, a second end of the primary-side winding is connected to the primary-side switching transistor and the clamp unit, and a secondary-side winding of the transformer unit is connected to the rectifier unit and the driver unit; the rectifier unit is connected to the driver unit and the filter unit; a first end of an output inductor in the filter unit is connected to an output end; and mutual inductance occurs between the output inductor and a first auxiliary winding in the driver unit.</p> |
