| 摘要 |
The present invention is related to a flyback converter with synchronous rectifier, and to use the current sensor coupled with the synchronous rectifier to detect the secondary current of the transformer. Using the secondary current, this invention could control the pulse width of the output signal from the synchronous rectifier to make the diode turn on in the same time with the synchronous switch. This invention could improve the power efficiency of the power supply and avoid the secondary current flows back, and simplify the circuit design to make the production much easier to cost down.
|
