| 摘要 |
<p>A push-pull dc voltage converter has an energy recovery circuit with an inductance (L1) in the transformer (Tr) positive supply wire (+) and with a second inductance L2) tightly coupled with the first. One terminal of the second inductance is connected to the negative supply wire (-), and the other through a diode (D) in the forward direction, to the input terminal of the positive supply wire. A capacitor (C) is inserted between the two input terminals. A control circuit operates a control unit so that they keying ratio is increased when the output voltage falls, and vice-versa.</p> |
