一款采用无源无损缓冲电路的新颖充电器

传统R.C.D吸收电路或称缓冲电路,利用电阻R吸收多余电能并转变成热量散发,降低了电路效率,增加了电子装置散热负担,不能适合许多要求高的场合。若能将此种损耗减少甚至消除,则将极大地改善整个装置的工作状况,提高可靠性。利用无源器件L.C和二极管D构成的无源无损缓冲器,没有电阻R,而且能将多余的能量反馈回电源,提高了电路的效率,增加了装置的可靠性。介绍了采用该种技术的单端反激式充电器的使用效果良好。实践证明,无源无损缓冲电路,较之传统的R.C.D缓冲电路,由于没有电阻R,发热少,效率高,工作可靠,比较适合一些高要求的场合。

Novel charger with passive lossless snubber circuit

The conventional R.C.D snubbers convert the excessive electrical power into heat and emit it, which lower the circuit efficiency and increase the volume of heat sink. So these snubbers cannot be applied in the high performance convert. The passive lossless snubber with passive component inductance, capacitance and diode, without resistant, can feed the excessive power back to the grid. The loss is low. The circuit has high efficiency and reliability. A flyback charger with the passive lossless snubber was introduced, and the passive lossless snubber circuit is experimented. Results prove that the charger has higher efficiency and reliability. The passive lossless snubber can be applied in the high performance converter.