Self-incentive push-pull type power supply

摘要

The invention relates to a power supply with a self-incentive push-pull bridge, the power supply comprises at least a transformer with a core, a high frequency rectifying and voltage stabilizing unit, filtering unit, and a voltage feedback unit. It further comprises a self-incentive push-pull bridge. This self-incentive push-pull bridge consists essentially of a switch unit and a pair of condensers connected to each other. The power supply has advantages of a low cost and a high efficiency, and its linearity, precision, reliability, switching frequency and stability are even higher. Its feature of following-up changes of a load is so excellent, that a self-protection from overload and short-circuit can be realized without any special circuit.