| 摘要 |
This invention relates to a drive circuit for a bridge circuit having a net load across its output, the net load being inductive at the operating frequency, the bridge circuit including a series circuit of first and second switching elements coupled between first and second DC voltage supply lines and switching means for alternately switching on and off said first and second switching elements. In the present invention the switching means comprises first and second switching devices each coupled to an associated one of the switching elements whereby switching off one of the switching elements by its associated switching device causes, by virtue of the net load being inductive, a commutating voltage which is employed to turn on the other switching element. |
