| 摘要 |
<p>An overload protection circuit according to the present invention has an inductor (L) coupled in series with a switching element (Q). Load current is measured (35,38), and the switching element (Q) is controlled (35,36) to supply current to the load via the inductor (L) until a determined current limit is achieved. After achieving the current limit the switching element (Q) is controlled to off-state, during which the freewheeling current of the inductor (L) is lead through a voltage dependent element (Z).</p> |
