| 摘要 |
The circuit has at least 2 semiconductor switches (15, 16) connected in series with the load (10), respectively receiving control signals (25, 24) from a control stage (21) directly and via an inverter (23). Pref. the semiconductor switches have different switching characteristics, or use different principles, e.g. a bipolar transistor and a FET, with the voltage across the load monitored for determining the switching status, used by a selection circuit (29) within the control stage for providing the switching control signals. |
