| 摘要 |
A Circuit arrangement comprising a high-side semiconductor switch (Mhs) with a first load terminal (D) connected to a first supply terminal receiving an input voltage (Vin), a second load terminal (S) connected to an output terminal providing an output signal (Vo), and a control terminal (G), a floating driver circuit (22) connected to said control terminal (G) for driving said semiconductor switch (Mhs), a level shifter (10) receiving an input signal (PWM) and providing a floating input signal (PWMh) dependent on said input signal (PWM), a floating control logic (2) receiving said output signal (Vo) and said floating input signal (PWMh) and providing at least one control signal (CTRL) to said floating driver circuit (22), wherein said floating control logic (2) comprises means (25',V1,C1,R1) for detecting an edge in said output signal (Vo) and means (21) for generating said control signal (CTRL) dependent on the result of the edge detection.
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