| 摘要 |
<p>A current pulse generator (18, 19, 20, 25, 28) for generating current pulses on a conductor (15, 15') of controllable magnitude and duration based on a controlled pulse former (20). This pulse former (20) is controlled by a controller (18) in communication with a current sensor (25) and operating a magnitude control signal generator (19) as well as the pulse former (20), the magnitude signal generator (19) also providing a selection signal to the pulse former (20).</p> |
