| 摘要 |
<p>The circuit drives a load (L) connected in the diagonal of a transistor bridge (Q1-Q4). An extra transistor (Q5) is connected in the path of current (I) through the load (L) and is switched on and off at the same times. The control electrode of the extra transistor is addressed by the control voltage, which turns it on and off so slowly that the load current rise and fall times are greater than the reciprocal of the lowest audible frequency.</p> |
