| 摘要 |
<p>A high frequency miniaturized switching power supply has a unidirectional spike filter (17) which removed spikes appearing on a feedback signal (53) before such feedback signal (53) is provided to a comparator (14) of the switching power supply. The spike filter (17) removes voltage spikes of one polarity without lengthening the reset time of the comparator (14) in response to a wavefront of the opposite polarity.</p> |
