| 摘要 |
<p>In a self-oscillating bridge circuit, the control of the low switch (6) is derived from the control of the high switch (7) by coupling the control circuitry (SC2) of the low switch to a terminal P in the control circuitry (19, 20, 21, 25, 26, 27, 28, 29, 30) of the high switch by means of a diode (D1). In accordance with the invention, the control of the low switch is improved by incorporating control circuitry (SC3) for rendering the low switch conducting for a short period after the high switch has become non-conducting.</p> |
