| 摘要 |
The present invention relates to a synchronous regulation circuit for the turn-on and the turn-off phase angle of ac voltage. A solid switch unit is installed between AC power and a load. By the synchronization control of a phase angle control circuit for the turn-on and the turn-off phase angle of the solid switch unit, the sinusoidal voltage of the AC power is turned on. The turn-off phase angle is outputted with a symmetrical waveform in the change range of synchronous control. |
