| 摘要 |
A power control circuit for reducing AC power to a load, including a bilateral power control switch for connection in series with the load, a bilateral energy return switch for connection in parallel with the load, and a driver circuit connected to the switches. The driver circuit is configured to control the high speed power switches so that the energy return switch is closed when the power control switch is open; and vice-versa. A timer circuit is connected to the driver circuit and causes the power control switch to close and then open at least once during each half cycle of the AC current. |
