| 摘要 |
The circuit includes a full wave rectifier 11 whose DC output is applied via a current limiter 31 to a storage circuit 27, 29. As shown, the current limiter consists of two coils 21, 23 wound on a common magnetic core with the one ends of the coils connected across the DC output of the rectifier and the other ends of the coils connected across the storage circuit. The circuit may be arranged to provide the same DC voltage output magnitude regardless of whether 120V or 240V AC is applied. If 240V AC is applied a switch 25 is opened whereas if 120V AC is applied the switch is closed and the circuit acts as a voltage doubler. <IMAGE> |
