| 摘要 |
The circuit has a smoothing capacitor (C) in parallel with the load (L) and a series diode (D1) to charge the capacitor with one or other half wave from the a.c. source up to a desired voltage region for the load. A bypass (1) in parallel with the series circuit of the diode and load contains a switch (2) that closes if the desired load voltage is exceeded. The diode prevents the smoothing capacitor from being discharged via the bypass. |
