| 摘要 |
PURPOSE:To decrease the leading time at start and to increase the output voltage holding time at the generation of momentary interruption, by providing the 1st capacitor of a small capacitance and the 2nd capacitor of a large capacitance. CONSTITUTION:Since a voltage of the 1st capacitor 25 rises early at start, the said voltage is applied to a pulse transmission circuit 6 through load terminals C, D. The voltage at the terminal C is blocked at a diode 29 for preventing reverse flow, and is not supplied to the 2nd capacitor 26. If an output voltage of a receiving power supply 10 is lowered because of the momentary interruption of a balanced type cable, the voltage charged in the 2nd capacitor 26 passes through the diode 29 and is applied to the pulse transmission circuit 6 from the terminal C. Thus, a power is applied to the load even during the momentary interruption by increasing the capacitance value of the 2nd capacitor 26. Further, the leading time at start is decreased by setting the capacitance value of the 1st capacitor 25 to a small value. |
