| 摘要 |
PURPOSE: To get a low-voltage DC power source with the simple constitution by a small-capacity resistor, a capacitor, and a switch, by dividing high-voltage DC power with three resistors, and arranging a capacitor in parallel with the second resistor so as to get the required low-voltage DC power. CONSTITUTION: Three pieces of resistors 4m11, 4m12, and 4m13 connected in series are connected to a high-voltage DC power source 11, and a capacitor 3m1 is connected in parallel with the resistor 4m12. Moreover, in parallel with the high-voltage DC power source 11 are switch element 2p1, 2pm, 2pm+1, 2Pn, 2N1, 2Nn-m, 2Nn-m+1, and 2Nn in series connected. Here, the switch elements 2p1...2Pn constitutes a positive pole arm, and the switch elements 2N1...2Nn constitute a negative pole arm. By this constitution, a low-voltage power source [(n-m)/n] times as high as the desired high-voltage power source 11 can be constituted by adjusting the resistance ratio of the resistors 4m11 to 1m13. |
