| 摘要 |
PURPOSE:To supply constant-voltage to a load, by connecting a resistance type potential divider in parallel with the load, connecting a correcting resistor between the low voltage side of the potential divider and the ground, and utilizing a voltage drop generated across the correcting resistor by a load current. CONSTITUTION:Between a low voltage end of a resistance type potential divider of a DC high-voltage power supply device, and a ground point, a correcting resistor RS' is connected in series, and to a differential amplifier 10, divided voltage VD' by a resistance type potential divider RD and RD', and voltage VS'=RS'-I0 applied across the correcting resistor RS' are added in series and are inputted. Both a motor 11 and a voltage regulator 2 are automatically controlled so that said input voltag always becomes equal to reference volages ES. This input voltage becomes as VIN=VD'-VS'. This voltage VS' is varied by a load current I0. Therefore, VS' having no relation to a value of I0 is generated by inserting RS' related to RS'=RS/[1+(RD+RD')/RD']. In this way it is possible to supply voltage V0 irrespective of a variation of the load current I0, to a load 6. |
