| 摘要 |
PURPOSE:To control and adjust the output DC voltage level over a wide level range by inputting the output of an amplifier to an output DC voltage control circuit through a capacitor and synthesizing it with the DC voltage generated by a load circuit to output the result. CONSTITUTION:The input voltage from an input terminal 51 is inputted to an output DC voltage control circuit 12 through an amplifier 11. At this time, the high frequency component of the output of the amplifier 11 passes a capacitor 13. In the circuit 12, the DC voltage generated by a resistor 14 and the input voltage from the amplifier 11 passing the capacitor 13 are synthesized by the current of a variable current source 54 set by the control signal, inputted to a control terminal 54, and the synthesis output is outputted through an output terminal 53. Thus, the DC output voltage of the circuit 11 is outputted through a low current. |
