| 摘要 |
PURPOSE:To supply the stabilized voltage of a fixed level regardless of the external conditions by including a reference part which detects the output voltage and feeds it back to a voltage control part into a processor to which the output voltage of the voltage control part. CONSTITUTION:A voltage control part 110 connected to a DC power supply 200 contains a reference voltage circuit 112, a comparator 112, a comparator 114 and a control circuit 116. A processor 300 consists of a reference part 120 and a load circuit 310. The part 120 includes a reference circuit 122 which extracts the voltage in response to the voltage dividing ratio of a resistance connected in parallel to the circuit 310. A voltage diode 1 and a differential amplifier are provided to the circuit 112 and the comparator 114 respectively to receive input of the voltage detected by the circuit 122 and the voltage of the circuit 112 respectively. Then the circuit 116 is actuated in response to the difference between both voltage levels to keep the voltage at a fixed level.
|
