The following regulator schematic stabilize the output voltage without transformer at 200V directly. Even though with high output voltage, this circuit only suffer a tension of the voltage drop (Vin-Vout) suffered mainly by the transistors. The op-amp suffers less tension since it regulate the applied voltage at their pins around the level of transistor’s bias voltage level.

DC Regulator Circuit Direct High Voltage

source : freecircuitdiagram.com

 

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