| 摘要 |
PURPOSE: To constitute a high voltage detection circuit of high precision at a low cost. CONSTITUTION: A resistance 8 is inserted in series to a secondary winding 2 of an FBT on the winding start side of this winding 2, and a transistor TR 7 operated by the anode current flowing to it is connected, and a load current corresponding to the anode current is taken from the detection voltage of a detection winding 3 by this operation, and inclinations of changes of the anode voltage and the detection voltage are equalized. Thus, the response to the anode voltage of the detection voltage has the same inclination, and the precision of the detection circuit operation is improved. |
