Terminal voltage detection device of the digital control automatic voltage regulator

摘要

(57) [summary] (modified with) OBJECTIVE: to correct the errors due to non-linearity and ambient temperature change in the terminal voltage detected by a simple circuit configuration, provide a terminal voltage detection device of the high-precision digital control automatic voltage regulator to. [Configuration] In the synchronous generator digital control automatic voltage regulator to adjust the field current of 1 to control the terminal voltage to a predetermined value, and the detection transformer 2 for stepping down the terminal voltage, a diode rectifier circuit 3, a smoothing filter 4, a first A / D converter 5 for converting the output voltage into a digital signal, a correction voltage generator 7 which generates a voltage of forward voltage drop equivalent diode, converts the output voltage into a digital signal The second Composed of the A / D converter 8, multiplied by a predetermined coefficient to the signal from the A / D converter 8, a microcomputer 6 for adding the signal of the A / D converter 5 calculates the terminal voltage detection value of that has been.