| 摘要 |
<p>PURPOSE:To improve the precision of voltage control to the voltage fluctuation of a generator by mounting a proper circuit to a negative feedback circuit for switching at a time division. CONSTITUTION:An adder 12 for detecting voltage inputs deviation voltage between AC output voltage from a synchronous motor 1 and reference voltage from a voltage setter 7 to a PI controller 13 as an amplifier. An adder 14 for arithmetically operating a time division arithmetically operates a difference between output voltage from the adder 12 and output voltage from a signal inverter 10 through a diode 14, a resistor R3 and a variable resistor 15, and inputs output voltage to an integrator 8. A comparator 9 compares integrated voltage outputted from the integrator 8 and a predetermined threshold and adds a switching signal to a power MOSFET 11, and controls currents flowing through an exciting coil 1a.</p> |
