| 摘要 |
PURPOSE:To provide an output voltage stabilizing device capable of improving stability and having quick responseness to disturbance. CONSTITUTION:The stabilizing device is provided with an output voltage detecting means 1 for detecting output voltage, an A/D conversion means 2 for A/D converting the detected output voltage, an ignition phase angle change computing means 3 for computing a change in the ignition phase angle of a thyrister by comparing the digital detection value of the A/D converted output voltage with a previously set reference value, an ignition phase angle updating means 4 for updating an ignition phase angle based upon the computed change in the ignition phase angle, a means 5 for generating an ignition pulse based upon an induction outputted from the means 4, and a means 6 for generating a synchronizing signal based upon the waveform of output voltage and constituted so that ignition phase angle control to be executed in the order of the detection of output voltage, the A/D conversion of the detection value, the operation of a change in an ignition phase angle, the updating of the ignition phase angle, and the generation of an ignition pulse is executed at the timing of a synchronizing signal generated from output voltage with commercial frequency. |
