| 摘要 |
PROBLEM TO BE SOLVED: To control the output voltage stably by providing a controllable shunt for keeping stability of the output voltage upon increase of rectifier output voltage, and a controller for controlling the load output voltage. SOLUTION: A first filter capacitor 104 connected in parallel between the positive and negative terminals on the output side of a rectifier 103 suppresses voltage ripples and the need of installation thereof is selected as required by the circuit. A controllable shunt 105 comprising a linear or switching solid stage or a discrete element or a thyristor is connected in parallel with the output side of the rectifier 103 and holds a stabilized output voltage when the load is decreased or the output voltage of the rectifier 103 increases due to increase of power supply voltage. A output voltage controller 106 comprising a discrete or a solid state element and controls the operating state of a shunt 105 and the output voltage of a main capacitor adjusting voltage current control power supply circuit. |
