| 摘要 |
FIELD: electricity.SUBSTANCE: converter includes a storage capacitor unit, one armature of which is connected through load of AC output to cathode of input diode connected through anode to the first terminal of the network; cathode of input diode is connected to anode of thyristor, the cathode of which is output of DC load and controlled with phase control system synchronised from the network, which consists of pulse transformer and link of shaping a control signal of thyristor, the second output of DC load is formed with connection point of the second terminal of network with diode anode, through which the discharging of storage capacitor unit is performed at negative half-wave of supply voltage, and diode cathode is connected to the other armature of storage capacitor unit and diode anode, through which the charging of storage capacitor unit is performed at positive half-wave of supply voltage, the cathode of which is connected to thyristor cathode and positive output of DC load; with that, thyristor phase control system includes stage of variable time delay of thyristor activation voltage, which includes shaper of clock pulses, which is connected with input to secondary winding of pulse transformer, and output to the inverting C-input of N-discharge pulse counter, the discharge outputs of which are switched with a switch that is connected with output to input of pulse amplifier and to R-input of counter zero setting, and output voltage of pulse amplifier through an isolating diode is thyristor activation voltage.EFFECT: reduction of mass and dimensional properties, improvement of reliability and enlargement of control range.2 dwg |
