CONTROLLED RECTIFIER Russian patent published in 2017 - IPC H02M7/219 

FIELD: electricity.

SUBSTANCE: rectifier has power valves of parallel-connected transistors (1-6) and diodes (7-12) included in the three-phase bridge circuit, a sawtooth voltage generator (27) and control system units (28-30), diode cathodes (7, 9, 11) are connected to the first terminal of the capacitor (13) and to the positive terminal, and the anodes of the diodes (8, 10, 12) are connected to the first terminal of the capacitor (14) and to the negative terminal, the second terminals of the capacitors (13, 14) are connected to the common wire. Inputs A, B, C are connected via throttles (15-17) to the middle points of the shoulders. What is new is that voltage sensors (19-22), current sensors (23-25), connected in series with the throttles (15-17), and a current sensor (26) connected in series with the rectifier load are introduced into the rectifier. The control system units are implemented in accordance with the principles of combined control.

EFFECT: sinusoidal input currents with a single power factor, adjustable stabilized output voltage and small mass-dimensional parameters.

2 dwg