Pulse-controlled converter and electric motor controller

Details Pulse-controlled converter and electric motor controller Pulse-controlled converter and electric motor controller

1993-07-07

1995-11-21

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318801, 363 26, 363134, H02M 75387

Patent

active

054690412

ABSTRACT:
The invention relates to a pulse-controlled converter, and a motor electric controller including such a converter. A first switch is controlled by pulses applied to its gate, these pulses being produced by a digital control unit linked to the gate of the first switch via a transformer. The transformer is linked to the digital control unit via a primary circuit and to the gate of the first switch via a secondary circuit. A second switch is directly controlled by the digital control unit. The secondary circuit includes a Zener diode and a resistor which are connected in series between a first terminal of a secondary winding of the transformer and the gate. The digital control unit generates a specific pulse synchronization sequence to control the converter so that problems of short-circuiting on the different bridge arms are avoided.

REFERENCES:
patent: 3678367 (1972-07-01), McMurray
patent: 4063146 (1977-12-01), Oliver
patent: 4155113 (1979-05-01), Simmons
patent: 4672521 (1987-06-01), Riesco
patent: 4742441 (1988-05-01), Akerson
patent: 4855891 (1989-08-01), Paul
patent: 4891764 (1990-01-01), McIntosh
patent: 5260861 (1993-11-01), Wert
patent: 5306988 (1994-04-01), Carobolante et al.

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