Blocking protection arrangement for electronically commutated DC

Details Blocking protection arrangement for electronically commutated DC Blocking protection arrangement for electronically commutated DC

1985-03-11

1987-03-31

Shoop, Jr., William M.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, 361 23, H02P 602

Patent

active

046545670

ABSTRACT:
The blocking protection arrangement includes a first transistor whose emitter-collector path lies in the base voltage supply of second and third switching transistors performing commutation. The first transistor receives its base voltage from a self-induction voltage of a stator winding. In the event of a blocking of a motor, this voltage is missing, so that the first transistor is rendered nonconductive.

REFERENCES:
patent: 3864610 (1975-02-01), Kawamoto et al.
patent: 3887844 (1975-06-01), Yoshida
patent: 3916272 (1975-10-01), Grunleitner et al.
patent: 4030005 (1977-06-01), Doemen
patent: 4070606 (1978-01-01), Morozumi et al.
patent: 4435673 (1984-03-01), Hagino et al.
patent: 4473782 (1984-09-01), Reinhardt et al.
"Hall Effect Devices and Their Applications", Electronics Industry, May 1979, pp. 23-27.

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