Switching device driving circuit

Details Switching device driving circuit Switching device driving circuit

1990-07-12

1992-03-24

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307571, 307254, 307443, 307270, H03K 1760

Patent

active

050991388

ABSTRACT:
Upper and lower arm monitoring circuits (13U, 13L) monitor on/off states of upper and lower arm switching devices (2U, 2L). The on/off command signal generating part (7) generates command signals for directing on/off of the switching devices (2U, 2L). Upper and lower arm decision circuits (12U, 12L) alternatively drive the upper and lower arm switching devices (2U, 2L) under predetermined conditions on the basis of monitoring signals from the monitoring circuit (13U, 13L) and the command signals. Thus, a dead time is necessarily automatically provided between the turning-off of one of the switching devices (2U, 2L) and the turning-on of the other of the switching devices (2U, 2L), without setting an upper and lower arm dead time for the command signals.

REFERENCES:
patent: 4682054 (1987-07-01), McLaughlin
patent: 4733110 (1988-03-01), Hara et al.
patent: 4783690 (1988-11-01), Walden et al.
patent: 4814638 (1989-03-01), Weick
patent: 4825102 (1989-04-01), Iwasawa et al.
patent: 4876635 (1989-10-01), Park et al.
patent: 4902914 (1990-02-01), Masuoka
patent: 4910416 (1990-03-01), Salcone
patent: 5001365 (1991-03-01), Murabayashi et al.
patent: 5001369 (1991-03-01), Lee

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