Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-05-16
1990-08-21
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307270, 307571, 307314, H03K 1774, H03K 301, H03K 17687, H03K 345
Patent
active
049509195
ABSTRACT:
In this MOS-transistor bridge circuit, for obtaining a fast flyback conduction of the current after a normal operation of the circuit, instead of the flyback diodes associated with each transistor of the bridge, the MOS transistors themselves are employed, driven so as to conduct current from the ground to the power supply, that is in the opposite direction with respect to that of normal operation. For this purpose a control section is provided receiving at the input a fast flyback signal and comprising delay gates connected to the disable inputs of the transistors, so as to delay switching off thereof, and to maintain in the on state two diagonally opposed transistors so as to allow current to flow from the ground to the power supply through these diagonally opposed transistors and the load until the current decreases to zero.
REFERENCES:
patent: 3400304 (1968-09-01), Ziegler
patent: 3435375 (1969-03-01), Miller, Jr.
patent: 3448299 (1969-06-01), Hierholzer, Jr. et al.
patent: 3934173 (1976-01-01), Korver
patent: 4024433 (1977-05-01), Korver
patent: 4112428 (1978-09-01), Dorsman
patent: 4433357 (1984-02-01), Nishimura et al.
patent: 4454454 (1984-06-01), Valentine
patent: 4540899 (1985-09-01), Pelly
patent: 4541389 (1985-09-01), Kosak et al.
patent: 4683387 (1987-07-01), Jones et al.
patent: 4737696 (1988-04-01), Yokogawa et al.
Cini Carlo
Diazzi Claudio
Rossi Domenico
Josif Albert
Miller Stanley D.
Modiano Guido
Phan Trong Quang
SGS-Thomson Microelectronics S.p.A.
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