Circuit for the controlled recycle without oscillation of a disc

Details Circuit for the controlled recycle without oscillation of a disc Circuit for the controlled recycle without oscillation of a disc

1997-04-28

1999-06-29

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307112, 307130, 307131, 327110, H01H 4700

Patent

active

059172541

ABSTRACT:
A circuit for the controlled recycle without oscillation of a discharge current from an inductive load. The circuit comprises an active element connected, in series with the inductive load, between first and second power supply terminals, and having a control terminal to which a driver circuit is connected. The circuit further includes a recycling regulating circuitry connected to a connection node between the active element and the inductive load, and sensitive to a voltage threshold at the connection node to generate, depending on attainment of that threshold, a power-on signal for application to the control terminal effective to start up recycling of the discharge current through the active element. The circuit further comprises a control circuit for controlling the voltage oscillation at the connection node at the end of the recycling. The control circuit includes a circuit having a relatively low resistive impedance and being selectively connectable, at least upon the active element being turned off at the end of the recycling, between the connection node and a node having a substantially zero impedance toward at least one of the first and second power supply terminals.

REFERENCES:
patent: 5111353 (1992-05-01), Kotowski et al.

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