Control circuit

Details Control circuit Control circuit

1998-01-20

1999-08-10

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323284, 323351, G05F 140, H01F 1700

Patent

active

059363908

ABSTRACT:
A control circuit for controlling a current switch to provide current to a load circuit, includes a hysteresis trigger circuit arranged to selectively switch on the current switch in dependence upon a control signal. A transistor is arranged to selectively provide an operating current to the hysteresis trigger circuit in dependence upon the control signal. In this way operating current is only supplied to the hysteresis trigger circuit when the control signal is high, such that the load circuit does not draw current when the control signal is low.

REFERENCES:
patent: 3671767 (1972-06-01), Davis
patent: 4692688 (1987-09-01), Stanojevic
patent: 4758773 (1988-07-01), Fushimi et al.
patent: 4887022 (1989-12-01), Gontowski
patent: 5195016 (1993-03-01), Powers
patent: 5796276 (1998-08-01), Phillips et al.
"A 70 M.OMEGA. Intelligent High Side Switch With Full Diagnostics", Gariboldi et al., IEEE Journal of Solid-State Circuits, vol. 31, No. 7, Jul. 1996, pp. 915-923, XP000632376.

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