Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1993-07-30
1996-12-31
Wong, Peter S.
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
323285, 363 80, G05F 163
Patent
active
055897592
ABSTRACT:
A circuit for detecting voltage variations in relation to a set value, for devices, such as a power supply circuit, comprising an error amplifier fed back by a compensating capacitor which, under steady state operating conditions, is not supplied with current, and, in the presence of transient output voltage (V.sub.o) of the device, is supplied with current (DI) proportional to the variation in voltage, the circuit comprising a current sensor connected to the compensating capacitor for detecting the current (DI) through the same; and the output signal of the sensor preferably being supplied to a circuit for limiting the variation in output voltage which, in the event the voltage variation exceeds a given threshold value (V.sub.R1), activates a control stage connected to the output of the device.
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Borgato Pierandrea
Diazzi Claudio
Pidutti Albino
Berhane Adolf
Driscoll David M.
Morris James H.
SGS--Thomson Microelectronics S.r.l.
Wong Peter S.
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