Circuit configuration for monitoring and/or regulating...

Details Circuit configuration for monitoring and/or regulating... Circuit configuration for monitoring and/or regulating...

2006-09-26

2006-09-26

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

C307S044000

Reexamination Certificate

active

07113375

ABSTRACT:
A circuit configuration for monitoring and/or for regulating supply voltages. The circuit enables at least two supply voltages (U12) or (U22) that are produced by means of two feed-ins (Q1, Q2) and that are provided for consumer circuits (V1, V2) to be monitored and limited simultaneously. To this end, the circuit configuration comprises a corresponding voltage monitoring electronics unit which detects the supply voltages (U12, U22) and compares them with associated tolerance values (ΔU12, ΔU22). The voltage monitoring electronics unit also provides a control signal (y) which signals whether the first supply voltage (U12) is lower than the associated tolerance value (ΔU12). The control signal (y) is used to control a shunt electronics unit through which a shunt current (IS) passes temporarily. Said shunt current (IS) is fed by feed-in (Q1) and by feed-in (Q2) and passes through the shunt electronics unit at least when the control signal (y) signals that at least the supply voltage (U12) is greater than the associated tolerance value (ΔU12).

REFERENCES:
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patent: 6597592 (2003-07-01), Carsten
patent: 3906621 (1990-04-01), None
patent: 0845848 (1998-06-01), None
patent: 2253956 (1992-09-01), None
JP 4 8188 A English abstract.

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