BI-DIRECTIONAL CURRENT SENSOR

A bidirectional current sensor circuit can be configured to generate a scaled version of a load current using a first transistor from a power regulator output stage and a second transistor that can be a mirror or scaled version of the first transistor. A trim circuit can be provided to correct gain...

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Bibliographische Detailangaben
Hauptverfasser:	BROKAW, PAUL A, CHAO, HIO LEONG
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CONTROLLING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS REGULATING SEMICONDUCTOR DEVICES SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TESTING
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Beschreibung
Zusammenfassung:	A bidirectional current sensor circuit can be configured to generate a scaled version of a load current using a first transistor from a power regulator output stage and a second transistor that can be a mirror or scaled version of the first transistor. A trim circuit can be provided to correct gain errors under current sinking or current sourcing conditions. In an example, the bidirectional current sensor circuit can be configured to detect a polarity or a magnitude of a current signal that is used to operate a thermoelectric device.