Method and circuit for controlling and monitoring a load

A method and circuit is provided which controls and monitors a load through a single I/O pin of a microprocessor. A predriver circuit including a level shifter responds to a driver control signal from the microprocessor to control energization of a power driver connected in a load circuit. The predr...

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Bibliographische Detailangaben
Hauptverfasser:	LANGER, PETER, BILLS, PETER J
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CALCULATING COMPUTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION PHYSICS PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:	A method and circuit is provided which controls and monitors a load through a single I/O pin of a microprocessor. A predriver circuit including a level shifter responds to a driver control signal from the microprocessor to control energization of a power driver connected in a load circuit. The predriver circuit also includes a monitor stage for detecting fault conditions of the load circuit. The output of the monitor stage is connected with the I/O pin which is configured as either an input or an output pin under microprocessor program control.