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Supervisory Circuits

Supervisory circuits are electronic circuits that monitor one or more parameters of systems such as power supplies and microprocessors which must be maintained within certain limits,and take appropriate action if a parameter goes out of bounds, creating an unacceptable or dangerous situation. Supervisory circuits are known by a variety of names, including battery monitors, power supply monitors, supply supervisory circuits, and reset circuits. A thermal protection circuit consists of a temperature-monitoring circuit and a control circuit. The control circuit may either shut down the circuitry it is protecting, reduce the power available in order to avoid overheating, or notify the system (software or user). These circuits may be quite complex, programmable and software-run, or simple with predefined limits. Voltage protection circuits protect circuitry from either over- or undervoltage; either of these situations can have detrimental effects. Two types of overvoltage protection devices are currently used: clamping, which passes through voltages up to a certain level, and foldback, which shunts voltage away from the load. The shunting creates a short circuit which removes power from the protected circuitry.[3] In certain applications this circuitry can reset itself after the dangerous condition has passed.

Power Management > Supervisory Circuits > Processor Supervisory

Part No.	DS	Manufacturer	D/C	Qty	Region	Action
RNA50C27AUSEL-E		Renesas	-	7050	China	Request A Quote

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