Low power high side current monitor which operates at high voltages and method therefor

A low power high side current monitor has an input terminal and a load terminal. A current sensing element is coupled to the input terminal and the load terminal. A first resistor is coupled to the input terminal. A first pair of transistors is coupled together and to the first resistor. A second pa...

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Bibliographische Detailangaben
Hauptverfasser:	KO ISAAC T, HO IRIS Y.M
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CONTROLLING ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PULSE TECHNIQUE REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TESTING
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Beschreibung
Zusammenfassung:	A low power high side current monitor has an input terminal and a load terminal. A current sensing element is coupled to the input terminal and the load terminal. A first resistor is coupled to the input terminal. A first pair of transistors is coupled together and to the first resistor. A second pair of transistors is coupled together and to the first pair of transistors. A third pair of transistors is coupled together and to the second pair of transistors. At least one diode is coupled to the second pair of transistors and the third pair of transistors. A transistor has a first terminal coupled to the third pair of transistors and a second terminal coupled to the second pair of transistors. A second resistor is coupled to a third terminal of the transistor and to ground.