Temperature insensitive foldback network

Details Temperature insensitive foldback network Temperature insensitive foldback network

1998-02-21

1999-03-23

Nguyen, Matthew

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323284, G05F 156

Patent

active

058865110

ABSTRACT:
A foldback circuit which responds to a voltage differential between the input and output terminals of a voltage regulator in excess of a foldback threshold by lowering the current limit threshold of a current limit circuit. The foldback circuit includes a transistor with a base coupled to the input voltage and an emitter coupled to the output voltage. The collector when conducting provides a current that decreases the current limit threshold. Diodes in the path between the input and output voltages through the transistor may be used in establishing the foldback threshold.

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