Voltage regulator with over-current protection

Details Voltage regulator with over-current protection Voltage regulator with over-current protection

2006-11-27

2009-10-13

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

Reexamination Certificate

active

07602162

ABSTRACT:
A linear regulator with an N-type pass transistor includes an over-current protection circuit. A current sink is used as an indicator for an over-current condition and is coupled to the output of the linear regulator. The indicator is coupled to a feedback logic circuit that controls the current through the output load. The over-current protection circuit extensively uses N-type devices for various components including the output driver stage in the circuit. This results in reduced area for the over-current protection circuit.

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(3errit W. den Besten and Bram Nauta, “I::mbedded ,5 V-tO-3.3 V Voltage Regulator for Supplying Digital IC's in 3.3 V CMOS Technology,” IEEE Journal of Solid-State Circuits, vol. 33, No. 7, dated Jul. 1998.
Gerrit W. den Besten and Bram Nauta, “Embedded 5 V-to-3.3 V Voltage Regulator for Supplying Digital IC's in 3.3 V CMOS Technology,” IEEE Journal of Solid-State Circuits, vol. 33, No. 7, dated Jul. 1998.

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