Invention Grant
- Patent Title: Current limit through reference modulation in linear regulators
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Application No.: US16934334Application Date: 2020-07-21
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Publication No.: US11347249B2Publication Date: 2022-05-31
- Inventor: Avinash Shreepathi Bhat , Vadim Valerievich Ivanov
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Mark A. Valetti; Charles A. Brill; Frank D. Cimino
- Main IPC: G05F1/569
- IPC: G05F1/569 ; G05F1/575

Abstract:
A linear regulator system is described. The linear regulator system includes a linear regulator core circuit including a pass element adapted to provide an output voltage, and a voltage error amplifier circuit coupled to the pass element and adapted to regulate the output voltage to form a regulated output voltage, based on an output reference voltage. The linear regulator core circuit further includes a current limit circuit comprising a current limit switch element coupled to the voltage error amplifier circuit and adapted to selectively modulate the output reference voltage of the voltage error amplifier circuit to form a current limited reference voltage, based on a current limit control signal received at a current limit control terminal associated therewith, in order to limit a load current through the pass element from exceeding a predefined maximum allowable load current limit.
Public/Granted literature
- US20210080986A1 CURRENT LIMIT THROUGH REFERENCE MODULATION IN LINEAR REGULATORS Public/Granted day:2021-03-18
Information query
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