Invention Grant
- Patent Title: Multi-loop voltage regulator with load tracking compensation
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Application No.: US16249755Application Date: 2019-01-16
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Publication No.: US10775819B2Publication Date: 2020-09-15
- Inventor: Kevin Roy Vannorsdel , Yongjie Jiang , John Lynn McNitt , Jay Edward Ackerman
- Applicant: Avago Technologies International Sales Pte. Limited
- Applicant Address: SG Singapore
- Assignee: Avago Technologies International Sales Pte. Limited
- Current Assignee: Avago Technologies International Sales Pte. Limited
- Current Assignee Address: SG Singapore
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: G05F1/565
- IPC: G05F1/565 ; G05F1/575

Abstract:
A multi-loop voltage regulator with load tracking compensation includes a first closed-loop feedback network configured to receive a supply voltage from a power supply and drive an output voltage that is smaller than the supply voltage to a load. The multi-loop voltage regulator includes a second closed-loop feedback network connected to the first closed-loop feedback network and configured to regulate the output voltage between a first supply voltage rail and a second supply voltage rail for a given load current, in which the second closed-loop feedback network produces a gain that is greater than that of the first closed-loop feedback network. The multi-loop voltage regulator also includes a load tracking compensation circuit configured to detect a load current, and to increase the gain of the second closed-loop feedback network based on a dominant pole in the second closed-loop feedback network being a function of the detected load current.
Public/Granted literature
- US20200225689A1 MULTI-LOOP VOLTAGE REGULATOR WITH LOAD TRACKING COMPENSATION Public/Granted day:2020-07-16
Information query
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