Invention Grant
- Patent Title: Current feedback and offset voltage cancellation for DC-DC converter
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Application No.: US14563840Application Date: 2014-12-08
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Publication No.: US09641075B2Publication Date: 2017-05-02
- Inventor: Ralf Beier , Gerhard Osterloh , Rodrigo Mora-Sanchez
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: H02M3/156
- IPC: H02M3/156 ; H02M3/158 ; H02M1/00

Abstract:
Embodiments of current feedback circuits for Direct Current (DC)-DC converters and methods for operating current feedback circuits for DC-DC converters are described. In one embodiment, a current feedback circuit for a DC-DC converter includes a current replication circuit configured to provide current feedback to the DC-DC converter based on an on-time of the DC-DC converter and an alternating current (AC)-coupling circuit configured to add the current feedback to a regulation circuit of the current feedback circuit and to remove a DC voltage from the current replication circuit. The regulation circuit includes a filter circuit configured to compensate for an offset of an output voltage of the DC-DC converter caused by the current feedback. Other embodiments are also described.
Public/Granted literature
- US20160164409A1 CURRENT FEEDBACK AND OFFSET VOLTAGE CANCELLATION FOR DC-DC CONVERTER Public/Granted day:2016-06-09
Information query
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