Invention Grant
- Patent Title: Linear charger circuit and method of operating linear charger circuit
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Application No.: US15664636Application Date: 2017-07-31
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Publication No.: US10439421B2Publication Date: 2019-10-08
- Inventor: Mihail Jefremow , Selcuk Talay , Fabio Rigoni
- Applicant: Dialog Semiconductor (UK) Limited
- Applicant Address: GB London
- Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee Address: GB London
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H02J7/04 ; H03K5/24 ; G05F1/00

Abstract:
A linear charger circuit and method for providing an output current at an output node is presented. The circuit contains a pass device connected between an input node and the output node, first and second replica devices connected in parallel to the pass device, with their control terminals coupled to a control terminal of the pass device. The first replica device is coupled to a first circuit path for determining whether current output by the linear charger circuit shall be terminated. The second replica device is coupled to a second circuit path for providing feedback for controlling the pass device, a control circuit coupled to the second circuit path for controlling the pass device based on a quantity indicative of a current flowing through the second circuit path, and a switching circuit coupled to the second circuit path.
Public/Granted literature
- US20190036353A1 Linear Charger Circuit and Method of Operating Linear Charger Circuit Public/Granted day:2019-01-31
Information query