Invention Grant
- Patent Title: Output current monitor circuit for switching regulator
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Application No.: US14795147Application Date: 2015-07-09
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Publication No.: US09887625B2Publication Date: 2018-02-06
- Inventor: Seiichi Ozawa
- Applicant: Dialog Semiconductor (UK) Limited
- Applicant Address: GB Reading
- Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee Address: GB Reading
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Main IPC: H02M3/158
- IPC: H02M3/158 ; H03K5/1536 ; H02M3/156 ; H02M1/00

Abstract:
A circuit and method for providing an improved current monitoring circuit for a switching regulator. A circuit providing switching regulation with an improved current monitor, comprising a pulse width modulation (PWM) controller configured to provide P- and N-drive signals, an output stage connected to said PWM controller and configured to provide switching, comprising a high-side and low-side transistor, driven by said P- and N-drive signals, respectively, a sense circuit configured to provide output current sensing from the output stage during a sampling period when the N-drive signal is active, and a sampling timing generator configured to provide a an n-sampling signal, nsample, to the sense circuit, wherein a start of the n-sampling signal is delayed by a first delay after the sampling period and the n-sampling signal is ended prior to an end of the sampling period by a second delay.
Public/Granted literature
- US20170012527A1 Output Current Monitor Circuit for Switching Regulator Public/Granted day:2017-01-12
Information query
IPC分类: