Invention Grant
- Patent Title: Augmented multi-stage boost converter
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Application No.: US16692072Application Date: 2019-11-22
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Publication No.: US10917013B2Publication Date: 2021-02-09
- Inventor: John L. Melanson , Eric J. King , Jason W. Lawrence
- Applicant: Cirrus Logic International Semiconductor Ltd.
- Applicant Address: GB Edinburgh
- Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee Address: GB Edinburgh
- Agency: Jackson Walker L.L.P.
- Main IPC: H02M3/158
- IPC: H02M3/158 ; H02M1/00 ; H02M1/40 ; H02M1/44 ; H01F27/28 ; H01F38/02

Abstract:
A boost converter may include a first stage comprising a first dual anti-wound inductor constructed such that its windings generate opposing magnetic fields in its magnetic core, and a second stage comprising a second dual anti-wound inductor constructed such that its windings generate opposing magnetic fields in its magnetic core. The boost converter may also include control circuitry for controlling the first stage and the second stage to have a plurality of phases comprising a first phase wherein a first coil of the first dual anti-wound inductor and a second coil of the second dual anti-wound inductor are coupled in parallel between a power supply and a ground voltage and a second phase wherein the first coil of the first dual anti-wound inductor and the second coil of the second dual anti-wound inductor are coupled in series between the power supply and the ground voltage.
Information query
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