Invention Grant
- Patent Title: Digitally controlled zero current switching
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Application No.: US14757732Application Date: 2015-12-23
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Publication No.: US09819266B2Publication Date: 2017-11-14
- Inventor: Vaibhav Vaidya , Vivek K. De , Krishnan Ravichandran
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: INTEL CORPORATION
- Current Assignee: INTEL CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Grossman, Tucker, Perreault & Pfleger, PLLC
- Main IPC: H02M3/158
- IPC: H02M3/158

Abstract:
Generally, this disclosure describes an apparatus. The apparatus includes switch controller circuitry and zero crossing logic circuitry. The switch controller circuitry is to control a conduction state of a high side switch and a low side switch in a DC to DC converter. The zero crossing logic circuitry includes phase comparator circuitry, a first clocking circuitry and a second clocking circuitry. Each clocking circuitry includes one or more delay elements. The zero crossing logic circuitry is to monitor a switch node voltage, Vsw, and to determine whether Vsw is greater than a reference, Vref. The switch controller circuitry is to turn off a low side switch if Vsw is greater than Vref while the low side switch is turned on, Vsw greater than Vref corresponding to a negative inductor current.
Public/Granted literature
- US20170187283A1 Digitally controlled zero current switching Public/Granted day:2017-06-29
Information query
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