Invention Grant
- Patent Title: Rapid discharge of power nodes
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Application No.: US17031764Application Date: 2020-09-24
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Publication No.: US11387733B2Publication Date: 2022-07-12
- Inventor: Shawn Searles , Fabio Gozzini
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Agent Erik A. Heter; Dean M. Munyon
- Main IPC: H02M1/36
- IPC: H02M1/36 ; H02M3/158 ; H02M1/32

Abstract:
A method and apparatus for rapid discharge of power rails is disclosed. A circuit includes a power converter circuit includes an inductor coupled between a switch node and regulated power supply node. A first device is coupled between an input power supply node and the switch node, while a second device is coupled between the switch node and a ground node. The power converter is configured to generate a particular voltage level on the regulated power supply node by controlling the first and second devices. The circuit also includes a control circuit which, in response to receiving a discharge comment, repeatedly activates and deactivates the second device to discharge, via the switch node and the inductor, the regulated power supply node.
Public/Granted literature
- US20220094267A1 Rapid Discharge of Power Nodes Public/Granted day:2022-03-24
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