Invention Grant
- Patent Title: Hot swap inrush current limiter circuit
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Application No.: US16113655Application Date: 2018-08-27
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Publication No.: US10971923B2Publication Date: 2021-04-06
- Inventor: Xiqun Zhu , Sung Kee Baek
- Applicant: CISCO TECHNOLOGY, INC.
- Applicant Address: US CA San Jose
- Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee: CISCO TECHNOLOGY, INC.
- Current Assignee Address: US CA San Jose
- Agent Cindy Kaplan
- Main IPC: H02H9/00
- IPC: H02H9/00 ; H02H9/02

Abstract:
In one embodiment, a hot swap inrush current limiter circuit includes a pair of paths connecting an input and a load, a first capacitor connected in series with a switch between the paths, a first resistor connected to one of the paths and to a junction between the switch and the first capacitor, a second capacitor connected in series with a second resistor between the paths, with a gate of the switch connected to a junction between the second capacitor and the second resistor, a first diode connected in parallel with the second capacitor, and a second diode connected in parallel with the second resistor to allow for discharge of the second capacitor when input power is off. A method is also disclosed herein.
Public/Granted literature
- US20200067305A1 HOT SWAP INRUSH CURRENT LIMITER CIRCUIT Public/Granted day:2020-02-27
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