Invention Grant
- Patent Title: Reverse current blockage through buck controller block
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Application No.: US14818186Application Date: 2015-08-04
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Publication No.: US10236763B2Publication Date: 2019-03-19
- Inventor: Zongqi Hu , Tiziano Pastore , Peter Vaughan , Yury Gaknoki , Jose Requinton Del Carmen, Jr. , Sundaresan Sundararaj
- Applicant: Power Integrations, Inc.
- Applicant Address: US CA San Jose
- Assignee: Power Integrations, Inc.
- Current Assignee: Power Integrations, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Christensen O'Connor Johnson Kindness PLLC
- Main IPC: H02M1/32
- IPC: H02M1/32 ; H02M3/156

Abstract:
A switching circuit with reverse current prevention for use in a Buck converter includes a power switch coupled to a coupling node, which is an interconnection point of a power switch, an inductor and a freewheeling diode of the Buck converter. The inductor is coupled between the coupling node and an output of the Buck converter, and the freewheeling diode is coupled between coupling node and an output return of the Buck converter. A controller is coupled to receive a feedback signal to control switching of the power switch to regulate a transfer of energy from the input to the output of the Buck converter. A reverse current prevention circuit is coupled to detect a reverse current condition of the power switch to generate an inhibit signal to inhibit the power switch from receiving a drive signal to prevent a reverse current through the power switch.
Public/Granted literature
- US20170040883A1 REVERSE CURRENT BLOCKAGE THROUGH BUCK CONTROLLER BLOCK Public/Granted day:2017-02-09
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