Invention Grant
- Patent Title: Power storage device discharge circuit, power storage system, and vehicle equipped with same
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Application No.: US17011046Application Date: 2020-09-03
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Publication No.: US11309586B2Publication Date: 2022-04-19
- Inventor: Hiroaki Tsukamoto , Yohsuke Mitani , Takahiro Kudo , Yoshimitsu Odajima
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JPJP2018-063271 20180328
- Main IPC: H01M10/42
- IPC: H01M10/42 ; H01M10/44 ; B60L58/10

Abstract:
A discharge circuit includes a plurality of burden circuits that are electrically connected in parallel to a plurality of power storage units, respectively. Each of the plurality of burden circuits includes (i) a resistor and a switch that are electrically connected in series between both ends of a corresponding one of the plurality of power storage units, and (ii) a control terminal that controls the switch according to a potential of the control terminal. The plurality of burden circuits are electrically connected in series between a positive electrode and a negative electrode. The control terminal of a n+1-th burden circuit from a reference point is electrically connected, via the switch of the n-th burden circuit from the reference point, to a reference point side terminal of a n-th power storage unit from the reference point. The reference point is the positive electrode or the negative electrode.
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