Title:
CONTROL SYSTEM AND CONTROL METHOD FOR DUAL-GATE BIDIRECTIONAL SWITCH
Document Type and Number:
WIPO Patent Application WO/2022/009492
Kind Code:
A1
Abstract:
The present invention suppresses current collapse in a normally-ON dual-gate bidirectional switch. A dual-gate bidirectional switch (1) has a first gate (G1), a first source (S1), a second gate (G2), and a second source (S2). A control system (10) is provided with a first gate drive circuit (11), a second gate drive circuit (12), and a controller (13). The controller (13) controls the first gate drive circuit (11) and the second gate drive circuit (12). In the event that the potential of the first source (S1) is lower than the potential of the second source (S2) when the dual-gate bidirectional switch (1) is turned ON, the controller (13) applies a first positive voltage between the first gate (G1) and first source (S1) from the first gate drive circuit (11) for only a first period, and applies a voltage smaller than the first positive voltage after the first period has elapsed.
Inventors:
KINOSHITA YUSUKE
NOMURA MASANORI
NAKAZAWA SATOSHI
NOMURA MASANORI
NAKAZAWA SATOSHI
Application Number:
PCT/JP2021/015260
Publication Date:
January 13, 2022
Filing Date:
April 13, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02M1/08; H03K17/04; H03K17/687
Domestic Patent References:
| WO2017159559A1 | 2017-09-21 |
Foreign References:
| JP2010166301A | 2010-07-29 | |||
| JP2013530625A | 2013-07-25 | |||
| JP2018196026A | 2018-12-06 | |||
| JP2012527178A | 2012-11-01 | |||
| JP2009239214A | 2009-10-15 | |||
| JP2015050864A | 2015-03-16 | |||
| US20160261266A1 | 2016-09-08 | |||
| JP2020068629A | 2020-04-30 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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