Title:
DRIVING CIRCUIT AND CONTROL BOARD
Document Type and Number:
WIPO Patent Application WO/2022/024915
Kind Code:
A1
Abstract:
A driving circuit according to the present invention controls driving of a switching element by outputting a drive signal to the switching element. The driving circuit is provided with an air core transformer having a plurality of primary windings and a secondary winding magnetically coupled to each of the plurality of primary windings. The air core transformer is such that AC signals are input into each of the plurality of primary windings. The plurality of primary windings include a first primary winding and a second primary winding. A phase difference exists between the AC signal that is input into the first primary winding and the AC signal that is input into the second primary winding.
Inventors:
UMEGAMI HIROKATSU (JP)
YAMAGUCHI ATSUSHI (JP)
ISHITOBI MANABU (JP)
YAMAGUCHI ATSUSHI (JP)
ISHITOBI MANABU (JP)
Application Number:
PCT/JP2021/027294
Publication Date:
February 03, 2022
Filing Date:
July 21, 2021
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H01F17/00; H01F27/28; H02M1/08; H03K17/691
Domestic Patent References:
| WO2013042754A1 | 2013-03-28 |
Foreign References:
| US20160173068A1 | 2016-06-16 | |||
| JP2011091597A | 2011-05-06 | |||
| US6366618B1 | 2002-04-02 | |||
| US5038051A | 1991-08-06 |
Attorney, Agent or Firm:
USUI Takashi et al. (JP)
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