Title:
ENERGIZATION CONTROL CIRCUIT UNIT FOR SWITCHING CONTROL ELEMENT AND ON-VEHICLE ELECTRONIC CONTROL DEVICE INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2020088964
Kind Code:
A
Abstract:
To improve the switching efficiency of a switching element that intermittently controls an exciting current of an inductive load, and suppress the heat generation.SOLUTION: A switching control element 145 has a high-speed operating first switching element 145a and a highly conductive second switching element 145b connected in parallel, and includes a time difference control circuit 140A that generates a first gate voltage GT1 when a drive signal voltage GT0 is generated, and stops a second gate voltage GT2 and stops the first gate voltage GT1 stops after a first opening delay time Toff has elapsed when a second gate voltage GT2 is generated after a second closing delay time Ton has elapsed and the drive signal voltage GT0 is stopped, and the first switching element 145a shares switching transient loss and the second switching element 145b shares closed circuit conduction loss.SELECTED DRAWING: Figure 2
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Inventors:
NISHIDA MITSUTAKA
Application Number:
JP2018217043A
Publication Date:
June 04, 2020
Filing Date:
November 20, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02M3/155; F02M51/06; H03K17/687
Domestic Patent References:
| JP2015216420A | 2015-12-03 | |||
| JP2017175602A | 2017-09-28 | |||
| JP2002064975A | 2002-02-28 | |||
| JP2014047655A | 2014-03-17 | |||
| JP2011239550A | 2011-11-24 | |||
| JP2011200034A | 2011-10-06 | |||
| JPH0690151A | 1994-03-29 |
Foreign References:
| US6249111B1 | 2001-06-19 |
Attorney, Agent or Firm:
Patent Business Corporation Parumo Patent Office
Masuo Oiwa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa
Masuo Oiwa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa