Title:
SWITCHING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/081856
Kind Code:
A1
Abstract:
A switching circuit configured of a main switching element (1) and a drive circuit (2), wherein the main switching element (1) has a gate terminal (G), a drain terminal (D), a first source terminal (S) through which a main current flows, and a gate-driving second source terminal (SS) connected to the drive circuit (2). The drive circuit (2) has: a bias capacitor (10) in which the negative-electrode terminal is connected to the second source terminal (SS); a first series circuit formed so that a high-side switch (3), a resistor (6), and a capacitor (7) are connected in series between the positive-electrode terminal and the gate terminal (G); and a second series circuit formed so that the capacitor (7), a resistor (8), and a low-side switch (4) are connected in series between the gate terminal (G) and the second source terminal (SS). The gate charge/discharge currents are adjusted and pulsation in the gate current/voltage waveforms is suppressed.
Inventors:
ISHII TAKUYA
ARISAWA DAIJIRO
ITO MASANORI
HASHIMOTO TAKAO
AZUMA TAKESHI
ISHITSUBO MIWA
MURATA KAZUHIRO
ARISAWA DAIJIRO
ITO MASANORI
HASHIMOTO TAKAO
AZUMA TAKESHI
ISHITSUBO MIWA
MURATA KAZUHIRO
Application Number:
PCT/JP2016/004810
Publication Date:
May 18, 2017
Filing Date:
November 04, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H03K17/16; H01L21/822; H01L27/04; H02M1/08; H03K17/687
Foreign References:
| JP2012239361A | 2012-12-06 | |||
| JP2013013044A | 2013-01-17 | |||
| JPH0758613A | 1995-03-03 | |||
| JP2010252568A | 2010-11-04 | |||
| US20040042139A1 | 2004-03-04 |
Attorney, Agent or Firm:
KAMATA, Kenji et al. (JP)
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