Title:
SWITCHING ELEMENT DRIVING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/055900
Kind Code:
A1
Abstract:
The purpose of the present invention is to suitably control a switching element to an off state even in a case when a switching control signal is amplified, and the supply of power to a driving circuit transmitted to the switching element is delayed. Provided are: a compensation resistor (R2) that connects an input unit (IN) and an output unit (OUT) of a push-pull buffer circuit (21); and an input-side pull-down resistor (R3) that connects the input unit (IN) and a negative electrode (VG) side of a switching element (3) subject to driving. The sum of the resistance value of the compensation resistor (R2) and the resistance value of the input-side pull-down resistor (R3) is set to a value that is smaller than the resistance value of a resistor (R1) between a control terminal (G) of the switching element (3) subject to driving and an emitter terminal or a source terminal (S) of the switching element (3), and greater than the resistance value of a lower-side current controlling resistor (R21L) connected between a second potential (–V2) more negative than the negative electrode (VG) and a lower-side buffer element (21L).
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Inventors:
TAKAKURA YUJI (JP)
NAKAMURA YASUSHI (JP)
NAKAMURA YASUSHI (JP)
Application Number:
PCT/JP2017/027059
Publication Date:
March 29, 2018
Filing Date:
July 26, 2017
Export Citation:
Assignee:
AISIN AW CO (JP)
International Classes:
H03K17/695; H02M1/08; H03K17/16; H03K17/56; H03K17/687
Foreign References:
| JP2013062965A | 2013-04-04 | |||
| JP2000253646A | 2000-09-14 | |||
| JPH03141720A | 1991-06-17 | |||
| JP2012034450A | 2012-02-16 | |||
| JP2015205574A | 2015-11-19 |
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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