Title:
DRIVER CIRCUIT AND SWITCH SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/241158
Kind Code:
A1
Abstract:
According to the present invention, a turn-on time is shortened without using a large-capacitance capacitor. A speed-up circuit (14) is provided between a power supply terminal (11) and a gate (21) of a semiconductor switch element (2). An impedance element (15) is provided between a signal input terminal (13) and a node (N1) between the speed-up circuit (14) and the gate (21) of the semiconductor switch element (2). In the speed-up circuit (14), a second field-effect transistor (Q2) is connected in series to a first field-effect transistor (Q1), and is connected to the gate (21) of the semiconductor switch element (2). The impedance of the impedance element (15) is higher than the impedance of the speed-up circuit (14) when both the first field-effect transistor (Q1) and the second field-effect transistor (Q2) are turned on.
Inventors:
KINOSHITA YUSUKE
ICHIRYU TAKASHI
KANOMATA RYUSUKE
ISHIDA HIDETOSHI
ICHIRYU TAKASHI
KANOMATA RYUSUKE
ISHIDA HIDETOSHI
Application Number:
PCT/JP2020/018104
Publication Date:
December 03, 2020
Filing Date:
April 28, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02M1/08; H03K17/04; H03K17/0412; H03K17/60; H03K17/687
Domestic Patent References:
| WO2017081856A1 | 2017-05-18 | |||
| WO2012157118A1 | 2012-11-22 |
Foreign References:
| JP2008193717A | 2008-08-21 | |||
| JP2008066929A | 2008-03-21 | |||
| JP2015204661A | 2015-11-16 | |||
| JPH05291939A | 1993-11-05 | |||
| JP2012527178A | 2012-11-01 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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