Title:
SWITCHING CIRCUIT DEVICE AND POWER CONVERSION DEVICE
Document Type and Number:
Japanese Patent JP2022041668
Kind Code:
A
Abstract:
To synchronously turn on and off a plurality of switching elements while comprising a boot strap circuit.SOLUTION: Capacitors C1, C2 apply power supply voltage to drive circuits DRV1, DRV2, respectively. Diodes D1, D2 are connected so that current flows from a DC voltage source E1 to the capacitors C1, C2, respectively. A resistor R1 and a Zener diode ZD1 are serially connected between a terminal P1 and a node N1 so that reverse bias voltage is applied from the terminal P1 to the Zener diode ZD1 via the resistor R1. A diode D3 is connected so that current flows from a node N2 between the resistor R1 and the Zener diode ZD1 to the capacitor C1.SELECTED DRAWING: Figure 1
Inventors:
NOSAKA NORIMOTO
MISHIMA JUNYA
SUEKI AOI
OKADA WATARU
MISHIMA JUNYA
SUEKI AOI
OKADA WATARU
Application Number:
JP2020147014A
Publication Date:
March 11, 2022
Filing Date:
September 01, 2020
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
H02M1/08; H03K17/06; H03K17/10
Attorney, Agent or Firm:
Takuji Yamada
Hidehiro Tokuyama
Mitsuo Wada
Hidehiro Tokuyama
Mitsuo Wada