US 12,255,640 B2
Driving circuit for switching element and switching circuit
Noriyuki Nosaka, Kyoto (JP); Hironori Tauchi, Kyoto (JP); Takuro Hashimoto, Kyoto (JP); Wataru Okada, Kyoto (JP); Mamoru Sueki, Kyoto (JP); and Satoshi Iwai, Kyoto (JP)
Assigned to OMRON CORPORATION, Kyoto (JP)
Appl. No. 18/245,930
Filed by OMRON Corporation, Kyoto (JP)
PCT Filed Sep. 7, 2021, PCT No. PCT/JP2021/032872
§ 371(c)(1), (2) Date Mar. 20, 2023,
PCT Pub. No. WO2022/070806, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 2020-166953 (JP), filed on Oct. 1, 2020.
Prior Publication US 2023/0387912 A1, Nov. 30, 2023
Int. Cl. H03K 17/687 (2006.01); H03K 17/0412 (2006.01); H03K 17/16 (2006.01)
CPC H03K 17/6871 (2013.01) [H03K 17/04123 (2013.01); H03K 17/168 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A driving circuit that drives a switching element, the driving circuit comprising:
a controller that includes a first terminal connected to a gate terminal of the switching element via a first connecting wire and a second terminal connected to a source terminal of the switching element via a second connecting wire, and outputs a control signal from the first terminal to the gate terminal;
a first capacitor and a first resistor connected in parallel; and
a second capacitor and a second resistor connected in parallel,
wherein the first capacitor and the first resistor are connected in series to the first connecting wire on the gate terminal side of the first connecting wire,
wherein the second capacitor and the second resistor are connected in series to the first connecting wire on the first terminal side of the first connecting wire,
wherein a first diode and a third resistor connected in series are connected in parallel to the second capacitor and the second resistor, and
wherein a cathode terminal of the first diode is connected to the first terminal.