	US 12,191,761 B2
	Integrated circuit and power supply circuit
Hiroshi Maruyama, Matsumoto (JP); and Takato Sugawara, Matsumoto (JP)
Assigned to FUJI ELECTRIC CO., LTD., Kawasaki (JP)
Filed by FUJI ELECTRIC CO., LTD., Kawasaki (JP)
Filed on Aug. 27, 2021, as Appl. No. 17/458,704.
Claims priority of application No. 2020-195998 (JP), filed on Nov. 26, 2020.
Prior Publication US 2022/0166309 A1, May 26, 2022
Int. Cl. H02M 1/42 (2007.01); H02M 1/00 (2006.01); H02M 1/08 (2006.01); H02M 3/158 (2006.01); H02M 3/335 (2006.01); H02M 7/217 (2006.01)

CPC H02M 1/4225 (2013.01) [H02M 1/0022 (2021.05); H02M 1/08 (2013.01); H02M 3/158 (2013.01); H02M 3/33507 (2013.01); H02M 3/3353 (2013.01); H02M 7/217 (2013.01)]

19 Claims

1. A signal output circuit comprising:

a first transistor coupled to a power supply line to receive a power supply voltage;

a diode provided between the power supply line and a gate electrode of the first transistor; and

a current generation circuit provided on a side of a ground with respect to the diode, the current generation circuit being configured to

generate a current for the diode, upon turning on of the first transistor, and

increase the current, upon the power supply voltage dropping below a first level.