The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2024
Filed:
Aug. 31, 2021
Applicant:
Omron Corporation, Kyoto, JP;
Inventors:
Noriyuki Nosaka, Kyoto, JP;
Junya Mishima, Kyoto, JP;
Mamoru Sueki, Kyoto, JP;
Wataru Okada, Kyoto, JP;
Assignee:
OMRON CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); H02M 1/00 (2006.01); H02M 3/156 (2006.01); H03K 19/017 (2006.01);
U.S. Cl.
CPC ...
H03K 17/687 (2013.01); H02M 1/0006 (2021.05); H02M 3/156 (2013.01); H03K 19/01714 (2013.01);
Abstract
In a switching circuit apparatus, first and second capacitors apply power supply voltages to first and second drive circuits. First and second diodes are connected such that currents flow from a DC voltage source to the first and second capacitors. A resistor and a Zener diode are connected in series between a terminal and a node, such that a reverse bias voltage is applied from the terminal to the Zener diode via the resistor. A third diode is connected such that a current flows to the first capacitor from a node (N) between the resistor and the Zener diode.