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:
Mar. 19, 2019
Filed:
Mar. 12, 2018
Tadasuke Yano, Aichi, JP;
Yuji Kohara, Aichi, JP;
Tadasuke Yano, Aichi, JP;
Yuji Kohara, Aichi, JP;
OMRON AUTOMOTIVE ELECTRONICS CO., LTD., Aichi, JP;
Abstract
A bidirectional DC-DC converter includes: a voltage conversion circuit; a first switch circuit connected between the voltage conversion circuit and a high-voltage DC power supply; a second switch circuit connected between the voltage conversion circuit and a low-voltage DC power supply; a smoothing capacitor provided between the first switch circuit and the voltage conversion circuit; and a control unit. The control unit controls the second switch circuit such that turn-on time of the second switch circuit gradually increases, and thereafter, controls the voltage conversion circuit such that a voltage-boosting switching element of the voltage conversion circuit is turned on and off. After a predetermined time elapses from when the voltage-boosting switching element starts to be turned on and off, the control unit turns off the voltage-boosting switching element and turns on the first switch circuit.