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:
Jan. 21, 2020
Filed:
Oct. 15, 2018
Denso Corporation, Kariya, Aichi-pref, JP;
Yosuke Asako, Kariya, JP;
Akira Tokumasu, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A drive circuit drives a plurality of switches and sets a target threshold as a threshold compared to a physical quantity correlated with current flowing to a switching completion switch driven to complete switching from one of first and second states to the other. In the first state, a flow of current to at least one of the switches is allowed. In the second state, a flow of current to all of the switches is blocked. The drive circuit sets the target threshold to a first target threshold during at least a part of a first on-driving period in which only a switching completion switch is being on-driven and sets the target threshold to a second target threshold during at least a part of a second on-driving period in which all of the plurality of switches are being on-driven. The first target threshold is greater than the second target threshold.