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:
Jul. 04, 2023
Filed:
Jun. 27, 2022
Seiko Epson Corporation, Tokyo, JP;
Junpei Nakayama, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A motor drive circuit for a robot includes a switching unit switching among a normal state in which regenerative power is supplied to a regenerative capacitor, a first state in which a voltage is applied to a first resistor, and a second state in which a voltage is applied to the first resistor and a second resistor based on a detection result of a detection unit, wherein the switching unit switches to the first state when the voltage applied to the regenerative capacitor detected in the detection unit is equal to or larger than a first threshold in the normal state, and switches to the second state when the voltage applied to the first resistor is equal to or larger than a second threshold larger than the first threshold in the first state.