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:
Nov. 08, 2011
Filed:
Oct. 03, 2008
Shunsuke Matsubara, Yamanashi, JP;
Yasusuke Iwashita, Yamanashi, JP;
Yuuichi Yamada, Yamanashi, JP;
Shigeki Hanyu, Yamanashi, JP;
Masatomo Shirouzu, Yamanashi, JP;
Koujirou Sakai, Yamanashi, JP;
Shunsuke Matsubara, Yamanashi, JP;
Yasusuke Iwashita, Yamanashi, JP;
Yuuichi Yamada, Yamanashi, JP;
Shigeki Hanyu, Yamanashi, JP;
Masatomo Shirouzu, Yamanashi, JP;
Koujirou Sakai, Yamanashi, JP;
Fanuc Ltd, Yamanashi, JP;
Abstract
A motor driving apparatus having a converter, which receives AC voltage and converts it to DC power, and an inverter, which receives the DC power and converts it to AC power, includes a charge/discharge control circuit and a capacitor connected in parallel to a link section between the converter and the inverter, and energy stored in the capacitor Cis charged and discharged at arbitrary timing by the charge/discharge control circuit. The invention thus provides a motor driving apparatus that supplies energy to a motor so that the peak of the input current from a power supply to the motor can also be suppressed when particularly large energy is needed during the second half period of motor acceleration.