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:
Oct. 29, 2013
Filed:
Jul. 29, 2009
Ruxi Wang, Blacksburg, VA (US);
Fred Wang, Blacksburg, VA (US);
Rolando Burgos, Cary, NC (US);
Dushan Boroyevich, Blacksburg, VA (US);
Kaushik Rajashekara, Carmel, IN (US);
Stephen A. Long, Carmel, IN (US);
Ruxi Wang, Blacksburg, VA (US);
Fred Wang, Blacksburg, VA (US);
Rolando Burgos, Cary, NC (US);
Dushan Boroyevich, Blacksburg, VA (US);
Kaushik Rajashekara, Carmel, IN (US);
Stephen A. Long, Carmel, IN (US);
Other;
Abstract
An electrical power system includes an alternating current (AC) power source configured to output an AC signal, a single phase pulse-width modulated (PWM) rectifier coupled to the AC power source and to an electrical load; a DC link capacitor coupled in parallel to the load and the PWM rectifier; and an active ripple energy storage circuit. The active ripple energy storage circuit has a first terminal, a second terminal and a third terminal, the active ripple energy storage circuit being coupled in parallel to the electrical load, the PWM rectifier and the DC link capacitor via the first terminal and the second terminal, the third terminal being coupled to the second terminal, the active ripple energy storage circuit being configured to selectively absorb and discharge at least part of the ripple energy.