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. 07, 2009
Filed:
Jun. 28, 2006
Ying-chang Cheng, Taipei Hsien, TW;
Ying-Chang Cheng, Taipei Hsien, TW;
Zippy Technology Corp., Taipei Hsien, TW;
Abstract
An inverter control circuit with a resonant frequency modulation function provides a control circuit module that can modulate different resonant frequencies externally to fit loads of different modes without changing the inverter components such as a voltage transformer or redesigning the circuit layout. The RC oscillation circuit of a resonant frequency controller of the invention includes several separate resistors, and the separate resistors of the RC oscillation circuit are coupled to at least one switcher to form an open circuit or a closed circuit to determine the total resistance of the RC oscillation circuit for modulating different resonant frequencies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile