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:
Apr. 28, 2009
Filed:
Nov. 23, 2006
Jy-der David Tai, Phoenix, AZ (US);
Jy-Der David Tai, Phoenix, AZ (US);
Tai-1 Microelectronics Corp., Taipei Hsien, TW;
Abstract
The circuit contains an input signal unit, an amplifier unit, and a comparator unit, cascaded in the foregoing order. The circuit further contains a ramp generator unit providing a ramp signal to the comparator unit. In one embodiment of the present invention, at least one of the two links between the input signal unit and the amplifier unit is connected to a voltage unit. By providing an appropriate voltage through the voltage unit, the signals fed into the amplifier unit have different DC bias voltages. As such, the ramp signal crosses these signals at different points of time respectively, and the zero-crossing times of the first and second Class-D signals output by the comparator unit are thereby separated so as to achieve low switching noise and electromagnetic interference.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile