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:
May. 11, 2010
Filed:
Dec. 05, 2006
Richard Oswald, San Jose, CA (US);
Tamotsu Yamamoto, Cupertino, CA (US);
Takashi Ryu, Kyoto, JP;
Hirohisa Tanabe, Kyoto, JP;
Masaaki Koto, Osaka, JP;
Richard Oswald, San Jose, CA (US);
Tamotsu Yamamoto, Cupertino, CA (US);
Takashi Ryu, Kyoto, JP;
Hirohisa Tanabe, Kyoto, JP;
Masaaki Koto, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A switching regulator circuit including a high-side switch and a low-side switch; an inductor having a first terminal coupled to a common terminal between the high-side switch and the low-side switch, and a second terminal coupled to an output terminal of the switching regulator circuit; a low-pass filter coupled to the first terminal of the inductor, where the low-pass filter is operative for generating a ramp signal based on the voltage signal present at the first terminal of the inductor; and a hysteretic comparator coupled to the low pass filter, where the hysteretic comparator receives the ramp signal as an input signal, and generates an output signal which is operative for controlling the operation of the high-side switch and the low-side switch.