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:
Jun. 22, 2010
Filed:
May. 07, 2007
Jing HU, Neubiberg, DE;
Kok Kee Lim, Singapore, SG;
Meng Kiat Jeoh, Singapore, SG;
Xiao Wu Gong, Singapore, SG;
Yi He, Wellington Circle, SG;
Jing Hu, Neubiberg, DE;
Kok Kee Lim, Singapore, SG;
Meng Kiat Jeoh, Singapore, SG;
Xiao Wu Gong, Singapore, SG;
Yi He, Wellington Circle, SG;
Infineon Technologies AG, Neubiberg, DE;
Abstract
An integrated circuit includes an operational amplifier configured to receive a current sense voltage (V) at a first input and an offset voltage at a second input. A comparator is coupled to the operational amplifier and adapted to receive at a first input an output voltage signal (V) of the operational amplifier. A voltage limiting circuit is configured to receive a regulation voltage. A fold back correction circuit is coupled to the voltage limiting circuit and to a second input of the comparator. A pulse width modulator circuit is coupled to the comparator and is adapted to receive the output of comparator.