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:
Aug. 06, 2013
Filed:
Apr. 27, 2011
Young Suk Son, Daejeon-si, KR;
Tae Kyu Nam, Incheon-si, KR;
Won Suk Jang, Gunpo-si, KR;
Hyung Seog OH, Daejeon-si, KR;
Young Suk Son, Daejeon-si, KR;
Tae Kyu Nam, Incheon-si, KR;
Won Suk Jang, Gunpo-si, KR;
Hyung Seog Oh, Daejeon-si, KR;
Silicon Works Co., Ltd., Daejeon-Si, KR;
Abstract
A driver IC for electrical loads, suitable for regulating a driving voltage depending upon a feedback signal and supplying a regulated driving voltage to a power supply line to which load strings are connected in parallel. The driver IC includes driving current sources respectively connected to the load strings through regulated voltage nodes and configured to supply driving current to the load strings in response to a control signal; sensing units configured to sense and output a minimum voltage among voltages of the regulated voltage nodes; a sample-and-hold circuit configured to sample, hold and output the minimum voltage in response to the control signal; and a comparator configured to compare an output voltage of the sample-and-hold circuit and a reference threshold voltage and generate the feedback signal.