Sameer Te Vuyyuru

US Patent:

20060049707, Mar 9, 2006

Filed:

Aug 15, 2005

Appl. No.:

11/204227

Inventors:

Sameer Vuyyuru - San Jose CA, US

Assignee:

Intersil Americas Inc. - Milpitas CA

International Classification:

H02K 7/10

US Classification:

310100000

Abstract:

Video line drivers that operate using a single external supply voltage, without the need for large external capacitors (e.g., 470 uF) on the output, are provided. In accordance with an embodiment, a video line driver includes a charge pump and a plurality of amplifiers. The charge pump uses the single external supply voltage to produce a further voltage having an opposite polarity than the external supply voltage. The plurality of amplifiers are each powered by the external supply voltage and the further voltage produced by the charge pump. Each amplifier receives a portion of a video signal and outputs an amplified version of the received portion of the video signal. The video signal can include, e.g., an R portion, a G portion and a B portion, or a Y portion, a Pb portion and a Pr portion. This abstract is not intended to be a complete description of the invention.