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HIGH-END MULTI MODE VOLTAGE CONVERTER

IP.com Disclosure Number: IPCOM000010669D
Publication Date: 2003-Jan-08

Publishing Venue

The IP.com Prior Art Database

Abstract

Keywords POWER MANAGEMENT, ANALOG, DIGITAL, CURRENT CONTROL, VOLTAGE CONTROL, CLOCK, OPERATIONAL AMPLIFIER Background Precise, low cost control of the operating voltage and/or current of voltage regulators embedded in cellular phone power supply units using either a digital or an analog drive is a highly desirable feature and commercially lucrative. Today’s DC/DC converters typically operate using either voltage or current control mode, or by adding additional components; a selectable mode of operation whereby depending upon load conditions either voltage or current control is affected. One problem of these selectable mode types of converters is that separate digital and analog components are required to provide the selectable mode operation, which increases cost and complexity. Thus, a significant commercial advantage would be gained by producing a precise, low cost, low component count voltage converter.