On chip multiple voltage generation using a charge

专利名称：On chip multiple voltage generation using a

charge pump and plural feedback sensecircuits

发明人：Hayden C. Cranford, Jr.,Stacy J. Garvin,Wendy

K. Hodgin,John M. Mullen

申请号：US06/943466申请日：19861219公开号：US04752699A公开日：19880621

摘要：A level selectable FET voltage generation system is described. The systemincludes a single charge pump controlled by multiple feedback paths and a powerdowncircuit. Each feedback path contains a capacitor divider network, a sense amplifier with acompensating voltage reference and a timer which periodically resets the capacitordivider network to insure sensing accuracy. The powerdown circuit and a selectedfeedback path provides a desired voltage level at the output of the charge pump.

申请人：INTERNATIONAL BUSINESS MACHINES CORP.

代理人：Joscelyn G. Cockburn

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