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Automatically Controlled Voltage Regulator

IP.com Disclosure Number: IPCOM000020534D
Original Publication Date: 2003-Dec-25
Included in the Prior Art Database: 2003-Dec-25

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Shrinking technologies imply the lowering of internal logic voltages. As a lot of application systems remain designed for higher voltage levels, most devices accordingly require multiple supplies. Therefore applications become more complex and expensive, and less reliable. Up to now most integrated circuits provide their own internal digital voltage generation using embedded voltage regulators (EVR), which add complexity and bring in more issues for chip designers. Hence a scheme enabling the EVR to be turned on and off automatically is desirable. The idea described herewith provides such a scheme without requiring any additional control or pins on the integrated circuit and thus keeping the complexity low. In the following a few assumptions are made: