Internal power source voltage trimming circuit

Details Internal power source voltage trimming circuit Internal power source voltage trimming circuit

1997-11-10

1999-11-09

Sterrett, Jeffrey

Electricity: power supply or regulation systems

External or operator controlled

Using an impedance as the final control device

323350, G05F 308

Patent

active

059821639

ABSTRACT:
A semiconductor device, equipped with a circuit for regulating an internal power source by using a plurality of fuses, includes a fuse group for trimming a power source, having a plurality of fuses capable of being cut off so as to regulate a voltage level of an internal power source; a decoding unit for fuse information of the internal power source, for decoding fuse information in response to a cut-off state of each of these fuses and outputting bit information corresponding to the thus regulated voltage level of the internal power source; and a voltage level regulating unit for a spare fuse pattern, for generating at least one spare pattern other than patters of the bit information used at present and for regulating the voltage level of the internal power source. The voltage level of the internal power source is regulated so that the spare pattern corresponds to any one of the patterns of the bit information used at present.

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