Device for generating a DC reference voltage

Details Device for generating a DC reference voltage Device for generating a DC reference voltage

1998-12-09

1999-12-07

Berhane, Adolf Denske

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

327538, G05F 320

Patent

active

059989831

ABSTRACT:
A device that generates a DC reference voltage approximately equal to half a DC supply voltage. It includes an input stage forming a first potentiometric divider comprising two branches having an asymmetric behavior in response to variations in the room and/or operating temperature, and supplying a first DC voltage (NBGP), an intermediate stage forming a resistive and capacitive filter, which eliminates the dynamic component of the first DC voltage (NGBP) and supplies a second DC voltage (NARF), and an output stage forming a second potentiometric divider comprising two branches also having an asymmetric behavior of which the voltage variations are smaller than those of the first divider comprising in addition a logic inverter function, and supplying a third DC voltage (NREF), the variations of which are the inverse of those in the second DC voltage (NARF), the variations in the latter being thus compensated.

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"Low-Power On-Chip Supply Voltage Conversion Scheme For Ultrahigh-Density DRAM'S", Daisaburo Takashima Et Al., IEICE Transactions On Electronics, vol. E76-C, No. 5, May 1, 1993, pp. 844-849.

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