Power source circuit for generating positive and negative voltag

Details Power source circuit for generating positive and negative voltag Power source circuit for generating positive and negative voltag

1999-02-03

2000-07-04

Riley, Shawn

Electricity: power supply or regulation systems

Output level responsive

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

323274, G05F 140

Patent

active

06084387&

ABSTRACT:
A power source circuit for a flash memory includes a positive circuit section for generating a positive voltage source, a source follower transistor for converting the impedance of the first voltage source, a negative circuit section for generating a negative voltage source while maintaining a voltage difference between the output of the source follower transistor and the negative voltage source at a first reference potential. The positive circuit section includes a voltage compensating transistor having a threshold voltage equal to the threshold of the source follower transistor.

REFERENCES:
patent: 5168174 (1992-12-01), Giovanni et al.
patent: 5768115 (1998-06-01), Pascucci et al.

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