Analogue multiplier using MOSFETs in nonsaturation region and cu

Details Analogue multiplier using MOSFETs in nonsaturation region and cu Analogue multiplier using MOSFETs in nonsaturation region and cu

1997-09-29

1999-03-30

Wong, Peter S.

Electric power conversion systems

Current conversion

With voltage multiplication means

323313, 323314, 323315, 327296, H02M 318, G05F 316, G06F 104

Patent

active

058896651

ABSTRACT:
A multiplier capable of removing nonlinear current using current mirror circuits. The multiplier uses MOSFET and BJT devices by the BiCOMS processes. The multiplier includes three current mirror circuits. A first current mirror includes a BJT Q.sub.3 and a BJT Q.sub.5 and also the BJT Q.sub.3 is coupled in series to the n-channel MOSFET M1 between the voltage V.sub.1 and a ground voltage level. A second current mirror includes a BJT Q.sub.7 and a BJT Q.sub.8. A third current mirror includes a BJT Q.sub.4 and a BJT Q.sub.6. Consequently, input voltage signals V.sub.1 and V.sub.dc applied to the n-channel MOSFETs M1 determine the current I.sub.1 and input voltage signals V.sub.1 and V.sub.2 applied to the n-channel MOSFET M2 determine the current I.sub.2.

REFERENCES:
patent: 5034626 (1991-07-01), Pirez et al.
patent: 5521544 (1996-05-01), Hatanaka

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