Reference voltage circuit driven by non-linear current...

Details Reference voltage circuit driven by non-linear current... Reference voltage circuit driven by non-linear current...

2007-01-24

2008-05-13

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

C323S315000

Reexamination Certificate

active

07372243

ABSTRACT:
Disclosed is a reference voltage circuit which includes control means for exercising control so as to equalize a divided voltage that is output from a first current-to-voltage converting circuit having a diode-connected MOS transistor and voltage-dividing resistors and a divided voltage that is output from a second current-to-voltage converting circuit having a diode-connected MOS transistor and voltage-dividing resistors; a first current mirror circuit having a non-linear input/output characteristic for supplying currents to the first and second current-to-voltage converting circuits, respectively; a second current mirror circuit having a linear input/output characteristic for outputting a current proportional to the value of the current supplied to the first current-to-voltage converting circuit; and a third current mirror circuit having a linear input/output characteristic for outputting a current proportional to the value of the current supplied to the second current-to-voltage converting circuit. A third current-to-voltage converting circuit converts a current, which is the result of adding the output currents of the second and third current mirror circuits, to a voltage to supply the so converted voltage as a reference voltage.

REFERENCES:
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“Analog Circuit Design Techniques for Applying CMOS to Mobile Wireless Terminals” (1999, published by Torrikeppsu K.K.), pp. 139-149.

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