Low-power bandgap reference circuits having relatively less...

Details Low-power bandgap reference circuits having relatively less... Low-power bandgap reference circuits having relatively less...

2006-07-11

2006-07-11

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

Reexamination Certificate

active

07075282

ABSTRACT:
The first proposed circuit includes: a voltage supply; a first current source, including: a first transistor having a first terminal coupled to the voltage supply, a second terminal providing the PTAT current and coupled to an output terminal of the circuit for providing a bandgap reference voltage, and a control terminal; a second current source, including: a first resistor having a first terminal coupled to the voltage supply; and a second transistor having a first terminal coupled to a second terminal of the first resistor, a second terminal providing the PTVBE current and coupled to the output terminal, and a control terminal; and a second resistor having a first terminal coupled to the output terminal, and a second terminal coupled to a common ground. Two current mirror circuits are employed in this circuit.

REFERENCES:
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Made Gunawan; Gerard C. M. Meijer; Jeroen Fonderie and Johan H. Huijsing; “A Curvature-Corrected Low-Voltage Bandgap Reference”; IEEE Journal Of Solid-State Circuits, vol. 28, No. 6, Jun. 1993 (pp. 667-670).

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