Radiation hardened bandgap reference voltage generator and metho

Details Radiation hardened bandgap reference voltage generator and metho Radiation hardened bandgap reference voltage generator and metho

1991-04-01

1992-09-15

Stephan, Steven L.

Electricity: power supply or regulation systems

Self-regulating

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

323316, 323907, G05F 320

Patent

active

051480999

ABSTRACT:
A method and device for the generation of a bandgap reference voltage, compensating for temperature and input voltage fluctuations, in a device hardened against radiation. To generate a stable reference voltage output, the device provides a positive temperature coefficient voltage and a negative temperature coefficient voltage, compensating the positive temperature coefficient voltage with the negative temperature coefficient voltage to maintain the stable bandgap reference voltage output under temperature changes. In addition, input voltage fluctuations are tracked, and excess current is shunted to maintain the stable bandgap reference voltage output under voltage changes. An epi ring insulates the bandgap reference voltage generator sensitive nodes from excess leakage currents caused by radiation.

REFERENCES:
patent: 4466011 (1984-08-01), Van Zanten
patent: 4626770 (1986-12-01), Price
patent: 4628248 (1986-12-01), Birrittella
patent: 4670669 (1987-06-01), Cottrella
patent: 4849684 (1986-07-01), Sonntag
Design Techniques for IC Voltage Regulators Without p-n-p Transistors-Marks. Birrittell, Robert R. Marley and Keith D. Nootbaar, IEEE Journal of Solid State Circuits, vol. SC-22, No. 1, Feb. 1987, pp. 71-76.

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