A solid state current sense for high current epi base power transistors

A solid state current sense for high current epi base power transistors

This paper concerns the development of a current sense device used in high current epi base power transistors. The device exhibits an output current proportional to the square root of input current. A theoretical derivation agrees very well with experimental results. A circuit is described which imp...

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Bibliographic Details
Published in:1982 International Electron Devices Meeting pp. 92 - 95
Main Authors: Wrathall, R.S., Robb, S.P.
Format: Conference Proceeding
Language:English
Published: IRE 1982
Subjects:
Bipolar transistors
Current density
Fingers
Laboratories
Power transistors
Research and development
Resistors
Solid state circuits
Surface resistance
Voltage
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Summary:This paper concerns the development of a current sense device used in high current epi base power transistors. The device exhibits an output current proportional to the square root of input current. A theoretical derivation agrees very well with experimental results. A circuit is described which implements this device. The current sense device was used to investigate high current effects in the bipolar transistor.
DOI:10.1109/IEDM.1982.190221