Compensated bias generator voltage source for ECL circuits

Details Compensated bias generator voltage source for ECL circuits Compensated bias generator voltage source for ECL circuits

1985-07-25

1987-02-17

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

323299, 323313, 323907, G05F 1652

Patent

active

046442499

ABSTRACT:
A voltage compensated bias generator voltage source includes an all NPN active collector load circuit operatively coupled between the line voltage V.sub.cc and the collector of the shunt regulator transistor of the bias generator. The all NPN active collector load circuit logarithmically reduces variation in shunt regulator transistor collector current with variations in the line voltage V.sub.cc. A transistor of the active collector load circuit also provides in combination with an output transistor of the bias generator a Darlington transistor pair of ECL current source voltage V.sub.cs. A temperature variation countervailing third transistor is also operatively coupled in the active collector load circuit to compensate for temperature variation problems introduced by the active collector load circuit itself. The temperature variation countervailing active collector load circuit actually reverses the effect of temperature on the shunt regulator transistor collector current for substantial linearizing of the dependence of bias generator outputs on temperature variation.

REFERENCES:
patent: 4061959 (1977-12-01), Ahmed
patent: 4490670 (1985-12-01), Wong
patent: 4533842 (1985-08-01), Yang et al.

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