Current bleeder amplifier with positive feedback

Details Current bleeder amplifier with positive feedback Current bleeder amplifier with positive feedback

1986-07-21

1988-04-19

Wan, Gene

Amplifiers

With semiconductor amplifying device

Including field effect transistor

330291, H03F 316, H03F 138

Patent

active

047392827

ABSTRACT:
An FET amplifier having a current bleeder includes a positive feedback path for increasing the overall gain of the device. The positive feedback path includes an additional FET having its drain source path connected to the current bleeder and its gate connected to the output of the amplifier. The positive feedback causes the current through the current bleeder to vary in direct response to the output of the amplifier, thereby significantly increasing its overall gain.

REFERENCES:
patent: 4525679 (1985-06-01), Wong et al.

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