Current difference current source
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 23, 1988
Grant Date -
N/A
app pub date -
Jan 22, 1987
filing date -
Jan 22, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A current difference current source which provides a stable current as operating conditions change. Two MOS transistors operate as two current sources. A difference current is obtained by subtracting the two transistor currents. The two current sources are configured to vary similarly as conditions change, such that their difference remains constant. In the alternative the difference current is forced to decrease as current increases in the transistors, wherein a reverse compensated current is provided. The difference current is used to drive a current mirror which functions as a compensated current source.
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