Capacitor and resistor connection in low voltage current source

Details Capacitor and resistor connection in low voltage current source Capacitor and resistor connection in low voltage current source

1994-01-26

1995-04-25

Stephan, Steven L.

Electricity: power supply or regulation systems

Self-regulating

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

G05F 316, G05F 320

Patent

active

054102421

ABSTRACT:
One embodiment of this invention provides an improved version of an existing current source circuit. A reduction in die size of the current source is achieved by modifying the circuit to enable a reduction in the capacitance of its feedback capacitor while improving the frequency compensation of its feedback loop. The modification changes the location of the dominant pole in the circuit and utilizes Miller multiplication to increase the effect of the feedback capacitor. The modification also uses pole splitting to further ensure that the feedback loop will not oscillate.

REFERENCES:
patent: 4645999 (1987-02-01), Szepesi

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