Stabilized current generator with single power supply, particularly for MOS integrated circuits

作者: Alejandro de la Plaza , Guido Torelli

DOI:

关键词: Operational transconductance amplifierCurrent mirrorOperational amplifierElectronic engineeringOp amp integratorDirect-coupled amplifierCharge amplifierElectronic switchCurrent-feedback operational amplifierEngineering

摘要: A stabilized generator includes an operational amplifier with capacitive negative feedback whose output signal controls a current regulator which drives the input of mirror circuit, mirrored from circuit controlling adapted to drive in order maintain constant. The includes: first capacitor and electronic switch, parallel, one end at fixed voltage opposite fed by current; second connected switch connect inverting first, inactive, position, free second, active being controlled synchronously square-wave clock signal, such way that is alternately open while its position closed inactive position; furthermore, non-inverting reference source.

参考文章(5)
Hideo Sato, Kazuo Kato, Voltage-to-current converter circuit ,(1984)
Kyuichi Hareyama, Current source circuit ,(1978)
Roubik Gregorian, Glenn Wegner, Offset compensation for switched capacitor integrators ,(1982)
William L. Geller, Reference voltage source ,(1982)