Device for controlling the current through a PN junction

Details Device for controlling the current through a PN junction Device for controlling the current through a PN junction

2011-03-22

2011-03-22

Donovan, Lincoln (Department: 2816)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S224000, C315S302000, C315S307000, C323S265000, C323S280000, C323S311000, C323S312000, C327S538000, C372S038020

Reexamination Certificate

active

07911157

ABSTRACT:
Device for controlling the current through a PN junction includes a voltage source connected in series to, in order, firstly a controllable current generator having an input connected to the voltage source, an output and a control input, thereafter a measurement resistor connected to the output, and finally a controlled output to which the PN junction is connected. The device further includes a control signal input, a differential amplifier and an integrating device, which includes a balanced integrator. The current through the output of the controllable current generator is proportional to the voltage difference between its input and its control input, and the reference voltage of the integrating device is constituted of the voltage of the voltage source.

REFERENCES:
patent: 6580735 (2003-06-01), Theodoras, II
patent: 6621235 (2003-09-01), Chang
patent: 6734639 (2004-05-01), Chang et al.
patent: 6954039 (2005-10-01), Lin et al.
patent: 7342440 (2008-03-01), Bodano et al.
patent: 2004/0183478 (2004-09-01), Lin et al.
patent: 10 2004 033 980 (2006-02-01), None
patent: 10 2005 010 013 (2006-09-01), None
patent: 63229791 (1988-09-01), None
International Search Report dated Jul. 8, 2008, from corresponding PCT application.

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