Electricity: electrical systems and devices – Electric charging of objects or materials
Patent
1990-04-20
1992-04-14
Scott, J. R.
Electricity: electrical systems and devices
Electric charging of objects or materials
361235, G03G 1502, G05F 1656
Patent
active
051053306
ABSTRACT:
A grid electrode voltage control aparatus is for a scorotron charging device having a corona discharge electrode operatively connected to a corona producing power source and disposed opposite a counter electrode, and a grid electrode disposed between the corona discharge electrode and the counter electrode. A shunt-regulated stabilized power supply is operatively connected to the grid electrode and has an output variably responsive to the intensity of current flowing through the grid electrode. A series-regulated stabilized power supply (preferably comprising a dc-dc converter and a current limiter) is operatively connected to the shunt-regulated stabilized power supply. A controller is operatively connected to the shunt-regulated stabilized power supply and the series-regulated stabilized power supply for controlling the output of the shunt-regulated stabilized power supply by controlling the series-regulated stabilized power supply in one of first and second modes wherein said series-regulated stabilized power supply supplies current to the shunt-regulated stabilized power supply in the first mode of the control and interrupts the supply of current to the shunt-regulated stabilized power supply in the second mode of the control.
REFERENCES:
patent: 3909614 (1975-09-01), Marshall
patent: 3980929 (1976-09-01), Bresnick
patent: 4868907 (1989-09-01), Folkins
Brother Kogyo Kabushiki Kaisha
Jackson S.
Scott J. R.
LandOfFree
Scorotron type charging apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scorotron type charging apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scorotron type charging apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2354234