Transistor circuit for reducing current after ignition in a meta

Details Transistor circuit for reducing current after ignition in a meta Transistor circuit for reducing current after ignition in a meta

1983-03-21

1986-03-11

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346154, 307131, 307154, 307268, 307270, G01D 1508

Patent

active

045757402

ABSTRACT:
To obtain a good print quality in metal paper printers, the print current, after ignition of the arc, must be rapidly reduced to a fraction of the value necessary for ignition. For this purpose, two transistor power stages (T3, T4) are connected to the print electrode (2). Their partial currents form the print current, whose rapid reduction after ignition of the arc is obtained by the two transistor power stages being operated at voltages (U2, U3) of different magnitude. The second transistor stage (T4) is operated at a voltage (U3), whose magnitude corresponds to the drop in potential occurring upon ignition between the grounded metal layer (3) of the record carrier (4) and the print electrode. As a result, the second transistor stage is switched off when a diode (D) connected to it becomes non-conductive.

REFERENCES:
patent: 3396314 (1968-08-01), Corson
patent: 3631509 (1971-12-01), Marshall
patent: 3633051 (1972-01-01), Press et al.
patent: 3678291 (1972-07-01), Coe
patent: 3751627 (1973-08-01), Prischi
patent: 3774007 (1973-11-01), Chiasson et al.
patent: 3787738 (1974-01-01), Horwath
patent: 3846801 (1974-11-01), DuMont
patent: 3946403 (1976-03-01), Ikeuchi et al.
patent: 3986131 (1976-10-01), Ross et al.
patent: 4013904 (1977-03-01), Chick
patent: 4035670 (1977-07-01), Roman
patent: 4395715 (1983-07-01), Bahr et al.
Electrotechnik, Band 63, Nr. 17, Sep. 1981, Seite 66, Wurzburg, DE. "Treiber fur Magnete und Schutze".
Electrotechnik, Band 61, Nr. 20, Oct. 1979, Seiten 24-26 und 28, Wurzburg, DE. "Einfach und betriebssicher".

Affiliated with

Also associated with

Rating

Transistor circuit for reducing current after ignition in a meta does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transistor circuit for reducing current after ignition in a meta, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transistor circuit for reducing current after ignition in a meta will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2193580