Voltage supply including bilateral attenuator

Details Voltage supply including bilateral attenuator Voltage supply including bilateral attenuator

1975-12-15

1977-08-23

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250207, 315 12R, 315171, 323 75F, H01J 3912

Patent

active

040442497

ABSTRACT:
The specification discloses a voltage supply system particularly adapted for use as an automatic brightness control for an image intensifier tube. The system includes a power oscillator for applying a constant A.C. voltage to a first multiplier which generates at least one constant D.C. voltage for application to the screen of the image intensifier tube. A regulator circuit includes a low power oscillator which generates a control A.C. signal and which further includes circuitry responsive to the screen current of the image intensifier tube for varying the amplitude of the control A.C. signal. The frequency of the control A.C. signal is substantially greater than the frequency of the constant A.C. voltage. A bilateral attenuator receives the constant A.C. voltage and is operable in response to the control A.C. signal for varying the amplitude of the constant A.C. voltage. A second multiplier is connected to the output of the attenuator for generating a variable D.C. voltage for application to the microchannel plate of the image intensifier tube.

REFERENCES:
patent: 3222572 (1965-12-01), Powell, Jr.
patent: 3316427 (1967-04-01), Muskovac
patent: 3361931 (1968-01-01), Vollrath
patent: 3581098 (1971-05-01), Hoover
patent: 3694659 (1972-09-01), Ramsay et al.
patent: 3711720 (1973-01-01), Kryder
patent: 3848123 (1974-11-01), Parker et al.

Affiliated with

Also associated with

Rating

Voltage supply including bilateral attenuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage supply including bilateral attenuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage supply including bilateral attenuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2317209