Adjustable DC pulse circuit for variation over a predetermined r

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

307265, 307269, 315307, H04B 3902

Patent

active

042041414

ABSTRACT:
A circuit for providing a dc pulse, such as to a gated semiconductor for at least partial bypass of a ballast element connected to an HID lamp, the pulse being developed within a time range of an associated ac voltage. A first timer operably connected to the ac voltage produces a first dc output pulse and a second timer connected to the output of the first timer produces the circuit dc pulse output. Reduction of a threshold control voltage of the first timer permits a time constant network connected thereto to advance the conclusion of the output of the first timer forward within its operational range. A time constant network connected to the second timer has charge current added to it from the first timer control voltage, the amount of such current decreasing with an advance positioning of the output of the first timer, thereby increasing the slope of the charge-up voltage of the second time constant network and shortening of the related square wave or dc pulse output from the second timer.

REFERENCES:
patent: 3467838 (1969-09-01), Glazebrook et al.
patent: 3602743 (1971-08-01), Shazo Jr.
patent: 3816794 (1974-06-01), Snyder
patent: 3894265 (1975-07-01), Holmes et al.
patent: 3991343 (1976-11-01), Delpy

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Adjustable DC pulse circuit for variation over a predetermined r does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable DC pulse circuit for variation over a predetermined r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable DC pulse circuit for variation over a predetermined r will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-451480

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.