Circuit for generating triangular waveform having relatively...

Electricity: battery or capacitor charging or discharging – Battery or cell charging – Pulsed

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C320S139000, C320S145000, C327S131000, C327S134000, C327S135000, C327S137000, C327S140000, C363S020000, C363S021010, C363S021080, C363S021100

Reexamination Certificate

active

07834592

ABSTRACT:
A circuit includes a pulse transformer having primary and secondary windings. An oscillating waveform is applied to the primary winding to induce an oscillating waveform at the secondary winding. A transistor in series with a first resistor is coupled between the secondary winding and the ground. An R-C network formed by a second and a third resistor and a capacitor is coupled to a base junction of the transistor. The R-C network causes a slow, tapered linear pinch off of the transistor's conductance to enable the circuit to output a triangular waveform, which is characterized by a relatively short linear rise time followed by a substantially long linear fall time. The R-C network is coupled to the secondary winding via a first and a second diode, respectively.

REFERENCES:
patent: 3497791 (1970-02-01), Moore
patent: 3959707 (1976-05-01), Stephens
patent: 4871959 (1989-10-01), Gali
patent: 4878007 (1989-10-01), Gabor et al.
patent: 5063341 (1991-11-01), Gali
patent: 5084664 (1992-01-01), Gali
patent: 5276393 (1994-01-01), Gali
patent: 5367244 (1994-11-01), Rose et al.
patent: 5463304 (1995-10-01), Winters
patent: 5491399 (1996-02-01), Gregory et al.
patent: 5525892 (1996-06-01), Phommarath
patent: 5583416 (1996-12-01), Klang
patent: 5589757 (1996-12-01), Klang
patent: 5592068 (1997-01-01), Gregory et al.
patent: 5614805 (1997-03-01), Momotani et al.
patent: 5633575 (1997-05-01), Gali
patent: 5646505 (1997-07-01), Melnikov et al.
patent: 5648714 (1997-07-01), Eryou et al.
patent: RE35643 (1997-10-01), Gali
patent: 5747969 (1998-05-01), Tamai
patent: 5783929 (1998-07-01), Taricco
patent: 5891590 (1999-04-01), King
patent: 6184650 (2001-02-01), Gelbman
patent: 6242886 (2001-06-01), Palanisamy et al.
patent: 7541778 (2009-06-01), Maleus
patent: 7786702 (2010-08-01), Chait et al.
patent: 2009/0085524 (2009-04-01), Smith et al.
patent: 2009/0085525 (2009-04-01), Smith et al.

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

Circuit for generating triangular waveform having relatively... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for generating triangular waveform having relatively..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for generating triangular waveform having relatively... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4241334

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