Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Transformer in the supply circuit
Reexamination Certificate
2006-08-15
2006-08-15
Vo, Tuyet (Department: 2821)
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Transformer in the supply circuit
C315S291000
Reexamination Certificate
active
07091672
ABSTRACT:
A power supply circuit comprising a first switching transistor having a control terminal and a control terminal switching threshold and that charges current from a voltage source into a charge storage capacitor, a control circuit controlling the on/off operation of the switching transistor whereby the switching transistor is turned on when the voltage of the voltage source is below a predetermined level and turned off when the voltage of the voltage source is above the predetermined level, a control voltage supply circuit providing a control voltage to the control terminal of the switching transistor substantially in excess of the switching threshold when the voltage of the voltage source is below the predetermined voltage thereby to drive the switching transistor on in a saturated region of operation; and a charge storage capacitor for providing an output voltage of the power supply.
REFERENCES:
patent: 2810105 (1957-10-01), Henrich
patent: 3068392 (1962-12-01), Santelmann, Jr.
patent: 3373344 (1968-03-01), Seer, Jr.
patent: 3460023 (1969-08-01), Becker
patent: 3581187 (1971-05-01), Grady, Jr.
patent: 4001668 (1977-01-01), Lewis
patent: 4430608 (1984-02-01), Nesler
patent: 4521725 (1985-06-01), Phaneuf
patent: 4553082 (1985-11-01), Nesler
patent: 4580090 (1986-04-01), Bailey et al.
patent: 4685046 (1987-08-01), Sanders
patent: 4733159 (1988-03-01), Edwards et al.
patent: 4864482 (1989-09-01), Quazi et al.
patent: 5105144 (1992-04-01), Trump
patent: 5307257 (1994-04-01), Fukushima
patent: 5469046 (1995-11-01), Wong et al.
patent: 5500575 (1996-03-01), Ionescu
patent: 5646514 (1997-07-01), Tsunetsugu
patent: 5652825 (1997-07-01), Schmider et al.
patent: 5773965 (1998-06-01), Hayashi
patent: 5801933 (1998-09-01), Ravid
patent: 5818708 (1998-10-01), Wong
patent: 5920183 (1999-07-01), Null
patent: 6061259 (2000-05-01), DeMichele
patent: 6275395 (2001-08-01), Inn et al.
patent: 6320363 (2001-11-01), Oglesbee et al.
patent: 6346778 (2002-02-01), Mason et al.
patent: 6452766 (2002-09-01), Carper
patent: 6573693 (2003-06-01), Okamoto
patent: 6667604 (2003-12-01), Yanagisawa
patent: 6724157 (2004-04-01), Kazanov et al.
patent: 6828733 (2004-12-01), Crenshaw
patent: 6906477 (2005-06-01), Kazanov et al.
Black Richard L.
Steffie Jamie J.
Lutron Electronics Co. Inc.
Ostrolenk Faber Gerb & Soffen, LLP
Vo Tuyet
Vy Hung Tran
LandOfFree
High efficiency off-line linear power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High efficiency off-line linear power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High efficiency off-line linear power supply will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3632189