Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-07-03
2007-07-03
Laxton, Gary L (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S284000, C323S299000, C363S089000
Reexamination Certificate
active
11255074
ABSTRACT:
A device for power factor correction in a forced switching power supply unit is provided. The device includes a converter and a control device coupled to the converter so as to obtain from an input alternating mains voltage a direct regulated voltage on the output terminal. The converter includes a power transistor, and the control device includes an error amplifier having its inverting terminal coupled to a first signal that is proportional to the regulated voltage and its non-inverting terminal coupled to a reference voltage. A drive circuit of the power transistor is coupled to the output terminal of the error amplifier. The control device also includes a circuit for generating a current signal that is representative of the effective input voltage. The current signal is coupled to the inverting terminal of the error amplifier to vary the regulated voltage in reply to variations in the effective input voltage.
REFERENCES:
patent: 5489837 (1996-02-01), Arakawa
patent: 5828206 (1998-10-01), Hosono et al.
patent: 6031364 (2000-02-01), Hosono et al.
patent: 6744243 (2004-06-01), Daniels et al.
patent: 2366395 (2002-03-01), None
Comandatore, et al., “Designing A High Power Factor Switching Converter Preregulator With The L4981 Continuous Mode,”SGS-Thomson Microelectronics Application Note, 1997, pp. 1-23, XP002183394.
Various Authors, “L6563 - Advanced Transition-Mode PFC Contoller,” ST Datasheet, Nov. 13, 2004, pp. 1-37, XP002425751, http://pdf1.alldatasheet.com/datasheet-pdf/view/158050/STMICROELECTRONICS/L6563.
European Search Report for Application No. EP 05109431.
Adragna Claudio
Fagnani Mauro
Gattavari Giuseppe
Bongini Stephen
Fleit Kain Gibbons Gutman Bongini & Bianco P.L.
Jorgenson Lisa K.
Laxton Gary L
STMicroelectronics S.r.l.
LandOfFree
Device for power factor correction in forced switching power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for power factor correction in forced switching power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for power factor correction in forced switching power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3729846