The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2002
Filed:
Jan. 24, 2000
Philippe Maige, Seyssinet-Pariset, FR;
Yannick Guedon, Sassenage, FR;
STMicroelectronics S.A., Gentilly, FR;
Abstract
The control device includes an output amplifier stage ETS supplied by a main supply for controlling the vertical scan of the spot, and an auxiliary supply capable of delivering an overvoltage and a first two-way switch connected to the output stage and controllable to allow the overvoltage to be delivered to the vertical deflection circuit for flyback of the spot. The output stage is a stage having at least two transistors which are capable of operating in alternating switching mode, at least for control of the vertical scan of the spot, this stage being associated with a smoothing filter connected to the common terminal of the two transistors. The device includes a second two-way switch connected between a first transistor of the output stage and a first terminal of the main supply and controllable to prevent delivery of the overvoltage during control of the vertical scan of the spot.