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:
Aug. 05, 1980
Filed:
Dec. 22, 1978
Glenn C Waehner, Riverside, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
Each orthogonal driver channel for the magnet deflection yoke of a conventional CRT includes a simple bifilar wound transformer which is connected so that the deflection current waveform passes therethrough. The transformer effectively minimizes the inherent parasitic capacitance between the two windings of the magnetic deflection yoke as it affects a high frequency input signal presented to the input terminal of the high gain operational amplifier. However, the impedance introduced within the feedback loop of the operational amplifier is minimal with respect to an input signal to either driver channel, and thus no significant distortion is presented to the current waveform driving each winding.