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. 31, 1976
Filed:
Dec. 02, 1974
Shunji Iwabuchi, Yokohama, JA;
Hitachi, Ltd., , JA;
Abstract
In a vertical deflection output circuit comprising two transistors connected in push-pull configuration, the junction point of the two transistors is connected through a series circuit of a capacitor and a vertical deflection coil, with a first power source and also connected through a switch, which is turned on during the vertical retrace period, with a second power source whose voltage is higher than that of the first power source, and one end of a bootstrap capacitor is connected with the junction point while the other end of the bootstrap capacitor is connected with the base of one of the two transistors and also connected through a resistor with the second power source, whereby the bootstrap capacitor is prevented from being exposed to a voltage whose polarity is opposite to that of the voltage developed across the bootstrap capacitor due to the charging thereof.