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:
Dec. 05, 1989
Filed:
Apr. 29, 1988
Applicant:
Inventor:
Hiroshi Ikeuchi, Yokosuka, JP;
Assignee:
Murata Manufacturing Company, Nagaokakyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
315411 ; 358190 ; 358243 ;
Abstract
A high voltage generating apparatus for supplying a high voltage to a cathode-ray tube is provided with a flyback transformer which has a low voltage coil and a high voltage coil. A first circuit detects a quantity of current which flows in the low voltage coil, and a second circuit detects a quantity of current which flows in the high voltage coil. A thyristor turns on when the quantity of current of the first circuit becomes larger than that of the second circuit to fusing-disconnect a fuse connected to a power supplying circuit, thus stopping the operation of the flyback transformer.