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:
May. 08, 2001
Filed:
Jul. 29, 1999
Applicant:
Inventor:
Foo Onn Fah, Kowloon, HK;
Assignee:
Mass Technology (H.K.) Ltd., Kowloon, HK;
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/700 ;
U.S. Cl.
CPC ...
H05B 3/700 ;
Abstract
An alternating current—pulsating direct current converter (,) is adopted for eliminating unfavourable effects of feeder line, used in the electronic transformer of bromine tungsten filament lamp (,), such as half-wave, full-wave and bridge-type converters. Input signal is an alternating current one. After output signal is transformed, the effect of impedance change of feeder line (,) is eliminated, thus making output match and stabilisation.