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:
Mar. 21, 2006
Filed:
May. 04, 2004
Chen-ku Wei, Nantou, TW;
Chen-Ku Wei, Nantou, TW;
Abstract
A ballast includes a power unit for supplying DC, a converting unit having four switches connected to the power unit for converting DC into AC, a voltage-resistant electrocontrol switch connected to the converting unit and having at least one high-voltage diode and an electrocontrol switch, all of which are arranged in parallel, a high-voltage ignition unit connected to the voltage-resistant electrocontrol switch, a current sensor connected to the converting unit, and a control circuit connected to the converting unit, the power unit, the high-voltage ignition unit, and the voltage-resistant electrocontrol switch for manipulating the actions of the aforesaid elements, such that the ballast is in high-voltage and parallel structure. In addition, the electrocontrol switch of the voltage-resistant electrocontrol switch contains inside high-voltage-resistant insulated oil for enabling the voltage-resistant electrocontrol switch to be resistant to high voltage for AC running through.