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. 15, 2022
Filed:
Mar. 17, 2021
Shenzhen Number Energy Saving Corporation, Guangdong, CN;
Hongchuan Chen, Guangdong, CN;
Shengqiu Zhao, Guangdong, CN;
Rizhan He, Guangdong, CN;
Jiaqin Li, Guangdong, CN;
SHENZHEN NUMBER ENERGY SAVING CORPORATION, Guangdong, CN;
Abstract
A control method of an electronic ballast of a gas discharge lamp (HID), to generate a PWMsignal for controlling on/off of a left upper arm switch, a PWMsignal for controlling on/off of a right upper arm switch, a PWMsignal for controlling on/off of a left lower arm switch, and a PWMsignal for controlling on/off of a right lower arm switch, the PWMsignal and the PWMsignal are low frequency signals and have an identical frequency and an opposite phase, the PWMsignal and the PWMsignal are high frequency signals. Duty ratios of PWM signals for controlling arms of a semiconductor full bridge circuit are changed according to a power consumption of the gas discharge lamp (HID) to control the power consumption of the gas discharge lamp (HID).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile