Patent · US Active

LED actuating device and method

US9572209B2 · kind B2 · utility

1Cited by

2References

10Claims

0Family size

Assignee

Jun Hu · CN

Inventors

Jun Hu · San Diego, US
Yongming Deng · Tangxia, CN
Ping-Lin Liu · Shanghai, CN

Key dates

Filing date	Oct 31, 2014
Grant date	Feb 14, 2017
Priority date	—
Expiry date	Oct 31, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/38
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An actuating device comprises an LED actuating module. Said LED actuating module comprises a micro-programmed control unit (MCU), an actuator, a VF-value detection module, a PN-junction temperature acquisition module and an LED lamp unit. The MCU determines the current value matched with the LED lamp unit based on the VF value detected by the VF-value detection module and the temperature value detected by the PN-junction temperature acquisition module, and then determines the width of the PWM pulse output to the actuator according to the current value, and the actuator actuates an LED to operate at the matched current value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.