Invention Grant
US08796946B2 Emergency lighting device for operating a light source, in particular an LED
有权
用于操作光源的应急照明装置，特别是LED
- Patent Title: Emergency lighting device for operating a light source, in particular an LED
- Patent Title (中): 用于操作光源的应急照明装置，特别是LED
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Application No.: US13307268Application Date: 2011-11-30
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Publication No.: US08796946B2Publication Date: 2014-08-05
- Inventor: Daniel Rohner , Alexander Mair
- Applicant: Daniel Rohner , Alexander Mair
- Applicant Address: AT
- Assignee: Tridonicatco GmbH & Go KG
- Current Assignee: Tridonicatco GmbH & Go KG
- Current Assignee Address: AT
- Agency: Cantor Colburn LLP
- Priority: DE102006018531 20060421; DE102006030655 20060703
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
An LED driver for operating a light source, in particular an LED, includes an energy storage unit, a driver circuit supplied by the energy storage unit during emergency lighting operation, for operating the light source, and a control unit that activates the driver circuit in such a way that the light source is operated with a constant power or constant current irrespective of the state of charge of the energy storage unit, where the control unit, for the purpose of regulating the power, determines indirectly the level of the current supplied to the light source.
Public/Granted literature
- US20120068601A1 EMERGENCY LIGHTING DEVICE FOR OPERATING A LIGHT SOURCE, IN PARTICULAR AN LED Public/Granted day:2012-03-22
Information query
IPC分类:
