Invention Grant
- Patent Title: Shunt regulator for spectral shift controlled light source
- Patent Title (中): 用于光谱变换控制光源的并联稳压器
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Application No.: US14619163Application Date: 2015-02-11
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Publication No.: US09247603B2Publication Date: 2016-01-26
- Inventor: Zdenko Grajcar , Leif Erickson
- Applicant: Once Innovations, Inc.
- Applicant Address: US MN Plymouth
- Assignee: Once Innovations, Inc.
- Current Assignee: Once Innovations, Inc.
- Current Assignee Address: US MN Plymouth
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H05B37/00
- IPC: H05B37/00 ; H05B39/00 ; H05B41/00 ; H05B33/08

Abstract:
A light emitting diode lighting assembly that receives an electrical excitation signal that is varied from a dimming device. Driving circuitry receives the varying input and has first and second paths that each have a plurality of light emitting diodes. Each plurality of light emitting diodes has a threshold voltage with the threshold voltage of the first plurality of diodes being less than the threshold voltage of the second plurality of lighting emitting diodes. The current within the first path is controlled by a current limiting device that is controlled by a resistor that receives input from the second path to gradually turn off the first plurality of light emitting diodes as the second plurality of lighting emitting diodes increase in intensity. A shunt voltage regulator within the circuit having a threshold voltage that is above threshold voltages of components in the assembly to minimize voltage increases in the assembly.
Public/Granted literature
- US20150230309A1 SHUNT REGULATOR FOR SPECTRAL SHIFT CONTROLLED LIGHT SOURCE Public/Granted day:2015-08-13
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