发明名称 |
LED BYPASS AND CONTROL CIRCUIT FOR FAULT TOLERANT LED SYSTEMS |
摘要 |
A light system (FIG. 2) is disclosed. The light system includes a plurality of series connected light emitting diodes (240-246). Each of a plurality of switching devices (230-236) has a control terminal and each has a current path coupled in parallel with a respective LED. A plurality of fault detector circuits (220-226) are each coupled in parallel with a respective light emitting diode. Each fault detector circuit has a first comparator (FIG. 7, 704) arranged to compare a voltage across the respective light emitting diode to a respective first reference voltage (708). When a fault is detected, a control signal is applied to the control terminal to turn on a respective switching device of the plurality of switching devices. |
申请公布号 |
US2016088699(A1) |
申请公布日期 |
2016.03.24 |
申请号 |
US201514957052 |
申请日期 |
2015.12.02 |
申请人 |
Texas Instruments Deutschland GmbH ;Texas Instruments Incorporated |
发明人 |
DeNicholas Joseph V.;Tsao Perry;Goeltner Christoph;Herrington Daniel Ross;Masson James;Patterson James;Berns Werner |
分类号 |
H05B33/08 |
主分类号 |
H05B33/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Freising DE |