Lamp-voltage threshold detector

申请公布号：US6559608(B2)

申请号：US20010022397

申请日期：2001.11.30

申请公布日期：2003.05.06

申请人：

KONINKLIJKE PHILIPS ELECTRONICS N.V.

发明人：WICKLUND KURT W.;TROY PATRICK E.

分类号：H05B41/18;H05B41/04;H05B41/292;(IPC1-7):H05B37/02

主分类号：H05B41/18

摘要：A threshold detector for detecting lamp voltage includes an opto-coupler. The opto-coupler includes a radiation-emitting semiconductor element coupled to a source of a sensed voltage and an optically-coupled radiation-receiving semiconductor element with an impedance which varies with received radiation. A switching element coupled to the radiation-receiving semiconductor element produces a first or second signal, depending on the sensed voltage.

Lärmschutzwand neben Fahrwegen

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