公开(公告)号：US5962932A

公开(公告)日：1999-10-05

申请号：US935291

申请日：1997-09-22

申请人： Darryl Matlo

发明人： Darryl Matlo

IPC分类号： G01R19/15 ,  H02H3/04 ,  H02H3/12 ,  H02H11/00 ,  H01H35/00

CPC分类号： H02H3/04 ,  G01R19/15 ,  H02H11/002 ,  H02H3/12 ,  Y10T307/826 ,  Y10T307/832

摘要： A power supply apparatus 10 with circuit load sensor provides an extension cord 20 having first and second ends extending from an enclosure 30. Within the enclosure, a power supply indicator circuit 40 lights an LED in response to the plug of the extension cord being inserted into a live outlet. Also within the enclosure, a power consumption indicator circuit 60 lights an LED in response to consumption of power by a load plugged into the socket of the extension cord. A nominal voltage drop across a TRIAC 70, carried in-line with the neutral conductor within the enclosure, triggers the power consumption indicator circuit when the load draws current.

摘要翻译： 具有电路负载传感器的电源装置10提供具有从外壳30延伸的第一和第二端的延伸线20.在外壳内，电源指示器电路40响应于延伸线的插头被插入 一个活的插座。 另外在机壳内，功耗指示电路60响应于插入到延长线的插座中的负载的功率消耗而点亮LED。 在负载牵引电流时，与内部中性导体串联的TRIAC 70上的额定电压降触发了功耗指示器电路。