发明名称 Apparatuses and methods for driving a doorbell system peripheral load at a higher current
摘要 A peripheral load driver that utilizes the power, wiring, and primary load of a conventional doorbell system to drive a doorbell system peripheral load at a higher current without risk of inadvertently energizing the primary load of the conventional doorbell system. The peripheral load driver comprising a power converting means for converting power extracted from the conventional doorbell system from a higher-voltage-at-a-lower-current to a lower-voltage-at-a-higher current wherein the higher-voltage-at-a-lower-current is insufficient to energize the primary load of the conventional doorbell system and the lower-voltage-at-a-higher-current is compatible with the doorbell system peripheral load.
申请公布号 US7477134(B2) 申请公布日期 2009.01.13
申请号 US20070744834 申请日期 2007.05.05
申请人 LANGER PETER;CINZORI DOUGLAS CARL 发明人 LANGER PETER;CINZORI DOUGLAS CARL
分类号 G08B27/00 主分类号 G08B27/00
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