公开(公告)号：US20160172855A1

公开(公告)日：2016-06-16

申请号：US14903667

申请日：2014-07-08

Applicant: SMITHS DETECTION INC.

Inventor： Leonard Cardillo

IPC: H02J3/12 ,  G05B15/02

CPC classification number: H02J3/12 ,  G05B15/02 ,  G05F1/66 ,  H02M3/156 ,  H02M2001/0016 ,  H02M2001/0025 ,  H05B1/023

Abstract: Systems and techniques for supplying constant electrical power within component tolerances to a resistively changing load in an electrical circuit are described. A method includes receiving an indication of a characteristic voltage associated with a load in an electrical circuit. The method also includes receiving an indication of a characteristic current associated with the load, where the indication of the characteristic current is received as an indication of a second characteristic voltage. The method further includes determining a power consumption associated with the load based upon the indication of the characteristic voltage and the indication of the characteristic current. The method also includes adjusting at least one of a voltage or a current supplied to the load based upon the power consumption associated with the load and a desired constant power consumption for the load.

Abstract translation: 描述了将元件公差内的恒定电力提供给电路中的电阻变化负载的系统和技术。 一种方法包括接收与电路中的负载相关联的特征电压的指示。 该方法还包括接收与负载相关联的特征电流的指示，其中接收到特征电流的指示作为第二特征电压的指示。 该方法还包括基于特征电压的指示和特征电流的指示来确定与负载相关联的功率消耗。 该方法还包括基于与负载相关联的功率消耗和负载的期望的恒定功率消耗来调整提供给负载的电压或电流中的至少一个。