公开(公告)号：US20140055061A1

公开(公告)日：2014-02-27

申请号：US13832343

申请日：2013-03-15

Applicant: LUTRON ELECTRONICS CO., INC.

Inventor： Samuel F. Chambers ,  Peter W. Ogden, Jr. ,  Jonathan L. Roe ,  Chenming Wu

IPC: H02P7/00 ,  H05B33/08 ,  H05B37/02

CPC classification number: E06B9/68 ,  E06B9/322 ,  E06B2009/6809 ,  H02P7/29

Abstract: A battery-powered load control device (e.g., a motorized window treatment) is able to supply a pulse-width modulated current to an electrical load (e.g., a motor) while conducting a substantially DC battery current from a battery powering the motorized window treatment. The motorized window treatment includes a motor drive circuit for driving the motor with a pulse-width modulated signal to adjust the rotational speed of the motor, such that the motor conducts the pulse-with modulated current. The motorized window treatment also has an input circuit coupled between the battery and the H-bridge drive circuit. The input circuit has an output for conducting the pulse-width modulated load current, and conducts the substantially DC battery current from the battery. The input circuit may comprise, for example, a passive filter circuit (such as an inductor-capacitor filter) or an active circuit (such as a power converter).

Abstract translation: 电池供电的负载控制装置（例如，机动车窗处理）能够向电气负载（例如，电动机）提供脉冲宽度调制电流，同时从为电动窗户处理供电的电池进行基本上DC电池电流 。 电动窗处理包括用于以脉冲宽度调制信号驱动电动机的电动机驱动电路，以调节电动机的转速，使得电动机以调制电流进行脉冲传导。 电动窗口处理还具有耦合在电池和H桥驱动电路之间的输入电路。 输入电路具有用于传导脉冲宽度调制负载电流的输出，并且从电池传导基本上直流电池电流。 输入电路可以包括例如无源滤波器电路（例如电感器 - 电容滤波器）或有源电路（例如功率转换器）。