公开(公告)号：US10314129B2

公开(公告)日：2019-06-04

申请号：US15904130

申请日：2018-02-23

Applicant: Lutron Electronics Co., Inc.

Inventor： Steven J. Kober ,  Soma Sekhara Rao Konijeti ,  Rajesh Krishna Thottumkara ,  Keertana Veeranki

IPC: H05B37/02 ,  H05B33/08 ,  H02M1/36 ,  H02M3/335

Abstract: A load control device may be configured to turn on lighting loads to obtain a fast turn-on time that may be substantially consistent across lighting loads that have different load voltages. The load control device may comprise a power converter circuit configured to produce a voltage across a capacitor, and a control circuit configured to control the power converter circuit to generate the voltage across the capacitor. The control circuit may determine a learned voltage from the magnitude of the voltage across the capacitor. For example, the control circuit may measure the magnitude of the voltage and store the measured voltage as the learned voltage. The control circuit may determine an operating parameter for the power converter circuit as a function of the learned voltage, and control the power converter circuit according to the operating parameter to charge the capacitor until the magnitude of the voltage exceeds a threshold.

公开(公告)号：US20180249543A1

公开(公告)日：2018-08-30

申请号：US15904130

申请日：2018-02-23

Applicant: Lutron Electronics Co., Inc.

Inventor： Steven J. Kober ,  Soma Sekhara Roa Konijeti ,  Rajesh Krishna Thottumkara ,  Keertana Veeranki

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0848 ,  H02M1/36 ,  H02M3/33507 ,  H05B33/0815 ,  H05B37/0209

Abstract: A load control device may be configured to turn on lighting loads to obtain a fast turn-on time that may be substantially consistent across lighting loads that have different load voltages. The load control device may comprise a power converter circuit configured to produce a voltage across a capacitor, and a control circuit configured to control the power converter circuit to generate the voltage across the capacitor. The control circuit may determine a learned voltage from the magnitude of the voltage across the capacitor. For example, the control circuit may measure the magnitude of the voltage and store the measured voltage as the learned voltage. The control circuit may determine an operating parameter for the power converter circuit as a function of the learned voltage, and control the power converter circuit according to the operating parameter to charge the capacitor until the magnitude of the voltage exceeds a threshold.