公开(公告)号：US5365148A

公开(公告)日：1994-11-15

申请号：US978816

申请日：1992-11-19

申请人： Paul E. Mallon ,  Gary S. Bateman

发明人： Paul E. Mallon ,  Gary S. Bateman

IPC分类号： G05F1/45 ,  H05B39/04 ,  G05F1/00

CPC分类号： H05B39/048 ,  G05F1/452 ,  Y02B20/148 ,  Y10S315/04

摘要： A dimmer control circuit for application to a load bank produces a sinusoidal power wave form exhibiting the desirable characteristic of suitable rise and fall times producing little or no audible or radio frequency interference. A pair of MOS-FET power devices operate in a linear mode and attenuate respective half-cycles of a single phase power line as a function of a dimmer control signal applied thereto. The device includes a mechanism for avoiding damage to the power MOS-FET by controlling conditions under which a signal change is applied to the gates of the MOSFETs, and by imbalanced attenuation between the MOS-FETs through the range of the dimmer control signal.

摘要翻译： 用于应用于负载组的调光控制电路产生正弦功率波形，表现出合适的上升和下降时间的理想特性，产生很少或没有可听或无线电频率干扰。 一对MOS-FET功率器件以线性模式工作并衰减作为施加到其上的调光器控制信号的函数的单相电力线的相应半周期。 该装置包括通过控制向MOSFET的栅极施加信号变化的条件以及通过调光器控制信号的范围通过MOS-FET之间的不平衡衰减来避免损坏功率MOS-FET的机构。