ELECTRIC ILLUMINATION CONTROL DIMMERS

Brand Owner Address Description
CONTROLITE WARD LEONARD ELECTRIC COMPANY MOUNT VERNON, N.Y. ELECTRIC ILLUMINATION CONTROL DIMMERS AND SWITCHBOARDS USED IN THEATERS OR THE LIKE FOR AFFECTING THE CONNECTIONS OF ELECTRIC LIGHT CIRCUITS AND FOR REGULATING THE CURRENT AND VOLTAGE SUPPLIED TO ELECTRIC LIGHT CIRCUITS;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A pulse width modulation (PWM) illumination control circuit with a low visual noise for driving a light-emitting diode (LED) is provided. An illumination control pulse-generating unit is used to generate an illumination control pulse signal according to an illumination-adjusting signal. A duty cycle, a phase shift or a frequency of the illumination control pulse signal varies with time within a predetermined scope for controlling a DC/DC converter to drive the light-emitting diode so that the overall visual noise level of the PWM illumination control circuit is improved.