188705 ⎘
Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems; Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices discharge tubes only
Low voltage tube circuits
#2Soft start circuit and method for DC-DC voltage regulator
#3Power supply apparatus, control apparatus, and program therefor
#4Remote monitoring of glow tube light output including a logic unit maintaining an indication of a monitored glow tube discharge while no discharge is detected