Bridge Voltage Regulators
Charles Morton · Journal of Scientific Instruments · 1944
The majority of the voltage-regulating devices described in recent years, especially those of the thermionic type, are restricted in their application to the stabilization of currents of the order of a few milliampères. Bridge voltage regulators, in which one or more of the bridge arms consist of barretters or electronic semi-conductors, are capable of delivering direct or alternating currents of any desired magnitude, and have the advantage over thermionic regulators that the performance shows no appreciable deterioration after long service. The principles underlying the design of bridge regulators are discussed, and the conditions necessary for maximum efficiency of regulation combined with economical power expenditure are investigated. The efficiency of regulation may be considerably increased by connecting two or more regulating bridges in series.