TDK-Lambda EMI

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The Electronic Measurements Inc. TCR series are SCR phase controlled regulated power supplies. Output is controlled by modulating the conduction angle of the controlled SCRs. Input AC is applied to three pair of bi-directionally connected SCRs placed within the delta connected primary of the main power transformer. Secondary voltage is rectified and double L/C filtered to provide a low ripple DC output.

The Lambda EMI ESS series is a high power Constant Voltage, Constant Current Programmable DC power supply. It features a pulse-by-pulse current limit for high current applications such as RF amplifiers, DC motors and magnetic coils.