A LOW-COST SWITCH FOR AC-DC TRANSFER

M. Kampik

Abstract

A low-cost switch for ac-dc transfer is presented in this paper. The switch performs fast switching of the input of the thermal voltage converter (TVC) between AC and DC calibrator outputs. It can be controlled through the GPIB bus, manually and through the serial RS-232 interface. Both 4-wire and 2-wire connection between the TVC and the calibrators is possible. The switch provides very fast switching. The dead time of the switch is less than 5 ms. The switch is well protected against relay and power failures.

Keywords

transfer switch, AC-DC transfer, thermal voltage converter

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IMEKO-WC-2000-TC4-P134.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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