Title :
An Audio Frequency Multiplier With Planar Thermal Converters for Power Measurements
Author_Institution :
Phys.-Tech. Bundesanstalt, Braunschweig
fDate :
4/1/2009 12:00:00 AM
Abstract :
A multiplier based on thermal converters was developed for use in broadband power measurements. The topology of the multiplier suppresses its static error by means of an improved summing circuit. It employs a fast synchronous ac-dc transfer technique to shorten the measurement time. The uncertainties evaluated at the nominal voltage of 3 V are on the order of a few parts in 10-6 for frequencies up to 30 kHz and a few parts in 10-5 for frequencies up to 100 kHz.
Keywords :
AC-DC power convertors; frequency multipliers; least mean squares methods; summing circuits; audio frequency multiplier; broadband power measurements; planar thermal converters; static error suppression; summing circuit; synchronous ac-dc transfer technique; voltage 3 V; AC–DC transfer; AC–DC transfer; power measurements; root mean square (RMS); thermal converter (TC);
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2008.2006965
