|dev_in_high_bw_p_amp_tech.pdf|| Developments in high bandwidth power amplifier technology for
compact cost effective calibrator applications.
Paul C. A. Roberts - Applied Technology Manager,
Fluke Precision Measurement Limited, UK.
The workload of a modern calibration laboratory has placed ever greater demands on the
Calibration Source, both in terms of functionality and the combination of voltage, current and
frequency required to calibrate today's diverse range of instruments.
This need for high voltage and high current at high frequency into demanding loads such as
clamp meters and current coils, combined with a desire to produce ever more economic and
compact calibrators, has resulted in a number of significant developments in the transition from
the vacuum tube designs common in the past to today's solid state designs employing the latest
semiconductor and transformer technologies.
This paper explores the development of technologies enab|