Developments in High Bandwidth Power Amplifier Technology for Compact Cost Effective Calibrator Applications

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Developments in High Bandwidth Power Amplifier Technology for Compact Cost Effective Calibrator Applications (983.65 KB)

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 enabling the design of high bandwidth power amplifiers compact enough to be integrated within the calibrator in a single enclosure, eliminating the need for a separate Boost Amplifier, and their impact on calibration applications.