TSP #246 - High-Voltage Amplification, Signal Generation, Power Supply Design Tutorial & Experiments
In this episode Shahriar dives into the world of high-voltage circuit design. In order to appreciate the engineering involved in the design of a 40kV amplifier, various design techniques for power supplies and their applications are presented. This tutorial is organized as follows:
00:00 – Introductions
00:29 – Amplifier design specifications and challenges
03:18 – Typical high-voltage generation using transformers and its limitations
06:41 – Open-loop transformer high-voltage power supply for discharge tube use-cases
10:18 – Inaccurate HV power supply making precision isolation measurements with Fluke 1587 FC
12:39 – Stanford Research PS350 high-voltage DC power supply design and measurements
21:44 – Vitrek V74 HiPot safety tester design, applications and example breakdown measurement
27:01 – Architecture of a high-voltage amplifier circuit, circuit diagram and theory of operation
32:43 – Teardown & analysis of the Trek Model 20/20B +/- 20kV amplifier instrument
42:02 – Linearity and waveform measurements of the high-voltage amplifier instrument
46:26 – Making ultra-high voltage time-domain measurements using a capacitive divider
48:45 – Discharge tube response as a function of AC frequency & high-power sparks
50:12 – Concluding remarks
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