Some of my articles relating to power - there are many more but under different names …
Making Sense of Current Transformers
Current sense transformers are commonly used for monitoring, control and protection and can be as simple as a single winding on a toroidal core to sense the current in a wire passing through the core. This article describes some pitfalls to avoid and techniques to employ to achieve best performance. A high frequency current transformer is used as an example but the principles apply equally at low frequencies
Impact of Burn-
Through proper testing and analysis of the accumulated data, power supply manufacturers can select the appropriate level of burn-
DC-
IGBTs are commonly used in high power inverter and converter circuits and can require significant isolated gate drive power to switch optimally. This paper describes how small isolated DC-
When selecting an inductor for the output storage element of a switching DC/DC regulator, a designer can be faced with a bewildering array of options from different suppliers and even within the ranges of one supplier. Using a ‘point of load’ converter as an example, this article explains what the choices
are and what advantage one choice might have over another. The principles generally read across to all inductor applications
Snubber Design, selection and measurement techniques Bodo’s Power Feb 2022
An article I wrote for Rohde and Schwarz about power supply snubber design and how to measure performance
Understanding the 3rd edition medical safety standard
Isolation ratings are explained for medical power devices particularly DC-
Partial Discharge theory and testing
An explanation of ‘Partial Discharge’ and how it affects the isolation barrier in power converters
Converter Outputs in series -
Series connection of outputs of power converters can lead to confusing or even damaging effects. This article explains how this can happen and how the effects can be mitigated