Conference paper
Optimizing efficiency on conventional transformer based low power AC/DC standby power supplies
This article describes the research results for simple and cheap methods to reduce the idle- and load-losses in very low power conventional transformer based power supplies intended for standby usage. In this case "very low power" means 50 Hz/230 V-AC to 5 V-DC@1 W. The efficiency is measured on two common power supply topologies designed for this power level.
The two described topologies uses either a series (or linear) or a buck regulation approach. Common to the test power supplies is they either are using a standard cheap off-the-shelf transformer, or one, which are loss optimized by very simple means.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2004 |
| Pages: | 313,314,315,316,317 |
| Proceedings: | 19th Annual IEEE Applied Power Electronics Conference and Exposition |
| ISBN: | 0780382692 and 9780780382695 |
| Types: | Conference paper |
| DOI: | 10.1109/APEC.2004.1295827 |
1 W 230 V 5 V 50 Hz AC/DC standby power supply Capacitors Emergency power supplies Optimization methods Power generation Power measurement Power supplies Power transformer insulation Regulators Topology Voltage buck regulated topology load-losses losses network topology optimisation optimization power conventional transformer power supplies to apparatus power supply topology power transformers series regulated topology
