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Power Supplies 101 – Part 2
In this set of articles, I’m going to be looking at mains powered linear power supplies (PSU’s) but before we start, a word of caution. You should already be aware that the domestic mains voltage, which ranges anywhere from around 110v to 250v AC depending on your country, is lethal and will kill you if you don’t show…
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Power Supplies 101 – Part 1
Safety and transformer basics In this set of articles, I’m going to be looking at mains powered linear power supplies (PSU’s) but before we start, a word of caution. You should already be aware that the domestic mains voltage, which ranges anywhere from around 90v to 250v or more depending on your country, is lethal and will kill…
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Everything you want to know about power supplies.
This series of articles will look at everything related to power supplies (PSU’s). Power Supplies 101 – Part 1 In this set of articles, I’m going to be looking at mains powered linear PSU’s, but before we start, a word of caution. You should already be aware that the domestic mains voltage, which can range…
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Linear Voltage Regulators
The humble 7805 and associated family of linear voltage regulators have been in wide use for many years. When they became available to the hobbyist in the 1970’s they were a bit pricy but with the addition of a couple of cheap capacitors they meant you could build a pretty good and nicely regulated PSU…