All items tagged with power and power supplies (242)

1-07-2012 | Smoke alarms are extremely useful devices, but they suffer from one significant disadvantage, which is that they’re battery powered. This ci...

1-06-2012 | This month we close off the discussions of the individual boards that make up the preamplifier, both in terms of theory of operation and con...

8-05-2012 | It should have display of voltage and current. It's often I would need PSU like this but I haven't found any chematics with voltage up to 40...

1-04-2012 | Anyone who develops circuits using microcontrollers knows that plug-in ‘wall wart’ power packs do not always make suitable power supplies. O...

1-07-2011 | Occasionally you come across some unusual situations when setting up measurement systems. The author once had to set up a system to register...

1-09-2010 | For the Unilab power supply module, we have developed a special meter circuit in the Elektor Labs with a four-line display that shows the ou...

1-07-2010 | If you want to check the behaviour of an electronic circuit at low voltages, an adjustable power supply as shown here may be helpful. Powere...

1-06-2010 | Why couldn’t you just connect two standard switch-mode power supplies in series to create a symmetrical power supply for a power amplifier?...

1-02-2010 | Practically every electronic circuit needs one: a power supply. The most common source of energy for all our circuits is the AC power outlet...

1-02-2010 | How can you find out how stable a lab or benchtop supply is? You can get a good impression of the stability of a power supply under various...