Posts

Reflections on the mains voltage

    Dopo il mio anno sabbatico dovuto a epidemia con relative complicazioni e diversi lutti ritorno a pubblicare È risaputo il fatto che se si deve andare negli Stati Uniti, After my sabbatical due to an epidemic with related complications and various griefs, I return to publishing It is well known that if you have to go to the United States

After my sabbatical due to an epidemic with related complications and various griefs, I return to publishing It is well known that if you have to go to the United States

Niente più valvole dalla Russia Lo stop all’export delle valvole dalla Russia ha messo in allarme i musicisti. After my sabbatical due to an epidemic with related complications and various griefs, I return to publishing It is well known that if you have to go to the United States

Programmable daily timer

      I needed to use a timer, to operate a small mist pump for a small greenhouse, programmable in the following way: 1): active from hours, hours throughout the day. 2): activation…

Electronic power strip

CIABATTA ELETTRONICA Ovvero pilotare 5 prese a 220V tramite WIFI Eccomi con un nuovo progetto e questa volta non si tratta dell’ennesimo orologio più o meno digitale. Some time ago ravanando YouTube looking for some news ...

Current detection

. Methods for detecting the current in order to find the one that best suits the measurement. Shunt: the simplest method is through a Shunt that we can buy or do it yourself with thread with a very low value ...

Simulated inductance

. I recently designed several variable power supplies to test tube amps, actually I designed more than one at the same time with different characteristics. They all have one component in common with the rotator. The shooter ...

48Vdc Phantom power supply starting from 12Vac

. Hello everyone. Here is the wiring diagram, the file for the LT Spice simulator and the photos of a power supply suitable for condenser microphones and DI boxes (Direct Iniection box), all used in the music field. The cicuito ...

Low resistance meter

  Create a circuit for the precise measurement of low resistances. You already have a DMM to measure resistance, but it can be used with resistances lower than 1Ω? And if so, these low resistive readings are reliable? This…

9V by a ni-cd battery with USB charging

. Poking even once in all the drawers looking for a 9V battery charged for a multimeter that has shut in time of need (how could it be otherwise?), I thought it would be nice to have a box of ...

The IGBT Protection

. Principio di funzionamento I primi IGBT erano tiristori modificati per potersi accendere con un comando in tensione. Consider the BJT equivalent circuit of a thyristor and a MOSFET transistor is added between the collector and emitter ...