Posts

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 ...

TEN STARS

  TEN STARS Giochi di luce per una stella a dieci punte Che barba, how boring, how boring, How boring: final smash a beloved couple who sadly no more. In these days of forced seclusion serves industrious ...

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 ...

Fuel Cells

. Rechargeable batteries are not clearly enough to power electric cars for a considerable period of time. Without reliable and capacious batteries, you lose the challenge of mass mobility. So the industry is working ...

BATTERY POWERED TESTER

. TESTER BATTERIE AUTOALIMENTATO Dietro pressanti richieste di un'amica che lavora come addetta all'accettazione presso un centro assistenza ho progettato un tester veloce per batterie. You can not imagine how many come with remote controls ...

Circuits restraint soft

. The use of a single tactile button to toggle a circuit ON and OFF requires a circuit containing a logical bistable latch. Such a latch may be implemented using a flop flop or using a positive feedback ...

Bluetooth control with 12F675

  This is a simple control via Bluetooth. The thing is quick to implement using those modules available on the market. With a HC-06 and a few components you create an easy control with the data communication via serial. The…