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3 votes

Control a large array of high-power LEDs with a GPIO pin

The chosen MOSFET is more than enough to accomplish the task, although it would be nice to know the driver voltage. There is no need for a "beefier" device. The bench testing failure is due ...
RussellH's user avatar
  • 15.1k
1 vote

Is it possible to shutdown SCR when high current is passing through it?

You can use an external circuit to force commutate the current to zero, turning your SCR off. Given the cost of it, you'll be better off with an IGBT or possibly GTO. Source: https://circuitdigest....
winny's user avatar
  • 14.7k
4 votes

An upgrade of a simple welder

There are a number of problems with your design. As mentioned in the comments a 1N4148 is too small for the current you wish to use, and testing a 120 V transformer with 230 V was not wise (I'm ...
Math Keeps Me Busy's user avatar

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