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I have a device that is currently powered from a "wall wart" power supply (@15V). It's basically four strings of high brightness LED's. Each string is controlled by a constant current buck LED driver - everything works OK.
I've been asked about the feasibility of making an add-on module to...
Thanks for the tip on the off-the-shelf parts. I was aware of a few parts (I think they were NXP?) but I did not have much luck with higher current parts. I need to handle about 10-20 amps in a P-channel and the other parts I saw topped out around 3-5amps.
Thanks for the info.
Can you explain "hiccup method"? You're suggesting an op-amp to measure the voltage across a sense resistor so the output of the op-amp would take the gate high on an N-fet and turn it off? And this is fast enough to protect the FET even if I was to short the output to...
Sorry to reply to the thread so late.... been traveling a bit for work.
The problem I see with using large components so that they won't fail is that the power source is a lead acid battery, so the potential current if the output was shorted could be 2000 amps. I could use an old fashioned...
Hello folks,
I am designing a circuit that will supply 12V to a device that the user will connect - the voltage will be switched by a MOSFET which will be controlled by a microcontroller based on some input.
For example, imagine the user uses this device to switch a bulb on/off based on some...
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