Questions tagged [component-failure]
For questions about what causes components to fail, how to prevent component failure, and component failure modes (e.g. fail open or fail short).
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MOSFET failure in a high power AC-DC SMPS buck converter
I've made a AC-DC step down buck converter that converts 220 VAC to a variable 45 to 70 VDC at 5 to 10 A to charge a Li-Ion battery. I'm currently using ESP32 to drive a MOSFET driver (IR2110) to ...
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2N7000 Mosfet destroyed during soldering?
I have been having problems with 2N7000 mosfets that perform perfectly on the breadboard, but when moved to a perfboard start failing. I'm on my third iteration now, replacing all mosfets, between ...
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MOSFET driver blows out in half-bridge DC motor PWM controller
EDIT: I've redone the MOSFET circuit diagram; it now represents what my actual layout is. I wanted to spare myself redrawing the circuit but ended up confusing everything, I hope it's clearer now!
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Mitigating FET current spikes in an SMPS buck converter
I'm currently designing an SMPS buck converter that converts 311VDC to 60VDC at 10 Amps maximum load. I'm using ESP32 for the PWM control, and IR2110 for the switching driver. The switch I'm currently ...
- 101
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Suitable Replacement for a Dual Coil Latching Relay
After questioning about my broken thermostat there Debugging an old Thermostat: What component is this? (3 pins SMD IC), thanks to @JRE I could find that it was actually the relay on the board that ...
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How to design/build a relay-triggered "crowbar" circuit?
(This is a continuation of Failsafe for relay contact welding.)
I'm trying to wrap my head around something like a "crowbar" circuit, only, instead of tripping on over-voltage, it should ...
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Debugging an old Thermostat: What component is this? (3 pins SMD IC)
My Thermostat stopped working a couple of days ago and I tried to debug it.
The first thing I check is if there is any component that gives a strange result with the multimeter and I found these ...
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