I need a simple circuit to protect my device from overvoltage (more than 13V). Typical working DC input voltage is 7-12V. Can I use this circuit: Will it work? UPD. OK, it will not. I was too stup...

Aug 12, 2020 · Which is the most cost effective way to protect a DC circuit that requires 5V input (and draw up to 1A) from external power supply? Suppose that a careless user can accidentally attach an …

Mar 3, 2013 · How do I protect a 3v DC circuit from being damaged, if someone accidentally plugs in a 12v power supply? The circuit will draw much less than 1 amp.

Apr 20, 2021 · TLDR : Ideal supply voltage of a device is 12v DC (labeled near jack). User may mistakenly provide anything from 3 to 24 DC (or maybe 220v AC). how to protect the circuit against …

Feb 5, 2023 · I would like to add overvoltage and reverse polarity protection to my circuit. Searching on the internet, I saw that the solution that seems to be the most popular is this: I have seen there is a ...

Mar 1, 2024 · The simplest reverse connect circuit is a reverse biased diode connected across the input in series with a fuse. To protect against a sustained over voltage rather than transients you can use a …

Aug 13, 2024 · 0 I’ve been trying to figure out how this circuit works but I don't quite understand the point of D32. D23 is a 33V Zener D32 is a 15V Zener D19 is a Schottky it just has the wrong symbol. Q24 …

Jun 27, 2019 · I'm developing an analog input module based on TI's ADS8668 and want to protect the input channels from over-voltage. According to the datasheet, each analog input channel withstands …

Aug 8, 2023 · A TRIAC can do this A MOSFET can't Your circuit is a glorified power Zener diode The MOSFET will be in danger of thermal runaway Why am I destroying MOSFETs in this overvoltage …

Jan 13, 2022 · But perhaps the self-resetting protection circuit could be in the form of a fold-back current limiter, often used in power supplies and amplifiers, that limit the amount of power dissipated by the …