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Q&A

Posts tagged TVS

Synonyms: transient-voltage-suppressor transient-voltage-suppressors TVS-diode TVS-diodes

Subtag of Zener-diode

Anything about transient voltage suppressor (TVS) devices, also known as TVS diodes.

TVS are 2-teminal semiconductor devices based on Zener diodes and specifically designed as protection devices against voltage transients. They essentially work as voltage clamps, limiting the voltage across their terminals by absorbing and dissipating the energy of the transient voltage pulse.

This tag doesn't have a detailed wiki yet.

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Q&A Power switches and automotive load dump, unclamped

Power switches used in automotive are usually rated to withstand clamped load dump events, of the 35 - 40 V peak variety. AFAICT there are two main clamping mechanisms - first one for the logic par...

2 answers  ·  posted 8mo ago by kellogs‭  ·  last activity 8mo ago by TonyStewart‭

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Q&A ESD Protection - Differential Amplifier

More about the circuit The circuit is sensing (low side sensing for many reasons) current used to power up the lights with 28V(part of the schematics not shown here -> relay with LC filter ...

3 answers  ·  posted 3y ago by 2kind‭  ·  edited 9mo ago by Lorenzo Donati‭

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Q&A MOV vs. TVS diode

Simple thing that I realized I should know but do not -- when is an MOV preferable to a TVS diode (with some associated network to really make it work, in both cases)? Is it even something to routi...

2 answers  ·  posted 3y ago by Pete W‭  ·  edited 9mo ago by Lorenzo Donati‭

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Q&A Variant of a Mosfet's Gate-Source protection

Let's say a 100V voltage spike arrives at +12V and the TVS diode clamps it to 25V. Q2 may or may not be activated. Will this circuit ensure a V_gs lower than 25V for the mosfet Q1 ? Any catch to it...

1 answer  ·  posted 11mo ago by kellogs‭  ·  last activity 10mo ago by Olin Lathrop‭

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Q&A MOSFET protection with TVS: at the source pin or at the drain pin

In the auotmotive context, does it matter where the fat load-dump grade diode is placed in relation to the MOSFET so as to protect it from both fast positive transients and the longer load dump ? ...

2 answers  ·  posted 12mo ago by kellogs‭  ·  last activity 12mo ago by Lundin‭