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Posts tagged overvoltage

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71%
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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 1mo ago by kellogs‭  ·  last activity 1mo ago by TonyStewart‭

Question overvoltage
66%
+2 −0
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 4mo ago by kellogs‭  ·  last activity 4mo ago by Olin Lathrop‭

Question overvoltage
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+2 −0
Q&A Over-voltage protection for device with photovoltaic cell source

I have a solar panel rated for 6V open-circuit and up to 150mA. I would like to connect this to an SPV1040 or similar buck-boost converter with MPPT functionality to be able to charge a 3.6V batter...

2 answers  ·  posted 5mo ago by Keelan‭  ·  last activity 4mo ago by TonyStewart‭

Question overvoltage
71%
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Q&A Isolated Digital Input - Overvoltage protection

I am trying to build an active-low digital isolated switch capable of withstanding 32VDC voltage without creating any damage to the system. This is the snapshot of the circuit not fulfilling the r...

3 answers  ·  posted 2y ago by 2kind‭  ·  last activity 2y ago by Olin Lathrop‭

Question overvoltage