Overvoltage Protection (OVP) using LTSpice

#overvoltage #OVP #overvoltageprotection #ltspice
In this video over voltage protection circuit simulation explains.
The selection of the pass transistor Q1 is important based on the load requirement.
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ltspice file - drive.google.c...

[@billlee7067]

Thanks for your detail mention and let me learn more how to use ltspice.

[@ElectronicsCircuitHubECH]

Glad it was helpful!

[@savinogiovannimuscio2953]

Very good video; i have one question: the circuit will cut the voltage in more or less 50 u seconds (from 12V to 1 V). How we can cut the voltage fasten, ex. in 4 useconds?

[@ElectronicsCircuitHubECH]

Hi...Thanks for your question...you can use comparator based circuit...faster opamp will do the job for you. Incase of short circuit even usually comparator based designed are preferred.

[@TheMonU100]

How are the resistor values selected?

[@ElectronicsCircuitHubECH]

Hi. Do you want to to know about any specific resistor. Generally if you know your current flowing through branches and voltage at node ....you can find the resistor.

[@TheMonU100]

@ElectronicsCircuitHubECH do the resistor selections impact the current received at the load when in the nominal range? Is there an optimal set of resistors to supply a 5v load at 500mA?
Thank you in advance!

[@HasanYldrm-bg8zy]

Hello, what do we need to do to increase the overvoltage value to 17 volts?

[@TomasApolonia]

use a 16v zener

[@giyoharto1307]

Could u change the zener with tl431 and simulate sir? Thank you very much

[@ElectronicsCircuitHubECH]

noted your comment, thanks !

[@adayinjune347]

what if i use 2 NPN bjt? could you design it. thanks

[@ElectronicsCircuitHubECH]

Let me try...Thanks

[@sudhansumtripathy]

how the current flows draw the diagram, without that it is not helping\

[@ElectronicsCircuitHubECH]

Thanks for your input...I will take it up.