Questions tagged [surge]
The surge tag has no usage guidance.
17 questions
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What makes some diode surge rated higher than others?
The title explains it all. How various diodes can be assigned distinct surge current ratings? I understand that higher current implies greater power dissipation (don't know if its true for diode but ...
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1
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1.2/50 us Combinational Wave Generator (Surge Test) Simulation - Help Needed
I am looking for assistance in editing my LTspice simulation for the design mentioned in the title. I have provided the design and output (open + short circuit) expectations (First two screenshots), ...
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3
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Do electricity bills include surge power, energy, or both? [closed]
I read that motor-driven appliances have additional surge power, which makes it better to turn it on for some times rather than on and off in short period of time.
Is it because the electric bills are ...
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1
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Is a surge a common-mode signal or a differential mode signal?
When a power circuit is powered up, there is always a surge because there is often a big capacitor connected to the input to filter the noise.
Is the surge a commom-mode signal or a differential-mode ...
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Using two varistors in series when there is no possibilty of using single component
I need to use Varistor to protect the circuitry from 6kV 1,2/50us impulse.
Varistor has to be between input + and - wires. The operational voltage between this two input pins can be up to 1050 V.
I ...
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Surge Protection Device installation and MCB [closed]
On LSP's website there's this wiring diagram for a single-phase surge protector in a sub-distribution box (Type 2). The SPD is the gray device:
Could someone explain the purpose of the MCB inside the ...
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1
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2
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79
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Calculating power and energy of a surge waveform
As far as I know, to determine if a Surge Protection Device (SPD) is suitable for a specific scenario, it must be capable of handling the energy of the surge for the duration of that surge.
I want to ...
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Is it possible to shutdown SCR when high current is passing through it?
I have a project in which I need a controllable high voltage (400+ V) high current (10+ kA) pulse (from μs to ms.)
Obviously FETs won't cut it because the high voltage will destroy the channel of any ...
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2
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123
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How does a voltage surge/spike affect the wall wart power supply's secondary side?
In the photo, you can observe an old-style adjustable wall wart AC to DC power supply, typically composed of a primary winding, secondary winding, rectifier, and capacitor. If a voltage surge or spike ...
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LTspice MOV tutorial/help
I am looking at the availability of the pictured component on LTspice and cannot find it when I type it in the component library search. Please let me know the component symbol name or if I need to ...
0
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1
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How does a negative voltage surge waveform look?
I am trying to generate a surge pulse source in Xpedition AMS simulation tool. Attached is a +2kV-1.2/50us surge waveform I have currently generated. Now, I want to generate a -2kV waveform with same ...
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Choosing optimal and best components for surge protector
There is a plug type surge protector I'm trying to design and I want varistors to resist the surge protected plug when there is a high transient voltage spike above 275-300 VAC coming from mains power....
0
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1
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Can a damaged LCD cable cause a power surge that breaks a PCH chip in a laptop?
My laptop's screen stopped working but otherwise was functioning fine when attached to a separate screen.
I took it to a laptop place thinking it'll be an easy fix.
They told me that the LCD cable had ...
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0
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36
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Metal Oxide Varistor
Asking for recommendations on selecting a correct Metal Oxide Varistor (varistor) size for a home sprinkler system (surge-protector circuit I am building).
Any help would be greatly appreciated. I am ...
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MCU surge protection when controlling AC blinds motor using relay
I'm designing a very simple module to control blinds AC motor with MCU through relay:
(I tried bunch of various schematics,not sure which one so attach. Adding diagram instead)
When MCU enables the ...
0
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1
answer
38
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Does the unidirection TVS diode like SMAJ15A be used on DC lines to protect the IC or Converters from negative Peak, clamp down to -0.6V?
Most of the DC- DC converters have absolute maximum down to -0.6. If bidirectional TVS diode is used then negative peak cannot be clamped near to -0.6v, in this is the case can we use the ...
-2
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Can the efficacy of an air conditioner be affected by a surge protector? [closed]
For years, I have had my 8000 BTU window air conditioner plugged into this CE TECH 8-outlet surge protector. It was the only item plugged into it. Recently, I switch it to this TROND 13-outlet surge ...
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