A snubber is a circuit used to suppress transient voltages in electrical circuits. It can include RC snubbers that comprise a resistor and a capacitor in series, often used for AC circuits, and also a diode used across relays and other inductive components to suppress their inductive 'kickback'.
Questions tagged [snubber]
214 questions
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How to calculate resistor and capacitor size for snubber circuits
I have a 24 VAC Contactor that I want to drive with a microcontroller through a photmos. How do I calculate the proper size resistor and capacitor for a snubber circuit? Here are some of the specifics. Thank you for your help!
Microcontroller - 5V…
Superheat
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RC snubber placement
I would like to ask you about a problem that I have been experiencing recently. I am using a contactor to safely disconnect a hybrid motor starter. The starter is designed to, when tripped with its signal, disconnect the motor during the…
lyurealm
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RC snubber across switch or inductor
What are the differences one should consider between designing an RC snubber across a switch and across an inductor? Is there any preference for putting it across the switch?
Rol
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Resistor in RC snubber
What is the purpose of resistor to suppress EMI? Couldn't I just use a suppression capacitor alone between the coil of the relay or contactor? I have tried to use capacitor alone and it did reduce EMI in my project, but I'm just curious of the…
OnePiece0039
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Snubber circuit for SPI clock and SPI MOSI
I am using the SPI interface to communicate with the MEMS sensor (ASM330LHH). My plan is to operate it at a 10 MHz speed.
The PCB is split into two parts, connected by cables. The distance between the processor board (TMS5703137CGWTQEP) and the…
Priya
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Zener snubber analysis
Lets imagine a Forward/Flyback converter with a zener snubber. How to analyse how this DZ snubber works?
My problem is that how can I know what is the voltage of the common node of the two diodes? What is the right method to approach it?
An…
U.L.
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how do i actually put a diode across a motor?
I've had frequent failed switches on my portable automobile air pump. The last time it failed it shows sparks on the switch. I've been reading around and it seems that I need to add a diode across the motor, something like 1N4004 seems to do the…
Budi
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