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'.
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Reducing LED PWM Noise: Which is the best option?
Driving an LED with a microcontroller should be easy. But when looking into noise, things can get complex...
As an instantaneous voltage indicator used in a variable power supply (which will be used ...
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Using an RC snubber with a triac. Is this design safe? (simulation included)
I'm designing an ac switch for a washing machine motor. No speed control is intended, only a switch to turn the motor on for 10 seconds and off for 10 seconds. I'm using a MOC3063 zero-detecting triac ...
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Routing the circuit for a snubber diode on a PCB?
I understand that the "ideal" place for a snubber diode is across the terminals of the inductive device that generates the flyback. But in the interest of making my PCB design for an Arduino shield as ...
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Questions about RD snubber circuits
I am not too familiar with designing snubber circuits.
Can somebody sanity check the following sizing calculation for a snubber circuit?
Also: Is the undampened rise rime of the voltage due to the ...
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How to design a snubber for optotriac
I've seen in several places this snubber circuit composed of 2.4K and C1 in this particular case.
My question is - what's the purpose of this network exactly and how are the values for the ...
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TRIAC snubber design for multi-purpose switching
I'm designing a circuit to switch a 240V AC load and haven't done a lot with AC power control before. I'm planning to use a Fairchild MC3043-M optically coupled TRIAC driver along with a BT138-600 NXP ...
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How to design an RC snubber for a solenoid relay driving an inductive load?
I read up that switches driving inductive loads need to be snubbed and an RC pair seems to be the best(cheapest?) option. I have a large-ish AC induction motor (for a refrigerant compressor) that is ...
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Flyback diodes issues and pull-in & hold current issues in this Relay circuit
Although this may be a basic question but I'm still struggling with it. In this schematic, two zener diodes D1 and D2 are connected back-to back across relay coil L1. The BVds = -30V for Q1. Can I use ...
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Is this part (given picture) an EM relay, relay-controller, snubber?
Here is a rather bad (low resolution, grainy) picture of a circuit board that claims to be a 2-channel 315MHz ASK/OOK type remote controlled relay set. I can identify the relays, but not the big blue ...
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Optotriac doesn't turn off
I'm using an opto triac, specifically the MOC3041, with a zero crossing circuit to switch the Tx pinout on an RS-232 interface.
I have no problems turning it on, but after I unload the input (no ...
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Snubber design for switching an inductive mains load with a relay
I am envisaging a relay which switches an inductive load consisting of a couple of switched-mode power supplies (standard ATX computer power supplies) in addition to several wall-wart style power ...
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Choosing components for a triac's snubber
I'm interfacing the BT139-600 TRIAC with this MOC3051-M Opto-triac. I want to build a snubber circuit for the TRIAC as shown in the MOC3051M opto-triac's datasheet @ page 8, figure 12.
The load ...
