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Q&A

Posts tagged relay

Synonyms: relays

Subtag of component

Anything about relays.

A relay is an electrically-controlled switch that uses an electromagnet to change the position of the switching contacts.

Do not use this tag for solid-state relays, since they are completely different devices.
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Q&A Burned Source Driver - Noise Spikes from Relay Coil

I am trying to figure out what is causing an Allegro A2982 source driver to burn up. The source driver (A2982) is connected to the coil of a Panasonic TXS2-9V relay. The source driver and coil ar...

1 answer  ·  posted 7mo ago by mrbean‭  ·  last activity 7mo ago by Olin Lathrop‭

Question relay source-driver
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Q&A How Relay inrush current limiter works?

In this circuit below the relay circuit part is acting as an inrush current limiter, but I can't understand how it works since the current is flowing in both conditions where the relay is open or c...

1 answer  ·  posted 1y ago by deleted user  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Switch-off time of relay with flyback diode

When switching a relay there should be a flyback diode. It could be just a diode or diode with resistor in series. I understand there is a difference in the speed of relay switch-off. But what is t...

1 answer  ·  posted 4y ago by Chupacabras‭  ·  last activity 4y ago by Olin Lathrop‭

Question relay
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Q&A Driving relay, transistor keeps failing

I'm trying to drive a relay according to a 5 V digital signal, using this circuit: It works for a while, but then the transistor fails. When I replace the transistor, it works for a while again, ...

1 answer  ·  posted 4y ago by Olin Lathrop‭  ·  last activity 4y ago by Olin Lathrop‭

Question relay