Content for Solid-state Relay

Solid-state Relay

A solid-state relay (SSR) is an electronic switching device that switches on or off when a small external voltage is applied across its control terminals. SSRs consist of a sensor which responds to an appropriate input (control signal), a solid-state electronic switching device which switches power to the load circuitry, and a coupling mechanism to enable the control signal to activate this switch without mechanical parts. The relay may be designed to switch either AC or DC to the load. It serves the same function as an electromechanical relay, but has no moving parts. Packaged solid-state relays use power semiconductor devices such as thyristors and transistors, to switch currents up to around a hundred amperes. Solid-state relays have fast switching speeds compared with electromechanical relays, and have no physical contacts to wear out. Application of solid-state relays must consider their lower ability to withstand momentary overload, compared with electromechanical contacts, and their higher "on" state resistance. Unlike an electromechanical relay, a solid-state relay provides only limited switching arrangements (SPST switching).

DIY reflow plate

“I’m preparing a video where I show you how to make the PCB design and order the panel version for your board and then solder all components at once. In that way you can save time and finish your …

Low Profile 2 Channel Solid State Relay for AC Loads

“This project offers an extremely compact solution for interfacing 2 high voltage resistive or inductive loads. At a low profile, this is the most compact & versatile optically isolated 2 channel solid state relay system. The circuit consists of 2x Triacs …

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DIY Automatic Musical Christmas Lights (MSGEQ7 + Arduino)

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“Weve been loving our Shapeoko CNC and have made some fun projects recently. One thing we need to improve on is nesting designs to minimize waste. In order to reuse the scrap aluminum, we made this electric foundry to melt …

SSR Latching Circuit With Push Buttons

“Im planning to add some power tools to the underside of my workbench so I can make a table router for example. The tools will mount from the underside on some sort of a removable plate so they can be …

Power Timer With Arduino and Rotary Encoder

“This Power Timer is based on the timer presented at: https://www.instructables.com/id/Timer-With-Arduin… A power module and an SSR (solid state relay) were attached to it. Power loads of up to 1KW can be operated and with …

Automatic Load (Vacuum) Switch With ACS712 and Arduino

“Hi Everyone, Running a power tool in a closed space is a hustle, because of all of the dust created in the air and dust in the air, means dust in your lungs. Running your shop vac can eliminate some …