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relay circuits & projects (18)

Browse through a total of 18 relay circuits & projects.

relays

Common Types of Relay

P. Marian - 01/21/2014

You can choose from a wide range of relays but do you know what type to use in [...]
reed relay

Reed Relay

P. Marian -

The reed relay consists of a switch with magnetic contacts that move under the influence of an external [...]
NC dpst switch

Double Pole Single Throw DPST Relay

P. Marian -

The Double Pole Single Throw DPST relay is the equivalent of 2 SPST switches (NO Normally Open and [...]
DPDT switch

Double Pole Double Throw DPDT Relay

P. Marian -

The DPDT relay (Double Pole Double Throw) is quite interesting and can be used in various scenarious, including [...]
spdt relay switch

Single Pole Double Throw SPDT Relay

P. Marian -

The Single Pole Double Throw SPDT relay is quite useful in certain applications because of its internal configuration. [...]
NC normally closed relay

NC SPST Normally Closed Relay

P. Marian -

The NC Normally-Closed SPST (Single Polse Single Throw) relay has an initial closed circuit state when no current [...]
NO normally open relay switch states

NO SPST Normally Open Relay

P. Marian -

The NO Normally-Open SPST (Single Pole Single Throw) relay has an opened circuit state when no current is [...]
Run-Stop Relay Circuit Schematic

Run/Stop Relay Circuit

Jim Keith - 03/19/2013

Safety is a major concern in a good many motor-driven applications. This is true in industrial applications where [...]
Relay Economy Circuit 1

Relay Economy Circuit

Jim Keith - 12/20/2012

Relays continue to be useful and popular, but in low-power, battery operated applications they tend to be power [...]
Cheapest Power Relay at DigiKey

Relay Driver

Jim Keith - 11/21/2012

Relays have been around for a long time and though often now replaced with solid state switches, they [...]

555 (TLC555) Relay Driver Circuit

Jim Keith - 11/15/2012

Many integrated circuits have undocumented features or abilities. This is one of them. The TLC555 output (pin 3) [...]
temperature relay circuit schematic

Temperature Relay Circuit

P. Marian - 07/21/2012

This simple temperature relay circuit can be used to signal a fire or setpoint for temperature monitoring function. [...]
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