Properly known as an electromagnetic armature relay to distinguish it from a solid-state relay. However, the full term is very rarely used. It may also be described as an electro mechanical relay, but the term relay is normally understood to mean a device that is not solid state. What It Does A relay enables […]
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Electronic Components
switch What It Does,How It Works ,Variants,Values,How to Use it and What Can Go Wrong
The term switch refers here to a physically operated mechanical switch, controlled by flipping a lever or sliding a knob. Although there is some overlap of function, rotary switches and pushbuttons have their own separate entries. Solid-state switching components are described in entries for bipolar transistor, unijunction transistor, and field-effect transistor. Integrated-circuit switching devices […]
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pushbutton What It Does,How It Works,Variants,Values,How to Use it and What Can Go Wrong
Often referred to as a pushbutton switch and sometimes as a momentary switch. In this encyclopedia, a pushbutton is considered separately from a switch, which generally uses a lever-shaped actuator rather than a button, and has at least one pole contact where a pushbutton generally has contacts that are not distinguishable from each other. […]
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rotary switch What It Does,How It Works ,Variants,Values,How to Use it and What Can Go Wrong
Not to be confused with rotational encoder, which has its own entry in this encyclopedia. What It Does A rotary switch makes an electrical connection between a rotor, mounted on a shaft that is turned by a knob, and one of two or more stationary contacts. Traditionally, it was the component of choice to select […]
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rotational encoder What It Does,How It Works ,Variants,Values,How to Use it and What Can Go Wrong
The term rotationalencoder used to be reserved for high-quality components, often using optical methods to measure rotation with precision (more than 100 intervals in 360 de grees). Cheaper, simpler, electromechanical devices were properly referred to as control shaft encoders. However, the term rotational encoder is now applied to almost any device capable of converting […]
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fuse What It Does, How It Works ,Values ,Variants ,How to Use it and How to Use it
What It Does A fuse protects an electrical circuit or device from excessive current when a metal element inside it melts to create an open circuit. With the exception of resettable fuses (discussed separately in “Resettable Fuses” (page 24)), a fuse must be dis carded and replaced after it has fulfilled its function. When high […]
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battery What It Does,How It Works,Variants,Values,How to Use it and What Can Go Wrong
This entry covers electrochemical power sources. Electricity is most often generated ectromagnetically, but since these sources cannot be classified as components, they are outside the scope of the encyclopedia. Electrostatic sources are excluded for similar reasons. A battery is sometimes referred to as a cell or power cell, but can actually contain multiple cells, as […]
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jumper What It Does , How It Works , Variants ,Values ,How to Use it and What Can Go Wrong
jumper A jumper may also be referred to as a jumper socket or a shunt. A jumper should not be confused with jumper wires, which are not considered components for the purposes of this encyclopedia. OTHER RELATED COMPONENTS What It Does A jumper is a low-cost substitute for a switch, where a connection has to […]
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