Also often referred to as a stepping motor, and sometimes known as a step motor. It is a type of induction motor but merits its own entry in this encyclopedia as it has acquired significant and unique importance in electronics equipment where precise positioning of a moving part is needed and digital control is available. […]
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Posts by Farahat
unijunction transistor What It Does,How It Works,Variants,Values,How to Use it and What Can Go Wrong
The unijunction transistor (UJT) and programmable unijunction transistor (PUT) are different internally, but are sufficiently similar in function to be combined in this entry. What It Does Despite their names, the unijunction transistor (UJT) and programmable unijunction transistor (PUT) are not current-amplification devices like bipolar transistors. They are switching components that are more similar to […]
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servo motor What It Does,How It Works,Variants,Values,How to Use it and What Can Go Wrong
Should be referred to as an RC servo if it is intended for use in small devices that are remote-controlled and battery powered. However, in practice, the RC acronym is often omitted. What It Does A servo motor is actually a combination of a motor, reduction gearing, and miniaturized control electronics, usually packaged together […]
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solenoid What It Does,How It Works,Variants,Values,How to Use it,What Can Go Wrong
The term solenoid was historically used to describe any coil without a magnetic core. More recently and more commonly it describes a coil inside of which a cylindrical plunger moves in response to the magnetic field generated by the coil. In this encyclopedia, the term electromagnet has its own entry, and describes a coil with […]
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electromagnet What It Does,How It Works,Variants,Values,How to Use it,What Can Go Wrong
The term electromagnet is used here to mean a coil containing a core of ferromagnetic material that does not move relative to the coil. The core is used solely to create a magnetic field that attracts or repels other parts that have appropriate inherent magnetic properties. Where a center component moves in response to the […]
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inductor What It Does,How It Works,Variants,Values,How to Use it,What Can Go Wrong
The term inductor is used here to describe a coil that has the purpose of creating self- inductance in an electronic circuit, often while passing alternating current in combination with resistors and/or capacitors. A choke is a form of inductor. By comparison, the electromagnet entry in this encyclopedia describes a coil containing a center component […]
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voltage regulator What It Does,How It Works,Variants,Values,How to Use it and What Can Go Wrong
Correctly known as a linear voltage regulator to distinguish it from a switching regulator or DC-DC converter. However, the full term is not generally used, and “voltage regulator” is normally understood to mean a linear voltage regulator. What It Does A linear voltage regulator provides a tightly con trolled DC output, which it derives from […]
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DC-AC inverter What It Does,How It Works,Variants,Values,How to Use it,What Can Go Wrong
A power inverter must not be confused with a logic inverter, which functions as a digital component in logic circuits to invert the state of a low-voltage DC input from high to low or low to high. Logic inverters are discussed in Volume 2. What It Does A power inverter is included here as counter […]
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capacitor What It Does,How It Works,Variants,Values,How to Use it,What Can Go Wrong
Quite often referred to as a cap. Formerly known (primarily in the United Kingdom) as a condenser, but that term has become obsolete. What It Does A capacitor connected across a DC power source will accumulate a charge, which then persists after the source is disconnected. In this way, the capacitor stores (and can then […]
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DC-DC converter What It Does,How It Works,Variants,Values,How to Use it,What Can Go Wrong
Often referred to as a switching regulator, and sometimes as a switcher, not to be confused with a switching power supply. What It Does A DC-DC converter, often referred to simply as a converter, receives a DC voltage as its input and converts it to a regulated DC voltage as its out put. The output […]
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