electrical equipment
What is a transformer, its device, principle of operation and purpose
The device and operation of the transformer. Types of cores for transformers. The concept of an autotransformer. The use of transformers. Voltage transformation
What is an optocoupler, how it works, main characteristics and where it is used
The device and types of optocouplers, what is it. Advantages and disadvantages of optocouplers. Scope of optocouplers and where they are used.
Purpose, characteristics and analogues of the transistor 13001
The main technical characteristics of the transistor 13001. Package options and pinout 13001, analogues. Scope of transistors 13001.
What is a heterodyne in simple words and where is it used
What is a local oscillator, its purpose, a description of the operation of a local oscillator and the principle of heterodyne reception. Basic requirements for the parameters of the local oscillator.
Description, device and principle of operation of a field-effect transistor
Device, CVC and types of field effect transistors. Unipolar triodes with p-n junction, with an insulated gate. Schemes for switching on field-effect transistors.
What is a microcircuit, types and packages of microcircuits
What is a microchip. Their purpose and use. Types of modern microcircuits. Chip cases.Benefits of using microchips.
What is the difference between the connection diagrams of the motor windings with a star and a triangle
Connection of motor windings according to the star and delta scheme. Comparison of connection schemes with each other. Switching scheme from star to delta.
What is an attenuator, how it works and where it is used
What is an attenuator and how does it work. Types, electrical diagrams, main characteristics and scope. adjustable attenuators.
What is a thermistor, their varieties, principle of operation and methods of testing for performance
What is a thermistor, device, types, principle of operation and main characteristics. How to check the thermistor for performance. Where applicable
What is a Hall sensor: principle of operation, device and methods of testing for performance
The principle of operation of Hall effect sensors. Varieties of Hall sensors, their device and applications. How to check the Hall sensor for performance, ...
Description, characteristics and switching circuit of the voltage stabilizer KREN 142
What are voltage stabilizers KREN 142. Varieties and analogues of microcircuits. Main technical characteristics. Purpose of conclusions and principle of operation ....
Deciphering the digital and letter marking of SMD resistors
Three-digit and four-digit marking of SMD resistors. Marking SMD resistors according to EIA-96. Tables of code-values ​​and multipliers for marking resistors according to EIA-96. Examples...
What is a voltage rectifier and what is it for: typical rectifier circuits
Why do you need a rectifier in electrical engineering. The principle of operation of rectifiers. Typical rectifier circuits: single-phase and three-phase rectifiers and rectifiers with multiplication...
Description, specifications and analogues of rectifier diodes of the 1N4001-1N4007 series
Description and application of 1N4001 - 1N4007 series rectifier diodes. Main technical characteristics of diodes 1N4001 - 1N4007. What are the domestic and ...
How the TL431 chip works, switching diagrams, description of characteristics and performance check
What is the TL431 chip. Main characteristics, purpose of conclusions and principle of operation of TL431. Examples of switching circuits and which ones exist ...