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What is a Synchronous Motor?

A synchronous motor is an AC motor that generates torque by the interaction of the excitation magnetic field supplied by a direct current and the rotating magnetic field of the armature, and rotates at a synchronous speed.) is an AC motor that generates torque by the interaction of the DC-powered excitation magnetic field and the rotating magnetic field of the armature, which rotates at a synchronous speed. A synchronous motor is an AC motor that generates torque by the interaction of the excitation magnetic field supplied by a direct current and the rotating magnetic field of the armature, and rotates at a synchronous speed.) is an AC motor that generates torque by the interaction of the DC-powered excitation magnetic field and the rotating magnetic field of the armature, which rotates at a synchronous speed. An AC motor in which the rotation of the rotor is the same as the rotation of the stator's rotating magnetic field. The rotor speed n, the number of magnetic pole pairs p, a...

Clamp Diodes: Principles, Functions, and Applications

Clamp means jamming the position. In circuit, is means controlling the voltage. Clamp Diode is a kind of diode that is used to limit the potential of a certain point in the circuit, controlling the input voltage to a peak value to a predetermined voltage, without changing the signal. The working principlealso the unidirectional conductivity of the diode. What is the principle of  clamping diodes ? To understand this question, you must first understand clampping circuit. A circuit that can fix a certain part of the input and output signal waveform at a selected level is called a clamp circuit. If you want to change the clamp level, you can connect a DC potential in the circuit. If you want to clamp the bottom of the pulse, you can reverse the diode on the side. The following figure shows the input signal clamping circuit of a typical integrated operational amplifier block. The clampping diode protection circuit is consisted of two diodes in  reverse series . Only one ...

SMD resistors

  SMD Resistor  or  Chip Fixed Resistor  is one of the metal glass glaze  resistors . It is a resistor made by mixing metal powder and glass glaze powder and printing on the substrate by the screen printing method. It is resistant to humidity and high temperature with a low-temperature coefficient. SMD Resistor can greatly save the cost of circuit space and make the design more refined. SMD is the abbreviation of Surface Mounted Devices, which is a special kind of SMT (Surface Mount Technology) element device. SMD resistors are usually called chip resistors. For more information about SMD resistors, find out here

Homemade air variable capacitor

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What is an air variable capacitor? In some applications, a capacitor is required to provide a variable capacitance value. Variable capacitors are used in such cases. They allow the capacitance value to be changed repeatedly mechanically and electronically. Air variable capacitors use air as a dielectric and are composed of two sets of metal sheets, one of which is fixed and the other can be rotated. The metal plates are arranged in a network. The overlap between the two sets of metal plates can be adjusted by rotating the moving plate, and the capacitance changes accordingly. But the air gap remains the same. Application of air variable capacitor Due to its simple design and powerful functions, air variable capacitors are widely used. Its most important use is in the radiofrequency field, for example, to tune a radio by setting a resonance frequency. They are also important components of radiofrequency matching networks, magnetic resonance imaging (MRI) equipment, and precision...