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  • What are Harmonics

    What are Harmonics

    Aug , 17 2024
    1. Definition of harmonics In the AC power grid, due to the operation of many nonlinear electrical equipment, the voltage and current waveforms are actually not complete sine waveforms, but non-sine waves with different degrees of distortion. Harmonic refers to the amount of electricity contained in the current whose frequency is an integer multiple of the fundamental wave, and generally refers to...
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  • The working principle of thyristor

    The working principle of thyristor

    Aug , 07 2024
    As is well known, resistors are ubiquitous in daily life. We can use resistors to turn on and off small currents, and convert small currents into larger ones. But when dealing with larger currents, they are not very effective, and there is also a disadvantage that once the switch current is removed, they cannot work, which means they are not as useful in devices such as alarms. Thyristor, also kno...
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  • The way the thyristor rectifies

    The way the thyristor rectifies

    Aug , 07 2024
    A Thyristor rectifier is a power electronic device that is widely used in the conversion process from alternating current to direct current. It achieves a unidirectional flow of current by controlling the turn-on and cut-off of the thyristor, which converts alternating current into direct current. Thyristor rectifiers are characterized by high efficiency, reliability and fast response. How thyrist...
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  • Wiring Method of Transformer

    Wiring Method of Transformer

    Jul , 26 2024
    1.Wiring Method Of Transformer： There are two types of common transformer windings, namely "triangle wiring" and "star wiring"; In the connection group of the transformer, "D" is represented by a triangle, "Yn" is a star with a neutral wire, Y is a star, and n is a neutral wire.  The combination of the two windings of the transformer forms four types of wiring groups: "Y,y,"D,y", "Y,d" and "D...
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  • The role of voltage transmitters

    The role of voltage transmitters

    Jul , 19 2024
    A voltage transmitter is a device used to convert an analog electrical signal generated by a sensor into a standard voltage or current signal output. It is widely used in the field of industrial automation and process control, and is also used to measure and monitor environmental parameters such as temperature, pressure, liquid level, etc. 1. What is a voltage transmitter Voltage Transmitter, abbr...
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  • What is the meaning of float charging for intelligent three‐stage charger in battery charger?

    What is the meaning of float charging for intelligent three‐stage charger in battery charger?

    Jul , 12 2024
    Float charging: Keep constant voltage charging, the charging current continues to decrease, and the battery is charged with maintenance type. When the charging current decreases to the set value or the charging time reaches the set value, the red light of sufficiency will be on, and the time will be about 2H, charging 10% of the power. Ordinary chargers are old‐fashioned chargers, charging, whethe...
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  • Advantages and disadvantages of constant voltage and current power supply

    Advantages and disadvantages of constant voltage and current power supply

    Jul , 06 2024
    The advantages of constant voltage and current power supply include flexibility, stability, protection function, adjustability, and high efficiency, while the disadvantages mainly include high cost, large volume, thermal management requirements, and response time. 1. Advantages: a. Flexibility: A constant voltage and current power supply can provide stable current or voltage output as needed, suit...
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  • Differences in communication serial ports

    Differences in communication serial ports

    Jun , 22 2024
    RS-232 and RS-485 are two common serial communication standards, with the following main differences between them: Different transmission methods: RS-232 adopts a single end transmission method, and its data signal is relative to the signal ground, usually used for point-to-point communication; RS-485 adopts differential transmission mode, allowing multiple transceivers to be connected on the bus,...
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  • A brief introduction to EMI

    A brief introduction to EMI

    Jun , 14 2024
    What is an active power filter Active Power Filter (APF) is a new type of power electronic device used to dynamically suppress harmonics and compensate reactive power, which can compensate for harmonics and reactive power changes in magnitude and frequency. The reason why the active filter is called active, as the name suggests, the device needs to provide a power supply (to compensate for the har...
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