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The role of large AC voltage regulators

Oct , 19 2023

Current stabilized power supply (large AC voltage stabilizer) There are many types of regulated power sources, whose function is to filter the mains electricity; The voltage required to stabilize various electrical appliances and circuits is called a regulated power supply. The definition of a regulated power supply is an electronic device that can provide stable AC or DC power to a load, includin...

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The working principle and control method of IGBT voltage modification method

Nov , 03 2023

Unlike the resistance method, the voltage method involves changing the driving voltage during the control phase to control voltage and current overshoot. There are approximately two methods to change the driving voltage. One is to achieve the change by dividing the driving voltage through a resistor, and the other is to change the output signal in the control chip (DSPFPGA), and then convert it in...

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Comparison of advantages and disadvantages of various energy storage systems

Nov , 16 2023

Comparison of advantages and disadvantages of various energy storage systems 1, mechanical energy storage Mechanical energy storage mainly includes pumped storage, compressed air energy storage and flywheel energy storage. (1) Pumped storage: when the grid trough the use of excess electricity as liquid energy media water from the low-lying reservoir to the high-lying reservoir, the grid peak load ...

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Principle of overvoltage and undervoltage

Jan , 13 2024

The overvoltage and undervoltage protector is installed in the distribution box. Its main function is to cut off the power supply in a timely manner when the low-voltage distribution line or electrical equipment malfunctions, causing an increase or decrease in the voltage of the distribution system, thereby avoiding losses to components or distribution systems. This article mainly introduces the w...

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Lead-acid battery failure model

May , 11 2024

The most common failure modes are: - Softening or shedding of the active material. During discharge the lead oxide (PbO2) of the positive plate is transformed into lead sulfate (PbSO4), and back to lead oxide during charging. Frequent cycling will reduce cohesion of the positive plate material due to the higher volume of lead sulfate compared to lead oxide. Corrosion...

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Methods for reducing ripple voltage

Jun , 06 2024

Brief introduction Ripple voltage is a voltage fluctuation in the output of a DC power supply, referring to the AC component of the output voltage. Excessive ripple voltage can have an impact on the normal operation of electronic devices, so reducing ripple voltage is an important issue that needs to be addressed in the power supply design process. This article will introduce some commonly used me...

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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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The characteristics and principle analysis of internal resistance of lithium battery

Jul , 12 2024

The internal resistance of the battery is one of the most important characteristic parameters of the battery, which is an important parameter to characterize the battery life and the operating state of the battery, and an important symbol to measure the difficulty of the transmission of electrons and ions in the electrode. The internal resistance also reflects the health of the battery. The intern...

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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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Voltage drop calculation formula

Jul , 19 2024

Voltage drop is a common issue in circuits. To calculate the decrease in voltage, we can use the following formula: Vout=Virn * (R2/(R1+R2)). This formula is based on the principle of resistance voltage division, where Vin represents the input voltage, Vout represents the output voltage, R1 represents the resistance value of the upper resistor, and R2 represents the resistance value of the lower r...

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