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Introduction to High-Frequency Switching Power Supplies (Part 1)
Introduction to High-Frequency Switching Power Supply Products Guangzhou Puri Electric's NHWY series high-frequency switching power supplies use PWM high-frequency technology. The output voltage and current are continuously adjustable from zero to the rated value, and the panel has an LED digital tube display. The internal IGBT rectifier module uses imported Infineon components, and other components also use well-known domestic and foreign manufacturers to ensure the high stability of the power supply. The control board parameters are digital and drift-free, ensuring stable and reliable operation.
03
2020
Introduction to high-frequency electroplating power supplies
High-frequency electroplating power supplies generate low-voltage, high-current output through a process of inputting high-voltage AC rectification, high-voltage filtering, high-voltage high-frequency regulation, and low-voltage high-frequency rectification.
03
2020
How to use a pulsed electroplating power supply
With the development of surface treatment industry products towards high quality and high performance, and with the increasing demand for plating quality from the electronics industry, pulse plating technology has emerged and rapidly developed.
02
2020
Puri Electric: A Brief Discussion on High-Frequency Switching Power Supplies
High-frequency switching power supply, also known as switching power supply, switching converter, and switching rectifier SMR, is a high-frequency electric energy conversion device. Its function is to convert a voltage level into the voltage or current required by the user through different forms of architecture. It mainly achieves high efficiency and miniaturization through the high-frequency operation of MOSFET or IGBT, and the switching frequency is generally controlled within the range of 50-100kHz.
12
2019
Basic Concept for Promoting Electricity Price Reform
Electricity price reform (electricity price policy) plays an important and irreplaceable role in promoting the development of the power industry. This is reflected in: firstly, guiding power investment and consumption; secondly, promoting production and ensuring supply; thirdly, regulating the relationship between supply and demand; fourthly, optimizing resource allocation; fifthly, adjusting interest relationships; sixthly, promoting the marketization reform of the power industry; and seventhly, serving as an important tool for macroeconomic regulation.
10
2019
Whether or not to manufacture wind turbine units
China's wind turbine manufacturing industry once enjoyed great success, but now faces difficulties, with most companies suffering losses. The market's irregularities, unfairness, excessive low-price competition, and blind expansion of production capacity are caused by many factors, but equipment manufacturers themselves should also strengthen self-discipline; otherwise, it will be detrimental to the sustainable and healthy development of wind power.
10
2019
Analysis of the Development Trend of High and Low Voltage Complete Electrical Equipment
Since the reform and opening up, China's electrical appliance industry has developed rapidly in the context of rapid economic growth. The annual increase in installed power generation capacity has exceeded 8%, and it is expected to reach 800 million kW by 2020.
10
2019
The press conference revealed that the "State Grid Corporation's Opinions on Doing a Good Job in the Grid-Connection Service of Distributed Power Sources" (16 articles) will be officially implemented on March 1, 2013. All units within the State Grid Corporation system will strictly abide by customer service discipline and proactively accept government supervision and social oversight.
10
2019
China's first high-power IGBT chip has passed appraisal
Now, each carriage of a high-speed train can have its own power. To ensure that the power of each carriage works together harmoniously and is easily controlled, a high-power chip is required. Previously, China was largely dependent on imports for this type of high-end chip. High-power IGBT (Insulated Gate Bipolar Transistor) chips manufactured in Shanghai have passed expert appraisal. This first domestically designed and manufactured "China core" not only marks the beginning of replacing imports but will also create tens of billions of yuan in annual output value in fields such as rail transit, power systems, green energy, and electric vehicles.
10
2019
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