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Shenzhen KINRI Energy Technology Co.,Ltd.

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· What are the application areas of switching power supplies?

Switching power supply is a type of power supply that utilizes modern power electronics technology to control the time ratio of switching on and off, and maintain a stable output voltage. Switching power supplies are generally composed of pulse width modulation (PWM) control ICs and MOSFETs.480W Din Rail Switching Power SupplyAt present, switching power supplies are widely used in almost all electronic devices due to their small size, lightweight, and high efficiency, and are an indispensable power supply method for the rapid development of the electronic information industry today. The application range of switch mode power supply is extremely wide, involving almost all electronic devices that require electricity. The following are the main application areas:1. Computer fieldIn the field of computer science, switching power supplies are indispensable power supply devices. Both desktop and laptop computers require a stable power supply to ensure their normal operation. Switching power...
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05-25
2024
· Characteristics, Applications, and Selection of Linear Transformers

A linear transformer is an electronic component that operates based on the law of electromagnetic induction and the characteristics of magnetic materials. It consists of primary and secondary coils as well as an iron core, which changes the voltage or current in the secondary coil by changing the current in the primary coil. Linear transformers play a role in voltage conversion, current conversion, impedance conversion, and phase conversion in circuits, and are widely used in audio equipment, communication equipment, measurement instruments, and other fields.linear transformerThe main characteristics of linear transformers include:1. High efficiency: Linear transformers do not generate additional power consumption and noise when converting voltage or current like switching power supplies, so their efficiency is very high, usually reaching over 90%.2. Pure output voltage: Due to the lack of switching action during operation, linear transformers do not generate additional harmonic compo...
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05-25
2024
· Selection and Use of UK standard Power Supplies

The UK standard power outlet is a UK standard power outlet, which has certain differences from the power outlets in China. In the UK, there are three specifications of power sockets used by people, namely I II. Type III. Among them, Type I is the most common specification, with a three pin plug consisting of a ground wire, neutral wire, and live wire above, and a switch and fuse below. Type II and III sockets are two pin plugs and circular plugs, respectively.UK standard 5W MODEM POWER ADAPORWhen using UK standard power supplies, the following points should be noted:Firstly, it is important to understand the specifications of UK standard power supplies and the shape of plugs to avoid damage or fire caused by incorrect insertion. When purchasing UK standard power adapters or converters, be sure to choose plugs and sockets that comply with UK standards.Secondly, when selecting a UK standard power adapter or converter, attention should be paid to its voltage and current parameters to ens...
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05-25
2024
· The role of switching power supply inductance

The basic composition of switch mode power supplySwitching power supply is a high-efficiency power supply, which consists of input filtering capacitors, rectifier bridges, intermediate capacitor filtering Composed of PWM modulator, output stage, and feedback control circuit. Among them, The control signal of the PWM modulator is isolated through a high-frequency transformer, and the feedback control circuit further controls the PWM duty cycle by comparing the difference between the output voltage and the set value, achieving the stability of the power output voltage.Inductance of high-power switching power supplyThe role of switching power supply inductance1. Filter power supply noiseIn switching power supplies, inductance is mainly used to filter out noise in the power supply, including high-frequency noise and low-frequency noise. In switch mode power supplies, high-frequency noise mainly comes from PWM modulators, while low-frequency noise mainly comes from output loads and rectifi...
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05-24
2024
· Advantages of AC-DC Switching Power Adapters

Generally speaking, the commonly used low-voltage AC switching power adapter rectifies 220VAC electricity directly into an AC voltage of around 300V after passing through an EMI filter. The circuit controls the switching tube for high-speed conduction and cutoff, and then converts it into high-frequency AC electricity to supply to the transformer for voltage transformation. This generates one or more sets of voltage required, which is then rectified into the required voltage of AC electricity.Switching Power AdapterThe AC-DC switching power adapter chip (or module) can be made into a basic switching power adapter by combining some resistive and capacitive components and a switching transformer.The main working principle of a regular half bridge switching power adapter is that the switching tubes of the upper and lower bridges (VMOS when the frequency is high) take turns conducting. First, the current flows into the upper bridge switching tubes, and using the storage function of t...
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05-24
2024

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