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Is the leakage inductance of the switching power supply transformer included in the total inductance? How to measure the leakage inductance and inductance value of a transformer? Regarding the leakage inductance of switching power supply transformer, we need to first clarify some basic concepts. W
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The various electrical appliances we encounter in our daily lives, such as the most common digital cameras, mobile phones, video cameras, printers, etc., all use controllable rectified power circuits, so this Circuits are very popular and are the first thing everyone should master when learning circ
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In power supply design, we often hear the word leakage inductance. So what is leakage inductance and what impact does it have on the power supply?1. What is leakage inductance?In a transformer or coupled inductor, it is generated by the primary winding and cannot be coupled to Part of the magnetic f
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Overvoltage protection. The power supply provides stable power to external devices. Each device will have a maximum allowable voltage during normal operation. When the voltage provided is too high, the device will be damaged within a certain period of time, so power supply overvoltage protection is
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Today I want to write this article to share a knowledge point I learned some time ago - the derating curve of the power module.Why write this? For students who specialize in power supply, it must be very simple. But for someone who is not in the power supply industry, it may not be completely clear
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1. EMC characteristics of FLYBACK The voltage oscillation peaks and current oscillation peaks formed by the switching power tube of FLYBACK (flyback converter) at the turn-on and turn-off moments are the main sources of interference in switching power supplies. , plays a decisive role
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Suppression Measures for Differential Mode Conducted Emission of Switching Power SupplyThe solution to the differential mode conducted emission of switching power supply from the source is to reduce the spectrum envelope of the switching current, thereby reducing noise. each frequency component of t
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As can be seen from the above figure, the switching power supply is in the process of turning on and off the MOS tube. , the voltage of the primary side of the transformer and the part of the wire connecting the primary side of the transformer to the drain of the MOS tube is changing rapidly. This l
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With the development and innovation of power electronics technology, AC/DC switching power supplies have basically replaced linear power supplies and are developing in the direction of small, lightweight and efficient. At present, switching power supply is an indispensable and key part of the rapid
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Switching power supply chip U62133 rekindles the "core" hope 01 Huawei's latest flagship Mate 60 Pro launched in a low-key manner The sale shocked the world. This flagship phone is the world's first mass-market smartphone to support satellite calls. It can make and receive satellite calls even if t
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Almost 9°% of the electrical energy we use in daily life comes from AC energy. Be it our home appliances, office equipment or industrial machines, we all use AC power to power these devices. If you are a beginner, alternating current or simply alternating current is a type of electricity in which t
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Power supply is one of the core parts of the entire circuit. A circuit must be supported by a complete power supply system to function. Especially in complex projects, multiple power systems are often involved at the same time. Each power system involves startup sequence, coupling, power inte
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