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Most  LED power supply circuits are composed of a switching power supply circuit + feedback circuit. The feedback circuit samples the load and adjusts the duty cycle or frequency of the switching c...[Details]

The effective production capacity of China's paper industry has been growing continuously since 1990, especially since 1995. According to statistics, since 2000, 12 of the world's large paper machine...[Details]

The difference between inductive and non-inductive brushless DC motors What is feeling? The "sensor" in the sensed brushless motor refers to the "Hall sensor", so wh...[Details]

Today, power supply designers are faced with many challenges, not only to achieve higher energy efficiency goals, but also to meet the requirements of faster product launch. In terms of achieving h...[Details]

　　A cheap LED flashlight has appeared on the market. The front end of this flashlight has 5 to 8 high-brightness light-emitting tubes and uses 1 to 2 batteries. Due to the use of ultra-high-brightness...[Details]

PWM type switching power supply has many advantages, such as high efficiency, small size, etc. Therefore, PWM is widely used as a power supply device in many fields. However, the short duration of th...[Details]

Central topics of power modules: Packaging options for onboard power modules Power module solutions: Understanding the thermal performance of power modules from air flow d...[Details]

In-vehicle network architectures have become increasingly complex over the past decade. While the number of in-vehicle network protocols has decreased, the number of networks actually deployed has i...[Details]

Introduction: As the number of transistors integrated on a single chip exceeds 1 billion, energy consumption has gradually become the primary limiting factor in chip design. The design focus of int...[Details]

The usage time of several 3G mobile phones currently on the market is only 2 to 3.5 hours, which is not really attractive to end users. The actual talk or connection time actually depends on the quali...[Details]

When selecting an operational amplifier (op amp) to implement a specific function in a circuit , one of the most challenging selection criteria is the output current or load dri...[Details]

Photodiodes convert a fundamental physical phenomenon (light) into an electrical form (current). Design engineers systematically convert the photodetector current into a usable voltage, making the pr...[Details]

　　The dimming circuit of traditional incandescent bulbs mostly uses a simple bidirectional AC trigger triode (Triac) phase control method. Incandescent bulbs use high-temperature tungsten filaments t...[Details]

2-1-1-8. Analysis of hysteresis loss in switching power supply transformer Due to the magnetic coercive force of the transformer core, when the magnetic field generated by the excitation c...[Details]

With the development of science and technology, human beings have higher and higher requirements for power quality and power supply safety. In some important occasions, such as banks and hospitals, p...[Details]