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• "Easy to understand" Miller effect when switching MOS lamps

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  Basic principles of Miller's platform formation The gate driving process of a MOSFET can be simply understood as process of charging and discharging a drive source to input capacitance of MOSFET (basically gate-to-source capacitan...

  2023-04-16【Archive】

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• Ten Misunderstandings Often Faced by Hardware Engineers When Designing Circuit Stability

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  There is not only a lot of circuit design skill, but also a lot of misunderstandings. In this article, we will introduce you to ten misunderstandings related to circuit stability design. Myth 1: Product failure = product unreliab...

  2023-04-15【Archive】

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• Engineer Daniel tells you: The "Y Capacitor" of a switching power supply is calculated in this way.

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  Principal diagram of a switching power supply 1. Main channel: Connected directly to an external power supply. 2. Secondary circuit: Part of circuit located inside device and isolated from primary side. 3. Y-capacitor: A high v...

  2023-04-15【Archive】

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• What does color of magnetic ring mean?

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  Sustin Magnetic Ring Features of Sendust magnetic ring: lower loss than iron powder core, good DC bias current characteristics, cost between iron powder core and iron nickel molybdenum, material permeability (μ): 26, 60, 75, 90 , ...

  2023-04-14【Archive】

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• The most complete test of iron 5 processes, one less will not work

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  Hardware detection before power on When PCB is soldered, when checking whether PCB can work normally, usually do not apply power directly to PCB, but following steps are taken to make sure at each step before power on. Late. 1...

  2023-04-14【Archive】

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• Why doesn't a push-pull gate type circuit use a top P and a bottom N?

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  In signal control and driving, a push-pull scheme is often used to speed up control. A push-pull circuit can be composed of two structures: top P and bottom N and top N and bottom P. Its circuit diagram is shown below. In norm...

  2023-04-13【Archive】

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• Leaving aside calculations, in principle workflow of LLC

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  OOO technology has been popularized, and it won't go unnoticed anymore! Basic principle of LLC half-bridge resonant circuit T1~T2: T2~T3: T3~T4: T4~T5: T5~T6:...

  2023-04-13【Archive】

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• TVS choice, this experience is comfortable

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  When it comes to TVS, most electronics engineers basically know that it is used to protect a port, to prevent damage to downstream circuit by a momentary port surge. However, due to its extremely important position in circuit for ...

  2023-04-12【Archive】

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• Analysis of damping RC circuit of a switching power supply "haberdashery"

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  01 Problem Background In our widely used AC/DC switching power supply, instantaneous reverse pulse generated on secondary coil due to leakage inductance of primary coil is very serious. As shown in Figure 1, this is an AC/DC circu...

  2023-04-12【Archive】

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• Four leg inductor? Did you see it?

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  Our conventional inductors have two legs called differential inductors. Today I will introduce a common mode inductor with four legs. Differential mode current and common mode current Differential current: On a pair of differenti...

  2023-04-11【Archive】

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