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4 Charge Pump A charge pump, also known as a switched capacitor voltage converter, is a device that utilizes so-called "flying" or "pumping" capacitors (and DC-DC (converter) that stores energy without an inductor or transformer. 4.1 Working Principle of C
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Buck switching power supply and boost switching power supply are named according to their conversion methods. The main difference between them lies in the conversion methods of input voltage and output voltage and the different application scenarios. Specifically, their differences are mainly refle
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1 OverviewAt present, the urban rail transit DC traction power supply system uses diode rectifiers, and power can only flow in one direction from the AC grid to the DC traction grid. When the vehicle brakes, excess regenerative braking energy increases the DC grid voltage. The traditional solution i
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The magnetic flux in the primary and secondary coils of the transformer is the same. But in fact, the transmission of magnetic field is accompanied by losses, which can be roughly divided into the following situations:Eddy current lossHysteresis lossLeakage Magnetic losses1. Eddy Current LossesFarad
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1. Circuit Overview Joule Thief can drain the energy of a battery, even an old battery that is usually so-called "used up". It can also continue to exert "residual heat". Therefore, it is metaphorically compared to a thief of "joules" of electrical energy
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1. OverviewTesla Coil is a resonant transformer invented by Nikola Tesla in 1891 , used to produce ultra-high voltage, low current, and high frequency electricity. In particular, Tesla coils can produce brilliant arc effects, so thousands of electronics enthusiasts are still making them.Normally, ai
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The sine wave oscillator is a device that uses its own circuit to automatically convert DC power into AC signals of specific frequency and amplitude without the need for external signal excitation. Sine wave oscillators are widely used in various electronic devices, such as carrier signal sources in
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Is the transformer in the voltage regulator an isolation transformer? The transformer inside the voltage regulator is an isolation transformer, but it is somewhat different from ordinary isolation transformers. In this article, we will explain in detail the transformer inside the voltage regulator
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Classification of network transformers Can be divided into two categories: a. Discrete LAN Magnetics Module; b. RJ45 Connector with Integrated Magnetics, ICMs ); Products can be divided into two categories according to customer welding type: a. Surface mount components (SMT,
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Why does the primary coil of a single-ended flyback transformer need to be connected to a diode? The single-ended flyback transformer is a common circuit design that is widely used in many electronic devices. In this circuit, the primary coil needs to be connected to a diode to ensure the normal o
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When we use a bridge to test the leakage inductance of the transformer, we need to short-circuit the secondary side, and the inductance obtained by testing the primary side is the leakage inductance. Have you ever thought about why you need to short-circuit the secondary side? What is the principle
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Due to the large number of winding layers, the transformer will produce distributed capacitance. When operating at high frequency, these distributed capacitances will have a great impact on the working state of the transformer, such as EMC deterioration, transformer heating, etc. So it's important t
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