Optimize EMC and efficiency of high-power dc/dc converters - Part 2

In the first part, we explained how to choose the correct capacitor type, power inductor, switching frequency and semiconductor, which are important to the ...

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EMC and efficiency optimization of high power dc/dc converter

Choosing the appropriate capacitor technology, storage inductance, switching frequency and semiconductor - compared with other factors - is very important t...

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Simple skills of LED dimming scheme

Over the years, manufacturers have continuously introduced LED lamps to the market, with the ultimate goal of replacing incandescent lamps and compact fluor...

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Explain in detail the connection between power amplifier and horn and relevant c...

First of all, there are two types of power amplifier output: constant voltage type and constant resistance type. Constant voltage power amplifier and consta...

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The booster charging pump with brand-new structure, want to know

Charging pump (non inductive) dc/dc converter is popular in space limited applications. It must be powered by low to medium load current. This kind of conve...

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High speed circuit of PCB design

In my work, I often encounter people asking what is a high-speed circuit, or what to pay attention to when designing a high-speed circuit. Whenever you en...

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Voltage and current feedback amplifier application circuit

The structure of voltage and current feedback amplifier application circuit is generally the same, except for several key points. The current feedback a...

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Difference between decoupling capacitance and bypass capacitance

Bypass capacitance is not a theoretical concept, but a frequently used practical method. In the 1950s and 1960s, the word has its own meaning, and is not us...

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Class D amplifier design challenges for optimal audio performance

Class D amplifier has gradually become the preferred topology for high-end household a/v devices and mobile devices, which can help designers realize the co...

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A simple method to completely eliminate the interference of wave noise in radio

Now the medium wave receiving environment is getting worse and worse. Ordinary semiconductor radios are used to receive medium waves indoors in cities, and ...

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Several effective EMI suppression methods of switching power supply

At present, many universities and scientific research institutions have carried out research on switching power supply EMI (electronic interference). Some o...

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How to deal with the problem that digital power amplifier interferes with FM rad...

Q: in the process of using class D power amplifier, it is always difficult to deal with its interference to FM radio, which causes that products using class...

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How to solve the pop sound of audio switch

There are three common situations of pop sound when power on (1) Vdd and en are connected and powered on. At this time, the pop tone caused by instability i...

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Replacement principle and good or bad judgment of FET

1、 Qualitatively judge the quality of MOS FET Use multimeter r first × 10K Ω gear (built-in 9V or 15V battery), connect the negative probe (black) to the g...

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How to design overvoltage protection circuit

A simple overvoltage protection circuit can generally be realized by adding TVs. When there is an instantaneous high-energy impact outside, it can suppress ...

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How to realize high quality audio in portable multimedia system

In the current portable multimedia devices with centralized functions, more and more functions are being integrated into smaller and smaller systems. Audio ...

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Design and implementation of narrow pulse small signal operational amplifier cir...

Abstract: This paper designs and implements a narrow pulse small signal operational amplifier circuit. At the beginning of the article, it first introduces ...

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Design of DC regulated power supply

Stabilized voltage supply is the English name of regulated power supply, which is an electronic device that can provide stable AC power supply or DC power s...

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Influence of water on capacitive touch screen and waterproof strategy in design

1、 Introduction Waterproof performance is a landmark index to measure the design performance of multi-point capacitive touch screen. It seems that the mult...

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Design of off-line switching power supply

The off-line switching power supply usually uses rectifier bridge and input filter capacitor to absorb energy from the input, and the large capacitor is cha...

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