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The function of dynamic voltage regulation (DVS)
A voltage regulator is generally used to generate a constant output voltage. With the control loop, a stable and accurate output voltage can be generated th...
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Design key of fast and stable audio test platform
Nowadays, almost every personal electronic device has integrated audio function. No matter in busy urban streets or rural areas, people of different ages ca...
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Countermeasure of power inductor howling
The following is a summary of the countermeasures against the howling of the power inductor of the DC-DC converter. Key 1: avoid audible frequency current flowi...
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Concept, characteristics and architecture classification of DC-DC
DC-DC refers to direct current power supply. It is a device that converts electric energy of one voltage value into electric energy of another voltage value...
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Common inter IC digital interface for audio data transmission
First understand the advantages and disadvantages of different interfaces and then select components, which is conducive to more reasonable selection of com...
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Determine the key components of automotive DC-DC converter
In the broad field of automotive electronics, the power system plays a vital role, especially in the vehicles equipped with start stop system. The system is...
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True wireless stereo TWS headset charging base
In recent years, TWS (true wireless stereo) technology has been widely used in the field of Bluetooth earphones. The TWS Bluetooth earphones combined with t...
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Several important knowledge points you need to know about mixed signal grounding
1. Source of confusion of mixed signal grounding Most ADC, DAC, and other mixed signal device data manuals discuss grounding for a single PCB, usually the manu...
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System power supply design problems
For an electronic system, the design of power supply is becoming more and more important. I would like to discuss with you some of my own experiences on pow...
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How to suppress the output ripple of switching power supply
In the switching power supply, the superposition of AC ripple in the stable DC signal is usually a problem that engineers worry about. So how can we reduce ...
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A simple design method for battery power measurement
Using portable electronic products, we hope to know the remaining power of the battery and the continuous working time at any time, and adjust relevant appl...
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Precautions related to circuit board wiring layout
Since the pin assignment of the to-247-4l package with driver source pins and the to-247n package without driver source pins are different, attention should...
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Three important laws of electromagnetic compatibility
Law 1. The law of EMC cost-benefit ratio: the sooner EMC problems are considered and solved, the lower the cost and the better the effect. EMC design in the...
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Classification and comparison of seven types of current sensors
1. Resistance shunt detection technology The shunt is measured according to the voltage generated at the end of resistance 2 when the current passes throug...
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How EMI interferes with circuits through media
Electromagnetic interference (EMI) is a part of our life. With the passage of time, a large number of intentional and unintentional EMI radiation sources wi...
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Understand the differences between USB pd2.0, 3.0 and 3.1 in one article
Recently, the usb-if Association released the latest USB pd3.1 fast charging standard. The charging power was increased from the original 100W to 240W, and the ...
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What factors should be considered when selecting internal AC-DC power supply
A very common demand is to choose an internal AC-DC power supply for the final product, with a power range of several watts to hundreds of watts. At the low...
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Level conversion application of digital isolation chip
With the advent of industry 4.0, digital interconnection has become more and more common. In the interconnection of digital circuits, the interface level mi...
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PCB design skills of dry goods EMC
Electromagnetic compatibility (EMC) and associated electromagnetic interference (EMI) have always required system design engineers to sharpen their eyes. No...
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A method of heat dissipation management for High Power PCB
The entire power electronics industry, including RF applications and systems involving high-speed signals, is moving towards solutions that provide more an...
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