About LED electrostatic protection

In recent years, the production technology of LED display screen is becoming mature in China, and the application field is becoming widespread and popular. ...

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Thermal integrity of IC packaging and PCB design

If you are now building a professionally designed circuit experimental board, you have completed all the simulation work required before layout, and checke...

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How to make LED bulb dimmable

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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Low power is the key to the Internet of Things

introduction The proliferation of wireless sensors supporting the Internet of Things (IoT) has increased the demand for small, compact and efficient power c...

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2.1 Key points of speaker design

After actually listening to many speakers, it was found that the biggest factor affecting the sound quality of speakers is "resonance tone", which makes the...

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Questions and Answers in the Design of Switching Power Supply

How to select appropriate components and parameters for switching power supply circuit? Many engineers who have not used the design of switching power suppl...

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Three Ways for MCU to Solve Common Design Challenges of Traction Inverter for 80...

Electric vehicle (EV) traction inverter is electric vehicle. It converts the DC of high-voltage battery into multi-phase (usually three-phase) AC to drive t...

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The difference and connection between inductance and magnetic bead

The magnetic bead has a high resistivity and permeability, which is equivalent to the resistance and inductance in series, but the resistance and inductance val...

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What is the difference between DSP and MCU

1) The speed of DSP is faster than MCU, and the main frequency is higher. 2) DSP is suitable for data processing, and the instruction efficiency of data...

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Easy wearable and IoT audio with plug-and-play Class D amplifier

Power-consuming displays are not the most effective medium for interfacing with battery-powered portable, wearable and Internet of Things devices. Therefore...

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Texas Instruments boost converter and audio amplifier, power lever speaker with ...

The trolley speaker is usually a wireless speaker with a trolley and wheels, as shown in Figure 1. Because it is convenient to drag, easy to move, and can p...

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Three ways for MCU to solve the common design challenges of 800V electric vehicl...

Electric vehicle (EV) traction inverter is electric vehicle. It converts the DC of high-voltage battery into multi-phase (usually three-phase) AC to drive t...

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Ripple Reduction Technology for Stable Power Conversion

Key points of this article: • Ripple is noise on the power supply. • To provide a stable power supply, it is necessary to reduce the ripple of the out...

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The difference between triode and Mosfet tube

"Bipolar tube is a current control device (large collector current is controlled by small base current), and MOS tube is a voltage control device (source dr...

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Application of EMC Technology in Switching Power Supply

1 Generation and transmission of electromagnetic interference There are two ways to transmit electromagnetic interference: one is conductive transmissio...

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What should be paid attention to in the PCB design of DC- DC

The circuit of DC-DC is much more complex than that of LDO, with greater noise and higher requirements for layout and layout. The quality of layout directly...

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High efficiency digital audio power amplifier

Now we can‘t do without the power amplifier. What does the power amplifier chip mean in detail? Power amplifier chip means a chip with power amplification ...

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How to overcome the limitation of boost converter

A boost converter is used to generate a high output voltage from a low input voltage. This voltage conversion can be easily achieved using switching regulat...

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Necessity of Lithium Battery Protection Circuit

With the continuous progress and development of science and technology, more and more portable electronic products such as mobile phones, laptops, PDAs, dig...

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Some basic theories and explanations of EMC

1. Why should we design products for electromagnetic compatibility? Answer: Meet the functional requirements of the product, reduce the debugging time, ...

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