How to choose a suitable operational amplifier chip ChipSourceTek

One of the most important functions of electronic circuits is amplification. Without amplification, many other specific circuits will not work. For example,...

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Common mode rejection ratio of operational amplifier

Common mode rejection ratio (CMRR) is the most important specification parameter, which represents the common mode signal to be measured. The value of CMMR ...

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Simple solution for differential input single ended output amplifier

Many applications require the use of low-power, high-performance differential amplifiers to convert small differential signals into readable ground referenc...

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Design of a switching power supply circuit against lightning surge

With the development of urban economy, the harm caused by inductive lightning and lightning wave has increased greatly. The lightning rod on the general bui...

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Pain points in different stages of direct power supply design

In the global environment of energy conservation and environmental protection and the renovation of intelligent Internet terminals, energy conservation, hig...

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Mobile phone fast charging protocol (large market)

The charging speed of mobile phones has developed rapidly, from 18 w to 25 W, later to 40 W, 50 W, 65 W, and now to the latest 120 W and 140 W. it is a gimm...

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Main types and working principles of push-pull amplifier

When the demand for long-distance audio communication increases, it is necessary to increase the amplitude of electrical signals in order to transmit them o...

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Comparison test between TC8002D and CST8002D

测试条件：供电电压5V 负载阻抗4欧姆 采用同一测试PCB板测试 测试设备：音频分析仪ATS-2 直流稳压源PS305 水泥电阻4欧 万用表 示波器 测试人员：张志明 5V下万用表测...

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Comparison test between CST8002D and HAA8002D

测试条件：供电电压5V 负载阻抗4欧姆 采用同一测试PCB板测试 测试设备：音频分析仪ATS-2 直流稳压源PS305 水泥电阻4欧 万用表 示波器 测试人员：张志明 5V下万用...

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11 misconceptions about USB-C and PD

1. USB type-C and PD are very complex When using a universal connector that can be plugged into a power supply or device, negotiating which device powers w...

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Introduction of virtual grounding and virtual short circuit in operational ampli...

Operational amplifier is the main force of analog electronic design. Since ancient times, these humble devices have been used for everything from simple vol...

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These problems should be considered when adjusting the switching frequency

The switching mode power supply adopts fixed, adjustable or synchronous frequency with external clock for switching. The switching frequency value determine...

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How to choose the right power chip

What is a power chip? What does it do? What should be considered when selecting a power chip? The linear adjustment rate of input voltage and the relative i...

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How much does the power noise affect the phase noise of high-speed DAC and how t...

Among all device characteristics, noise may be a particularly challenging and difficult design topic. This paper mainly introduces the influence of power su...

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Advantages and disadvantages of class D power amplifier IC

Advantages of class D power amplifier IC 1. Class D power amplifier has a high energy conversion rate, and it is small in size and has strong reliability. T...

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How to effectively suppress the ripple of switching power supply to meet the req...

One of the key indicators of switching regulated power supply is ripple, which is mainly caused by switching mode, and the existence of ripple will affect t...

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PCB layout in DC-DC chip application design

In the application design of DC-DC chip, whether the PCB layout is reasonable or not has a vital impact on whether the chip can show its optimal performance...

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Five test points to understand the efficiency and performance of motor driver

According to the data of the US Department of energy (DOE), the motor system is critical to the operation of almost all plants, accounting for 60% to 70% of...

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Precautions for heat dissipation of class D amplifier

When evaluating the performance of class D amplifier in the laboratory, continuous sine wave is often used as the signal source. Although it is convenient t...

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Proprietary 2.4GHz wireless audio design

Although engineers often consider the microcontroller (MCU) from the perspective of integrating the peripherals required for the application at hand, in man...

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