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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
測試條件：供電電壓5V 負(fù)載阻抗4歐姆 采用同一測試PCB板測試 測試設(shè)備：音頻分析儀ATS-2 直流穩(wěn)壓源PS305 水泥電阻4歐 萬用表 示波器 測試人員：張志明 5V下萬用表測...
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Comparison test between CST8002D and HAA8002D
測試條件：供電電壓5V 負(fù)載阻抗4歐姆 采用同一測試PCB板測試 測試設(shè)備：音頻分析儀ATS-2 直流穩(wěn)壓源PS305 水泥電阻4歐 萬用表 示波器 測試人員：張志明 5V下萬用...
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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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