Second-order RC low-pass filter design scheme

time domain and frequency domain When you view an electrical signal on an oscilloscope, you see a line that represents the change in voltage over time. At any given moment, the signal has only one voltage value. What you see on the oscilloscope is a time-domain representation of the signal. A typical oscilloscope trace display […]

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Several steps are required to build a communication prototype system

Q: Researchers, engineers and students in the communication field often need a dedicated communication prototype system to realize the cognition and experience of 4G/5G mobile communication system, understand 4G/5G core network architecture, configure 4G/5G base station and 4G / 5G terminal access and a series of practices. So, how many steps does it take to […]

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Sunlord Planar Transformer Helps Miniaturize Fast Charging Sources

Mobile terminal devices represented by mobile phones, notebook computers and tablet computers are full of aspects of life, and people are inseparable from them whether they are traveling, shopping or paying for living expenses. Mobile terminal equipment has brought convenience to life. The capacity of the battery of the equipment is constantly increasing, and the […]

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Application of N9300 music chip in smoke alarm

Smoke alarms, also known as fire smoke alarms, smoke sensors, smoke sensors, etc. It achieves fire protection by monitoring the concentration of smoke. The smoke alarm is a very important firefighting facility. When it detects that smoke is generated and reaches a certain concentration, it will activate the alarm to sound an alarm to remind […]

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Audio-enabled applications based on a simple 8-bit MCU

Audio capture and playback is becoming a requirement for many microcontroller (MCU) based applications. However, audio support is very broad in terms of fidelity and codecs. You can use a simple 8-bit MCU-based platform to host audio-enabled applications, but high-quality audio may require a digital signal controller (DSC) or a 32-bit MCU. This article will […]

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Design of Digital Inverter Power Supply Based on TMS320F2812

Authors: Wang Song, Zhao Xiangmo, Hui Fei, Wang Runmin, Zhang Jianyang Rare earth giant magnetostrictive transducer is a device that uses giant magnetostrictive material to convert electromagnetic energy into mechanical vibration. Compared with the currently widely used piezoelectric ceramic transducers, it has a wide working range, high conversion efficiency and fast response It is mainly […]

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Introduction to the basic concepts of digital audio

This article is designed to give you an understanding of the basic concepts of digital audio and the terminology associated with it. Amplitude and frequency The two most important aspects of analog audio are amplitude and frequency. Let's discuss the basic properties of sound waves and explore why different sounds are different from each other. […]

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A small surround sound decoder circuit

The figure below is a small surround sound decoder circuit. You can use this decoder surround sound system in your home sound system to make the sound system sound more "live". Parts List: How the circuit works: The operation of the circuit begins when the stereo signal transmits surround information in the main volume section […]

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Digital PFC control adds value to motor control system monitoring

Power Factor Correction (PFC) is increasingly important for industrial motor drives, mainly due to increased regulation of harmonic content on the utility side. Additional benefits include efficiency, voltage quality and conductor ratings. Digital PFC controllers are more expensive and potentially more complex than analog controllers. However, when the functionality of the main motor control processor […]

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Voltage controlled oscillator circuit based on 555

555 multivibrator and CD4017 water lamp lesson design report The water lamp is composed of 555 multivibrator and CD4017 decimal counter circuit. When the first pulse arrives, Q0 outputs high level and LED1 is on. When the second pulse arrives, Q1 outputs high level and LED2 is on,… Until Q9 outputs high level and led10 […]

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