This article introduces the non-ideal behavior of high-frequency inductors and helps you select the right capacitors and inductors for applications such as matching networks, DC blocks, crystals, and ...
The design is relatively simple. The mobile phone is connected to the microcontroller via UART. The PWM can adjust the speed arbitrarily. Pay attention to the driving voltage of the fan.#include msp43...
There is no specific circuit mentioned, but I just studied the parameters of the diode and found that the power dissipation parameter seems to be around 1W. Assuming a reverse connection protection ci...
If you like playing guitar, but you are not very familiar with music theory or memorizing chords, Tabstrummer can solve your concerns. Recently, a foreign enthusiast designed a "guitar" Tabstrum...[Details]
LED lighting has many advantages that traditional light sources cannot match and has a broad market prospect. However, a series of problems such
as poor reliability, lack of relevant standa...[Details]
0 Introduction
The galvanometer scanning laser marking technology is to change the propagation direction of the laser by controlling the deflection angle of two high-speed galvanometers, and ...[Details]
WeChat introduction : 100 % domestic materials, fully covered by Allwinner T series "Love technology and be willing to share", the "Hardware Developer Conference" organized by Hardware 100...[Details]
1. Introduction
HART, which stands for Highway Addressable Remote Transducer, is the abbreviation of Highway of Addressable Remote Sensors. It was first developed by Rosemount Corporation...[Details]
I learned about dot matrix display a few days ago, and today I would like to summarize it according to my own ideas. First, let me introduce the display principle of the dot matrix. The circuit dia...[Details]
The principle of this circuit simulation is: according to the programming on Puzhong Technology (exactly the same), but it cannot be simulated when using proteus7.8. After a period of thinking, the e...[Details]
12864+DS1302 +DS18B20 large character clock for everyone to learn. Electronic smart clock program Microcontroller: STC89C52RC Crystal oscillator: 12MHz Clock chip: DS1302 LCD screen: LCM-12864-S...[Details]
Used in negative feedback AGC circuit
The circuit of diode for negative feedback AGC is shown in the figure. In general radio, the emitter resistor of the tube is connected with a fixed capacitor. ...[Details]
Power on delay timer
The circuit uses an integrated circuit to count the AC main pulse to produce 16 different delays. Once the set time interval has passed, the power is added to the load, whic...[Details]
Code Experiment Operated Oscillator Using Optical Isolator
The open-dip isolator (A) is actually a closed isolator with a gap. It is used to block the light path. Therefore, it can be used to fo...[Details]
Business Challenges
The digital construction of a hospital is a large and complex system project. The overall system is composed of hundreds of business subsystems, and there is frequent data ...[Details]
On July 30, Huawei announced its first half 2019 results, with sales revenue of 401.3 billion yuan in the first half of the year, a year-on-year increase of 23.2%. The profit margin was 8.7%. Among t...[Details]
Excellent circuit design is the fundamental way to produce beautiful sound, which is well reflected in imported amplifiers. The circuit introduced in this article was first seen in some imported ...[Details]
From October 16 to 17, Shandong Provincial Party Committee Secretary Lin Wu emphasized during his research in Yantai that we must thoroughly study and implement General Secretary Xi Jinping’s importan...[Details]
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