I use CD4046 and CD4040 (256 frequency division) to phase lock the grid frequency of 50Hz, but I can't adjust it. I don't know the following frequencies:
f0: center frequency = 50Hz*256=12.8kHz? ? 2fc...
Hello everyone, I would like to ask which function can be used to obtain the coordinate position of the mouse? It would be best if you can give a concise example. I hope you can give me some advice....
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[i=s] This post was last edited by Wu Jianying on 2014-6-18 09:57 [/i] [align=center][b]Wu Jianying's Digital Oscilloscope User's Guide (Take DS-1000 Series as an Example) [/b][/align] [align=left][fo...
I seem to have read a lot of books and searched on Google for a long time about this function, but there is almost no usage of this function. I just know: "r_write() writes data to the file descriptor...
The driver of wince sd is controlled by the SD host controller, one port is connected to the SD card (the source code is already available), and the other port is connected to movinand. How to write t...
A parallel inverter consists of two thyristors (T1 and T2), a capacitor, a center-tapped transformer, and an inductor. The thyristors provide a current path, while the inductor L maintains a consta...[Details]
In recent years, many people have switched to new energy vehicles, and this type of vehicle has indeed been highly sought after and is considered the future direction of automobile development, and...[Details]
1. Introduction
Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[Details]
According to Nikkei, Japan has performed poorly in responding to China's power semiconductor challenges.
There are five major companies in Japan's power chip market: Mitsubishi Electric,...[Details]
The difference between a series inverter and a parallel inverter is that they use different oscillation circuits. A series inverter connects L, R, and C in series, while a parallel inverter connect...[Details]
Wearable technology is taking off, with applications evolving rapidly, from smartwatches to fitness trackers and even smart wigs! Bluetooth Smart is at the center of this revolution. This is the se...[Details]
The composition of the water heater
The water heater itself is divided into the following parts:
1. Water tank.
This is where the water heater is filled with water and where the wate...[Details]
The Waveshare ESP32-P4-ETH is a compact ESP32-P4 development board with Ethernet and PoE support. It looks very similar to the Olimex ESP32-P4-DevKit, minus the pUEXT connector. However, we've also...[Details]
The drive shaft is the shaft in a universal joint that transmits power. As a high-speed, low-support rotating body, its dynamic balance is crucial. Generally, drive shafts undergo dynamic balancing...[Details]
Generally not, but there are exceptions. For example, a torque motor controller with three-phase output voltage imbalance can cause current imbalance, similar to a phase loss. However, only two pha...[Details]
Let’s first take a look at the development concept of the EVD series.
The EVD control module is specially developed for operation in extreme environments. Components that meet these requiremen...[Details]
While aberration theory is a vast subject, a basic understanding of some fundamental concepts can make it easier to understand: spherical aberration, astigmatism, field curvature, and chromatic abe...[Details]
The number of new energy vehicles in use is increasing, and there are multiple choices available. New energy vehicles can be divided into hybrid and pure electric, and the types of hybrid include m...[Details]
We often notice that some safety light curtains have EDM function. What does EDM mean here? What is its function?
The full name of EDM is External Device Monitor, which means external device m...[Details]
This article describes how to achieve constant-pressure water supply through PID control using an Allen-Bradley PLC-5 processor in conjunction with a SAMI STAR inverter. To ensure safe and reliable...[Details]