I want to use PIC16F877A programming to complete such a "thing"-----there are two or three (connected to the port) voltage input {Ua, Ua+Ub, Ub, Ub+Uc, Uc, Uc+Ua, Ua, Ua+Ub.......) cycles. The duratio...
I want to make a power indication circuit, which requires an alarm function when any one or more circuits are broken. The six power supplies are +5v, +15v, +12v, +130v, +15v, -15v. Thank you all!...
This title may sound a bit ridiculous. However, there is a story behind it. As someone who often struggles with many problems that most people don't struggle with, this problem is definitely inevitabl...
Come~~Teach you how to estimate the price of PCB boards. The price estimation of PCB boards is divided into two parts: 1. Various factors that affect the price of a PCB board; 2. Quotations for variou...
There are a few questions that I don't quite understand. 1: I read part of the code of an operating system (including drivers) and found that there are directories called bsp and driver. These two dir...
Can we consider adding a submodule of the CD center to allow everyone to upload some related CD materials, such as the CD supporting TMS570, the CD of eZ430, etc. Because the CD resources are relative...
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
1 Introduction
With the rapid economic development, my country's electricity demand has been growing at a rate of more than 20% per year. According to the current economic development trend an...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]