1. Naming method of resistor model: The model of domestic resistors consists of four parts (not applicable to sensitive resistors). The first part: the main name, expressed in letters, indicates t...
The code for the 8*8 dot matrix, this is a two-color 8*8 dot matrix, it is written in two parts in sequence. First learn to light a light, and then learn to make it display the effect of flowing water...
The above are all 8-bit addressing, but the data in DSP is obviously wrong (for example, 0x03030101, should be 0x04030201), I don’t know why, I hope the experts passing by can answer, I will be very g...
The pj 342 package has a little deviation, that is, the two positioning holes below have deviations, which needs attention!!! There is a capacitor missing in the tuning potentiometer!!! The schematic ...
Reprinted from Qianjia.com BG7JWE I believe everyone is familiar with the current power supplies that cost a few yuan or ten or twenty yuan, right? Similarly, I have also disassembled quite a few. Tod...
Why use frequency domain?
On the one hand, when we first came into contact with learning circuits and signals, we were dealing with voltages and currents that were static relative to time. For example...
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[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]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[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]
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]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[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]
1 Overview
In the field of traditional lighting, the concepts and definitions of lamps and lamps are clear. Lamps and lamps have their own applicable product standards, supporting technical st...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
In the test of the electronic ignition module, in order to simulate the real working conditions of the electronic ignition system, the electronic ignition module is often placed in an environment h...[Details]
MCU
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