Founded in 1981, Guanxi Electronics is a professional manufacturer of relays and optocouplers. Its main business operations include the production and sales of the following four categories of products: reed relays, solid-state relays, optocouplers, and electric relays.
Our company makes testing machines, and I am the only one doing RD.
Now we are faced with another problem.
A pressure maintenance problem
The testing machine presses a material through a cylinder
Keep...
Testing a battery-powered product, there is a 26K resistor between the two ends of the battery pad (no battery is soldered at this time!), what is the internal resistance of the board power supply cir...
Dear experts:
When I was debugging the CLA program of 28377D, I encountered a problem that I have not been able to solve. I hope the experts can give me some advice. Thank you very much!
My CLA is tri...
Since the Hall effect was discovered more than 100 years ago, its application has gone through three stages:
The first stage is from the discovery of the Hall effect to the early 1940s. Initially, due...
Abstract: Remember before 2010, there were still big differences in the models of USB data cables of various mobile phone brands, so the data cables of different mobile phone manufacturers were not un...
The Battleship STM32 development board and four multimeters of the Atom on Time This content is originally created by firstain, a netizen of EEWORLD forum . If you need to reprint or use it for commer...
1. Introduction
LED applications have expanded to various fields, including LCD backlight, mobile phone backlight, signal lights, artistic lighting, architectural lighting, stage lighting cont...[Details]
In this Power Design Tip and the next one, we will look at a simple method for estimating the temperature rise of a hot-swap MOSFET. Hot-swap circuits are used to limit the inrush current when a c...[Details]
The main circuit of the traditional three-phase Buck rectifier is shown in Figure 1. Six switches are combined into a full-bridge rectifier circuit. This circuit is different from the three-phase C...[Details]
Power Integrations launches gate driver with fast short-circuit protection for 62mm SiC and IGBT modules Universal scalable gate driver for 1200V and 1700V rated applications San Jose, Califor...[Details]
There are two methods for sorting LEDs : one is chip-based test sorting, and the other is test sorting of packaged LEDs. (1) Chip testing and sorting LED chip sorting is very difficult, mainl...[Details]
introduction
As a light-emitting
device
with low
power
, long service life and low energy loss
, light-emitting diode has been popular in China for nearly 20 years. Due to its s...[Details]
At present, the heat dissipation design of LED package substrate is roughly divided into two parts: heat conduction from LED chip to package body, and heat transfer from package body to the outside...[Details]
Power Device Dynamic Parameter Test System Selection and Pitfall Avoidance Guide
"Dynamic characteristics are important characteristics of power devices and play a very important rol...[Details]
The main parts of mining machinery such as the front and rear frames of electric scrapers, the speed reducer of shotcrete machines, and the speed reducer of electric locomotives generally need to be ...[Details]
In recent years, coal mine production safety accidents have occurred frequently, resulting in the serious phenomenon of "major accidents are frequent and minor accidents are continuous", which no...[Details]
The monolithic integrated FM transmitter circuit composed of MC2831A and peripheral components is shown in the figure. The operating voltage of MC2831A is 3~9V. The frequency of the crystal SJT is ...[Details]
After the National Day holiday, the new energy vehicle market has expanded, driving the development of related industrial chains. The lithium battery market has ushered in a new wave of growth. The...[Details]
The electrical characteristics of white light LEDs are highly discrete, and white light LEDs are a homogeneous electric light source and a semiconductor lighting device. It has the characteristics ...[Details]
In the design of LED products, boost or buck-boost circuit design is often used . Transformers can be designed for boost but the efficiency is low. In the future, low voltage circuit devices will be...[Details]
stm32/stm8
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