-
On December 25, State Grid Jiangsu Electric Power Co., Ltd. used the relay protection "mine clearance" system to screen the family defects and old equipment of relay protection at all voltage level...[Details]
-
Generally speaking, programmable interface chips have memory and address lines. Programmable means that the CPU uses instructions to write certain data into a certain memory of the interface chip. ...[Details]
-
Here we introduce the most commonly used 4*4 matrix keyboard, and other more keys are expanded on this basis.
The circuit we usually use is as follows. I just drew this picture. Just understand the m...[Details]
-
In the field of marine ship applications, the increasing displacement has led to an increase in the horsepower of the ship's power system, usually in the tens of thousands of horsepower, or even hund...[Details]
-
1) As the fuel cell technology route becomes increasingly popular in the government's work reports, financial support and development direction, both local governments and capital have begun to consi...[Details]
-
According to the Ericsson Mobility Report November 2019, as the 5G ecosystem continues to develop, Ericsson expects the number of global 5G users to reach 2.6 billion in the next five years. 2019 w...[Details]
-
Last two times we did two experiments, both of which used the pin P1.0 to turn on the light. We can imagine: since P1.0 can turn on the light, then can other pins not? Take a look at Figure 1, whic...[Details]
-
X-ray inspection is commonly used for security scanning of baggage, such as checked and carry-on baggage at airports. The items to be inspected are irradiated with X-rays, and the radiation that passe...[Details]
-
Europe/Middle East/Africa (EMEA) has historically been the region with the largest demand for PV inverter replacements, as core markets in the region, such as Germany, Italy, Spain, the Czech Republic...[Details]
-
On July 21, Nasda issued an announcement stating that the company plans to purchase 100% of the equity of Zhuhai Bentu Electronics Co., Ltd. (hereinafter referred to as "Bentu Electronics") held by t...[Details]
-
According to foreign media reports, an international team led by the Institute of Superconducting and Electronic Materials at the University of Wollongong confirmed that the structural stability of l...[Details]
-
Automotive relays play an important role in the vehicle's electrical system, and are responsible for controlling the switching of various electrical devices. However, due to long-term use or the in...[Details]
-
Today I will introduce to you the basic requirements analysis of circuit breaker control circuits. Do you understand it?
(1) There should be a monitoring circuit for the control power supply. The...[Details]
-
Engineers all know that power supply measurement of electronic devices usually refers to the measurement of switching power supplies, of course, including linear power supplies. This article explains ...[Details]
-
0 Preface
At present, leakage protectors are widely used as a new type of low-voltage protection electrical appliance, both in cities and in rural areas. The reliability of their work directly affe...[Details]
Discrete Device
京公网安备 11010802033920号
EEWORLD
