AR252

1. Introduction Pulse meter is a common electronic electricity meter on the user side of the power system. For remote electronic meter reading system, reliable and accurate measurement of puls...[Details]

Volkswagen reportedly announced recently that the company will launch 34 new models worldwide in 2020, including 12 SUVs and 8 pure electric or hybrid vehicles.   Volkswagen Chief Operating Officer R...[Details]

Technology is advancing at an ever-increasing rate, and this is no different in the world of security cameras. First, analog cameras and home video systems opened up the security industry. Later, DVR ...[Details]

System Block Diagram The system uses a single-chip microcomputer as the data processing and control core. The single-chip microcomputer completes the human-machine interface, system control, signal a...[Details]

On July 20, Cambrian, the first AI chip stock, was officially listed on the Science and Technology Innovation Board of the Shanghai Stock Exchange (stock code: 688256). The issue price was 64.39 yuan...[Details]

#include reg52.h #define uint unsigned int #define uchar unsigned char sbit lw=P3^1; sbit ld=P3^0; fly duan ={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; ucha...[Details]

Although both the swirl flowmeter and the vortex flowmeter are flowmeters that use the principle of fluid oscillation, they use two completely different working principles. Flowmeter using the Karm...[Details]

On February 15, the first batch of landmark industrial projects in Nanjing Jiangbei New District in 2020 were signed. It is reported that the signing was conducted both online and offline. 11 indus...[Details]

Figure 2-17 (b) is a push-button reset circuit. Its power-on reset function is the same as (a), but it can also be reset by pressing a button. After pressing the button, a loop is formed thr...[Details]

Central topics: Conventional field test scheme and purpose of digital television system This article introduces some common field test schemes and field test purposes of digital TV systems. Its wor...[Details]

#include "reg51.h" sbit KEY0 = P3^2; sbit KEY1 = P3^3; sbit OUT = P0^7; sbit LED = P0^6; void delay_ms(int t) {     int i;     while(t--)     {         for(i=0; i 110; i++);     } } void main() {...[Details]

The MAXQ3120 Electricity Meter (EM) reference design builds a multi-function, multi-rate electricity meter that complies with all applicable standards worldwide. The reference design forms a prototype...[Details]

1 Introduction There are currently five challenging issues with switching power supplies, one of which is whether they can be miniaturized. An important way to miniaturize switching power supp...[Details]

In order to promote the sustainable development of the lead-acid battery industry, the Ministry of Industry and Information Technology organized an expert group to carry out the standard review of ...[Details]

Servo hydraulic press is a hydraulic device that uses a servo motor to drive a hydraulic pump to achieve precise control of pressure, speed and position. It is widely used in metal forming, plastic...[Details]