ECWM-4-MD-12-15-A-L-B

In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer 87LPC764 , and wa...[Details]

At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]

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]

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]

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]

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 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]

When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility? 1. The following systems should pay special attention to anti-...[Details]

1 Introduction CAN (Controller Area Network) bus is a kind of field bus. It is used in many industrial sectors due to its outstanding advantages such as high performance, high reliability, high...[Details]

In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]

1 Introduction Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]

The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows: 1 Normal state ...[Details]

(1) Open circuit voltage of the battery (2) Internal resistance of the battery (3) Battery operating voltage (4) Charging voltage Charging voltage refers to the voltage applied ...[Details]

Single-chip microcomputer is the abbreviation of single-chip microcomputer. It is made by integrating CPU, ROM, RAM, TIMER/COUNTER and input/output interface (I/O) on a large-scale integrated circu...[Details]

The use of power switches is complex and confusing to most electronic product designers, especially those who are not experts in power management. Power switches are increasingly being used by desi...[Details]