The input of this circuit is 220mV AC. I don't understand what the subsequent circuit does and what the P and N are at the final output. Can you help me analyze it?...
Xiangban, the USB module of the current project is based on the official library of st, and a custom device is implemented. Now the question is: how can I determine the success of the USB enumeration ...
[size=4][md]After several hours of soldering, the PCB was finally soldered. Due to the lead-free solder used, the soldering process was quite painful, and the soldered product was ugly. It can only be...
DSP chip, also known as digital signal processor, is a microprocessor with a special structure. The DSP chip adopts Harvard structure with separate program and data, has a special hardware multiplier,...
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[Details]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[Details]
One in five car failures are caused by batteries, a problem that will become more serious in the coming years as electric-by-wire, start/stop engine management and hybrid (electric/gas) vehicles be...[Details]
The power supply is the core component of a computer. Although it is not of high value, all computer components rely on the switching power adapter to provide energy, so the stability of a power su...[Details]
DCDC means DC to DC (conversion of different DC power values). Anything that meets this definition can be called a DCDC converter. Specifically, it means converting the input DC into AC through a s...[Details]
This paper describes the design method of electronic multifunctional watt-hour meter, the key technology of hardware design and the software design process. Taking NEC's μPD78F0338 microcontroller ...[Details]
Preface
DS18B2 is generally used in conjunction with a single-chip microcomputer, and there are few reports on
the interface between
DSP
and DS18B20. Therefore, this article introdu...[Details]
introduction
Frequency characteristic tester
Also known as sweep frequency meter or frequency response analyzer, it uses a rectangular oscilloscope with internal scale as
a displ...[Details]
The embedded network module series products of Yingchuang Company all have a streamlined ISA expansion bus, which usually includes several address buses, 8-bit data buses, read and write control li...[Details]
With the tense global energy situation and the improvement of human environmental protection awareness, the research and development of power batteries is in full swing around the world. At present...[Details]
1. Overview
With the development of science and technology, PLC is increasingly used in industrial control. The reliability of PLC control systems directly affects the safe production and economic o...[Details]
DSP and ARM Processors
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