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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]
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A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
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Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
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1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
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A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
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The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
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There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
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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]
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Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]
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With the development and application of liquid crystal display technology, more and more developers want to use liquid crystal screens to display Chinese characters in the instruments and equipment th...[Details]
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1. Introduction
With the continuous development of modern urban construction, infrastructure and real estate are becoming increasingly prosperous, and the quality requirements for construction ...[Details]
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: Ambiguous operators need parenthesesAmbiguous
symbol ``xxx``Argument
list syntax errorArray
bounds
missingArray
size
toolargeBad
character
in paramentersBad
file
name format in i...[Details]
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1. Project Introduction
Energy consumption is an important controllable part of the cost of enterprise products. Reducing energy consumption is an important way for enterprises to reduce costs...[Details]
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1. Introduction
According to the definition of the International Electrotechnical Commission (IEC) and the American Instrument Society (ISA), fieldbus is a digital, two-way transmission, multi...[Details]
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1. Introduction
PROFIBUS is an international, open asynchronous serial communication standard, which is widely used in manufacturing automation and process automation, buildings, transportatio...[Details]
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