It is a device placed in the business hall like an ATM machine, which can be used for phone bill inquiry, bill printing, self-service payment, and service activation. It has a touch screen. It should ...
When designing an amplifier, we need to design an input impedance buffer circuit greater than 1M. How should we design it? We usually use 50Ω. We applied for opa693. Can this chip do it? Please help m...
Previously, 232 was used for communication between PC and 51 single-chip microcomputer. When testing the communication protocol, everything was normal. The multiple data could be judged and the return...
[i=s]This post was last edited by yedaochang on 2014-8-16 09:51[/i] [size=6][size=14px]The DSM-HMI7055 core board is a system core board specially used to realize human-computer interaction applicatio...
TI Precision Labs - Noise : https://training.eeworld.com.cn/course/1944
Did you know that standard resistor components that appear to be sitting quietly on your desk are actually generating noise?Unde...
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
At present, with the diversification of portable products and the almost harsh requirements for audio and video parts, the power consumption requirements of the whole machine have been raised to a ...[Details]
It should be understood as follows: DC-DC means direct current to direct current (conversion of different DC power values). Anything that meets this definition can be called a DC-DC converter, incl...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
0 Introduction
With the development of virtual instrument technology, new measurement and control methods that use "virtual instruments" to replace traditional instruments are replacing trad...[Details]
Li/SOCl2 batteries (lithium sub-cells) have the advantages of high operating voltage, stable discharge voltage, wide operating temperature range and long storage life, and have been widely used in ...[Details]
In recent years, the development of automotive batteries has become a focus of attention. Compared with other rechargeable batteries, lithium-ion batteries have the advantages of high specific ene...[Details]
The growing development of wireless networks enables them to support various types of services. Therefore, it is necessary to ensure the QoS of various services and improve the system utilization. To ...[Details]
Introduction
The LED market has seen tremendous growth over the past few years. Advances in thermal dissipation, packaging, and processing have resulted in higher brightness, higher efficien...[Details]
PCB Design
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