Although the basic design for general lighting applications is relatively simple, the design becomes very complex when additional features such as phase cut dimming and power factor correction are req...
I'm learning about RF recently, and I'm confused about something. I'd like to ask you to help me with some parameters of the receiver: RFin=-80dBm~-10dBm, f=900M~1600M, each channel is 50M, OFDM modul...
[size=5]1. The analog crossover is a circuit device in the speaker that separates the input analog audio signal into different parts such as treble, midrange, and bass, and then sends them to the corr...
[i=s]This post was last edited by dcexpert on 2015-1-26 00:45[/i] I have been troubled by the USB routines on SAM R21 for the past two days. After downloading the USB CDC and USB Keyboard routines in ...
I used the JTAG port to export a FLASH thing, a BIN file, and originally wanted to use viewbin, cvrtbin, dumprom to export the content. But now it says "No signature B000FF. Not a BIN file". This BIN ...
[i=s]This post was last edited by dontium on 2015-1-23 11:22[/i]When doing electronic design, you often encounter some noise jumping up and down, like a square wave repeating in a cycle. This is jump ...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[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]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
Portable power applications are broad and varied. Products range from wireless sensor nodes with average power consumption of only a few microwatts to in-vehicle medical or data acquisition systems...[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]
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]