Current differential protection is a type of protection in relay protection. Forclear's differential protection and reverse phase sequence are both correct. The positive phase sequence is A ahead of B...
I would like to ask you experts, how can I use diodes and transistors to build a detection circuit? When there is an input signal, the output level of the transistor is low. I have tried many times bu...
[i=s]This post was last edited by zhaojun_xf on 2016-3-10 14:03[/i] Recently the company is recruiting, and we need to recruit a colleague who is good at motor to work with us. The specific requiremen...
Red Hurricane II 1C12 Development Learning Board [Product Features] 1. Support complete NIOSII development, support NiosII/e, NiosII/s and NiosII/f three series of NIOSII CPU. 2. Support uCLinux, prov...
[code] Send a byte INT8U through the SPI interface temp; SPI_SPDR = byte; /* Put the send data into the SPI data register*/ while(0 == (SPI_SPSR & 0x80)); /* Wait for SPIF to be set, that is, wait for...
[align=left][size=2] Hehe, our Freescale. Finally there is a Freescale section. Now I am transferring some of the things I wrote before, hoping that more people will pay attention to Freescale. [/size...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
1. Introduction
With the gradual automation and modernization of industrial control systems, fieldbus control systems have received more and more attention and application. CAN bus is currentl...[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
The Third Steel Plant of Jigang Group is a key investment project of Jigang Group during the "15th Five-Year Plan". It has introduced first-class domestic and foreign advanced eq...[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]
1 Development of LED Film and Television Lighting
1.1 The significance of developing film and television lighting
Lighting power consumption accounts for a large proportion of the total p...[Details]
store
To prevent moisture, LEDs should be stored in a dry and ventilated environment with a storage temperature of -40°C to +100°C and a relative humidity below 85%.
The LED should be use...[Details]
Mobile phones, MP3s, tablet computers, laptops, digital cameras, handheld game consoles, navigation devices, etc., all these mobile devices are powered by mobile batteries, and the battery life is ...[Details]
1 Introduction
Fieldbus is a serial, digital, multi-point communication data bus between field equipment/instruments installed in the production process area and automatic control devices/syst...[Details]
introduction
Caller ID delivery (CID) is a service provided to the user's phone. The method is that the originating switch transmits the caller number and other information to the terminal swi...[Details]
Today, fleet management innovation has made great progress. Whether trucks, buses, taxis or other means of transportation, wireless satellite positioning systems are used to enable dispatchers to u...[Details]
"Multimeter" is the abbreviation of multimeter, which is an indispensable tool in our electronic production. The advantages of multimeter are that it has many uses, a wide range, an...[Details]