Hardware circuit design of on-load voltage regulation switch based on high power IGBT

Author(s):  
Junqing Gao ◽  
Junkai Ge ◽  
Jing Zhang ◽  
Xiang Hu ◽  
Tiyin Li ◽  
...  
2012 ◽  
Vol 182-183 ◽  
pp. 411-415
Author(s):  
Jun Sun ◽  
Bo Xiang ◽  
Ping Zhou ◽  
Xiu Ying Wang

In this paper, an adjustable constant current circuit is designed by combining the digital potentiometer X9312 and the microcontroller 89C52. We first introduce the overall component and structure of the constant current dimming circuit which needs to be designed. Then, the hardware circuit design and the software design are discussed in detail. Based on the proposed design method, the manufacturing and the testing of the prototype machine are taken at last. The testing results are satisfactory, and meet the design requirement. The proposed design approach has won award in 2009 National Undergraduate Electronic Design Contest.


2014 ◽  
Vol 1079-1080 ◽  
pp. 1045-1048
Author(s):  
Dan Li ◽  
Wei Xu

This paper describes the design of household intelligent cleaning robot, which is an innovative work of collegiate contest. This paper describes the general structure of system, hardware circuit design and software program design. The robot can achieve autonomous movement, garbage cleaning, obstacle avoidance and other functions. It can work in the home, library, exhibition halls and other indoor environment. This design, which is applied to the training of electronic course group, not only cultivates the students' professional interest but also improves the students' engineering practice ability and innovation ability. This design has been successfully used in the electronic course group training of application-oriented universities


2013 ◽  
Vol 397-400 ◽  
pp. 1808-1813
Author(s):  
Cheng Feng ◽  
Da Li Wang ◽  
Jin Li

With the development of flexible HVDC technology in the world, back-to-back HVDC system based on MMC topology have more attention. A high power back-to-back flexible HVDC prototype has been developed to assess performance and reliability of construction of converter valve segment. Valve normal working condition (rated conditions rated voltage, current, temperature), valve transient working condition (temporary overvoltage, overcurrent), valve fault protection and anti-interference ability are accessed. Performance and reliability of control and protection equipment are assessed. The design of control and protection strategy is optimized. The correctness of main circuit design is tested.


2014 ◽  
Vol 513-517 ◽  
pp. 1494-1498 ◽  
Author(s):  
Zhang Hong ◽  
Jun Jie Wang ◽  
Ai Sheng Ma

In view of the problems in the current domestic and international remote wireless meter reading system, propose the remote wireless meter reading terminal system based on ZigBee technology combined with GPRS technology, carry out the hardware circuit design of each module, establish ZigBee wireless meter reading network based on 802.15.4 layer networking protocol, design a more practical remote wireless meter reading protocol and data transmission format. Test results show that it has realized the formation of ZigBee network, collection and remote transmission of meter data, terminal equipment parameters modification and other functions to achieve the terminal design requirements.


Author(s):  
Selçuk Kose ◽  
Simon Tam ◽  
Sally Pinzon ◽  
Bruce McDermott ◽  
Eby G. Friedman

1981 ◽  
Vol 20 (1) ◽  
pp. 129-137 ◽  
Author(s):  
Mitsuo Maeda ◽  
Tsuyoshi Nishitarumizu ◽  
Yasushi Miyazoe

2014 ◽  
Vol 945-949 ◽  
pp. 2237-2240
Author(s):  
Feng Gao ◽  
Liang Fei Liu ◽  
Hong Wei Zhao

This article describes the SCM combined with A/D converter and wireless digital transmission module which is used for building a DC voltage measurement system based on LabVIEW. The system uses AT89C52 as controller, ICL7135 as precision, double integral A/D converter circuit as voltage data collection, PTR2000 as a wireless transmission module and the LCD display module as the measured voltage. The collected data can be transmitted to a PC. The hardware system design of the DC digital voltmeter is introduced exhaustively. It also gives some details of the hardware circuit design.


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