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The boundary scan in brings DSP in the chip digit circuit wafer test application
Friday, July 10th, 2009 at 08:55 | No commentsCategories: DSPShort Content: 0 introductions In the Modern Radar system, has DSP (digital signal processor) the chip digital circuit wafer application to be very broad. The DSP chip supports the IEEE 1149.1 standards basically, and has formed the boundary scan chain in the circuit wafer, supports the boundary scan test. Has this kind of kind of integrated circuit in the DSP circuit wafer, they belong to the non-boundary scan component, located at the circuit wafer edge coupling and between the boundary scan chain ... -
Single-phase source power factor compensating circuit’s analysis and improvement
Monday, April 20th, 2009 at 05:59 | No commentsCategories: Power SupplyShort Content: Abstract: Elaborated by ST Corporation's L656l chip constitution, the critical breakover pattern active power factor adjusts the principle, has analyzed it, in has pressed in the situation the flaw, and proposed one kind of improvement electric circuit.Key word: Power factor adjustment; L656l; Has pressed the vibration 0 introductions Along with global energy day by day scarce, the people pay attention to power source's energy conservation more and more, thus the active power factor adjusted (APFC) in domains and so on ... -
Based on K line automobile roof louvre window motor ECU communication system’s design - 51RD Chinese electronic net
Monday, December 8th, 2008 at 00:09 | No commentsCategories: Communication NetworksShort Content: The Webasto vehicle roof heating system Limited company is the world-famous vehicle roof heating system equipment supplier, holds the mass market share in China. In assembles the roof louvre window motor before the roof louvre window, must carry on many operations and the test, includes specifically: The assembly test, the short circuit test, the earth test, the software release confirmation, the hardware edition confirmation, the read series number, the parameter read in with the read-out and the revolution test. The ... -
Based on AVR monolithic integrated circuit’s nuclear magnetic resonance meter bed body examination system
Saturday, November 29th, 2008 at 22:52 | No commentsCategories: SCMShort Content: Abstract: This article introduced realizes the nuclear magnetic resonance meter bed body examination system's hardware and the software design by the AVR monolithic integrated circuit, analyzed and has studied the bed body transversal motion and the longitudinal motion accuracy control question thoroughly. Key word: AVR monolithic integrated circuit; Examination system; Motor control; 1 Introduction In recent years along with medicine technology fast development, nuclear magnetic resonance meter already in large and middle scale hospitals by widespread application. ... -
Realizes - en.51rd.net based on the RS-485 main line’s automobile four round position finder communication function
Thursday, October 30th, 2008 at 15:10 | No commentsCategories: Communication NetworksTags: automobile electron, examination, four rounds locates the, Serial communication, The RS-485, VBShort Content: Abstract: The automobile four round position finder was a distributed computer observation system, this article introduced controlled the MSComm communication through the RS-485 main line and using VB 6.0 ActiveX to control, has realized in the automobile four round position finder single Taiwan PC machine and many monolithic integrated circuit's communication functions.Key word: RS-485; Serial communication; Four rounds localization; VB; Examination 1st, introduction The automobile in the normal speed process, should have changes the operation facile and maintains automatically ... -
Based on monolithic integrated circuit’s folding machine carton examination system’s design
Monday, October 20th, 2008 at 23:44 | No commentsCategories: SCMShort Content: Abstract: The article introduced one kind based on the monolithic integrated circuit AT89C55 folding machine carton monitor control system. System's hardware design including the level switch module, against moves the module, the warning engine off module, the communication module, the memory expansion module by mistake, the software design use μVision2 integrated development environment and WAVE6000. This system replaces the original PLC examination system. The system after the test, the movement is steady, the response is agile. Achieves the design requirements. ... -
Patrols automatically based on the monolithic integrated circuit coil type robot control system design - 51rd the Chinese electronic net
Thursday, September 18th, 2008 at 00:51 | No commentsCategories: SCMShort Content: Abstract: Designed one kind to patrol the coil type to walk automatically the robot control system, used at89S52 monolithic integrated circuit to take master control CPU, sur- complex might bian regulation logic component (CPID) assist the CPU processing data, expanded the program parameter memory, could carry on the examination inlet line and the direct current machine, servo's PWM control.Key word: Control system; Complex programmable logical component; Memory; Electro-optical examination; Pulse width modulation 1 introduction The wheeled motion robot is a ...
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