51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Sunday, November 16th, 2008 at 22:12 | No comments

Categories: Power Supply

Tags: software

Short Content: 　　So long as increases several inexpensive miniature components, the beforehand hard segment pressure controls the current supply on to become the software programmable pressure to control the current supply invariably (Figure 1). Digital potentiometer IC1 and precise operational amplifier IC2 establishes together winds through transmits transistor's electric current ISET, but shunt regulator IC3 provides a constant reference voltage in the digital potentiometer both sides. Transmits the transistor, so long as works in its range of linearity, may act according to ...

Sunday, September 14th, 2008 at 03:13 | No comments

Categories: SCM

Tags: AVR, Bootloader, inversion law, Mega48, preservation law, software

Short Content:     AVR is the first section of RISC structure 8 monolithic integrated circuits which in the true sense Atmel Corporation promotes, has advanced set of instructions and the single clock cycle instruction time, the data turnover rate may reach as high as 1MIPS, its performance surpasses the other type 8 monolithic integrated circuits obviously.        As the AVR mainstream product, Mega series's many products (Mega8/Megal6/Mega32/Mega8535 and so on) supports the Boot-loader function on the hardware. Such MCU may move ...

Thursday, September 11th, 2008 at 22:12 | No comments

Categories: SCM

Tags: PICl6F7X, Robot, software

Short Content:     Author's project is realization which the related robot controls. The control section uses the PICl6F7X series monolithic integrated circuit, the utilization assembly language programming, the running rate is quick, can meet system's requirements. Uses in here mostly is the digital signal control, electrical machinery's control only then opens and gathers two conditions. Needs two arms, the body, the forehead in the movement process, the foot department and so on synchronized action. The entire control system is quite complex, thus ...

Thursday, September 11th, 2008 at 11:49 | No comments

Categories: DSP

Tags: DSP, Phase-locked loop, software

Short Content:     Along with the large scale integrated circuit and the high speed figure signal processor's development, the correspondence domain's signal processing more and more puts in the digital territory to realize. The software phase lock technique is a research subject which the development and the high speed DSP appearance develops along with the software radio. The phase lock technique which uses in the software radio receiver is and so in the general programmable component realizes the form based on the ...