| 1. | The hardware design of stb is discussed and the pcb ( printed circuit board ) picture is presented
完成了数字电视机顶盒的硬件设计与pcb制板。 |
| 2. | The thesis includes the design of hard circuit , pcb ( printed circuit board ) , driver and application soft
本课题包括硬件电路、印刷电路板( pcb ) 、驱动程序和应用软件的设计。 |
| 3. | The pld ( programmable logic device ) is chosen as the core of the pcb ( printed circuit board ) , which is designed to implement the function of dongle
在设计中，选择altera公司的pld器件做为核心芯片来实现加密锁，完成对软件的保护。 |
| 4. | With the development of semiconductor process technology , nowadays a system on a pcb ( printed circuit board ) which is composed of several ics can be integrated into a chip
随着集成电路制造工艺的飞速发展，人们已经可以将原先用各种电路搭建的板极系统集成在一块芯片上。 |
| 5. | With the development of semiconductor process technology a system on a pcb ( printed circuit board ) which is composed of several ics can be integrated into a chip
随着集成电路工艺的飞速发展，人们已经可以将原先的板级系统集成在一块芯片上，系统芯片逐渐成为集成电路设计的主流发展趋势。 |
| 6. | In order to increase the stability of the system , decrease the area of the pcb ( printed circuit board ) and reduce cons - umption of power , control logic were integrated into a single chip by using fpga and cpld
为提高系统的稳定性，减少pcb板面积，降低功耗，应用fpga , cpld器件将各种控制逻辑集成在一块芯片上。 |
| 7. | High speed circuit is widely used , in order to obtain high performance , quantitative analysis about the pcb ( print circuit board ) circuit is fully described , and efficient shield , bypass , ground is used in design the high resolution circuit
其中对pcb电路的设计进行了十分详尽的定量分析，提出了许多源于理论和经验的设计原则。 |
| 8. | After analyzing the technological guide line of the whole system , the visualized circuit structure is given and the primary chips are introduced in this paper . and the facture of pcb ( printing circuit board ) is ordained in some aspects
通过对整个系统技术指标的分析，设计和实现了一个高性能的数字复接与d a转换电路，给出了电路板的功能结构框图，并对电路中用到的主要器件作了较为详细的介绍。 |
| 9. | As the development of microwave technology and the universal use of vlsi ( very large scale integration ) and ulsi ( ultra large scale integration ) , traditional automatic testing technology for pcb ( printed circuit board ) is faced with a rigorous challenge
随着微波、毫米波技术的发展以及超大规模集成电路( vlsi ) 、极大规模集成电路( ulsi )的相继诞生和广泛应用,传统的电路板自动测试技术受到了前所未有的挑战。 |
| 10. | The leec biochip can be connected with pcb ( printed circuit board ) , thus it can generate a moving electric field by changing time , scope and field intensity discretionarily under single chip processor ' s control . meanwhile it is probable to reduce driving voltage and decrease temperature greatly , and so increase resolution of dna separation
研究内容包括线性分布式电极阵列的理论设计，以普通载波片和有机高聚物pdms ( polydimethylsiloxane )为基本材料的芯片制作工艺， leec芯片和pcb板的连接方式，硬件控制系统的设计以及控制芯片工作的单片机程序编制等，此外还包括电化学检测方法的研究。 |
