基于通用集成运算放大器，利用MASON公式设计了一个多功能二阶通用滤波器，能同时或分别实现低通、高通和带通滤波，也能设计成一个正交振荡器。电路的极点频率和品质因数能够独立、精确地调节。电路使用4个集成运放、2个电容和11个电阻，所有集成运放的反相端虚地。利用计算机仿真电路的通用滤波功能、极点频率和品质因数的独立控制和正交正弦振荡，从而证明该滤波器正确有效。 Abstract: A new multifunctional second-order filter based on OPs was presented by MASON formula. Functions， such as high-pass， band-pass， low-pass filtering， can be realized respectively and simultaneously， and can become a quadrature oscillator by modifying resistance ratio. Its pole angular frequency and quality factor can be tuned accurately and independently. The circuit presented contains four OPs， two capacitors， and eleven resistances， and inverting input of all OPs is virtual ground. Its general filtering， the independent control of pole frequency and quality factor and quadrature sinusoidal oscillation were simulated by computer， and the result shows that the presented circuit is valid and effective.
上传时间： 2013-10-09
上传用户：13788529953
This application note discusses a variety of approaches for interfacing analog signals to 5V powered systems. Synthesizing a "rail-to-rail" op amp and scaling techniques for A/D converters are covered. A voltage-to-frequency converter, applicable where high resolution is required, is also presented.
上传时间： 2013-10-12
上传用户：181992417
Libnet is a cross-platform library aimed at game developers. It has an abstract high level API, which encourages developers to make their games portable across platforms and network types
标签： cross-platform developers abstract library
上传时间： 2015-01-14
上传用户：ghostparker
High Performance MySQL (O Reilly,2004）
标签： Performance Reilly MySQL High
上传时间： 2015-02-21
上传用户：nanfeicui
NTL is a high-performance, portable C++ library providing data structures and algorithms for manipulating signed, arbitrary length integers, and for vectors, matrices, and polynomials over the integers and over finite fields.
标签： high-performance algorithms structures providing
上传时间： 2014-01-05
上传用户：水中浮云
FlexCompress is a high-speed compression library developed to provide archive functionality for your applications. This solution provides flexible compression and strong encryption algorithms that allows you to integrate archiving or backup features into your programs in a fast and easy way.
标签： functionality FlexCompress compression high-speed
上传时间： 2015-04-04
上传用户：s363994250
SR-tree is an index structure for high-dimensional nearest neighbor queries，C++ sourcecode. SR-tree outperforms the R*-tree and the SS-tree especially for high-dimensional and non-uniform data which are likely to appear in the actual image / video applications.
标签： high-dimensional structure neighbor SR-tree
上传时间： 2013-12-10
上传用户：zjf3110
A high quality VC++ source code implementing the very important context-based adaptive arithmetic coder.
标签： context-based implementing arithmetic important
上传时间： 2015-04-10
上传用户：changeboy
Multicode High-Speed Transmission for Wireless Mobile Communications
标签： Communications Transmission High-Speed Multicode
上传时间： 2014-01-08
上传用户：GavinNeko
Control of High Voltage 3-Phase BLDC Motor
标签： Control Voltage Phase Motor
上传时间： 2015-04-21
上传用户：silenthink
