Electronic filter

About: Electronic filter is a research topic. Over the lifetime, 13207 publications have been published within this topic receiving 93063 citations. The topic is also known as: filter.

1V CMOS Gm-C Filters: Design and Applications

Abstract: 1V CMOS Gm-C Filters: Design and Applications discusses the design aspects of transconductor and Gm-C filter circuits, with a special focus on 1V circuit implementations. The emphasis is on high linearity voltage-to-current blocks for wireless and wireline applications, and the designs cover up to very high speed specifications. 1V CMOS Gm-C Filters: Design and Applications provides a clear introduction of low voltage architectures and yields insight into the influence of circuit non-idealities. The fully CMOS implementation could be useful for wireless and wireline applications. The basic design concepts can be easily constructed through the illustration of this book. This book can be provided for engineers and researchers who are interested in the transconductor and Gm-C filter. It is also a good reference for the course related to analog integrated circuit design.

Integrator-filter circuit

Abstract: The circuit has at least two integrator elements (1), a current multiplier (13) and a push-pull amplifier (18). The integration time constant of the integrator element is adjustable by first and second control currents (I1, I2). A third control current (I3) generated depending on a control voltage varies in proportion to the second control current. Each integrator element has a compensation circuit (2) producing compensation and reference currents which are superimposed to produce compensation currents. An Independent claim is also included for a filter arrangement with several integrator-filter circuits.

Passive common mode filter for reducing shaft voltage, ground current, bearing current in dual two level inverter fed open end winding induction motor

Abstract: Dual two level inverter with open end winding can work as three level inverter. Inverter fed drives suffer from common mode issues like shaft voltage, ground currents and bearing currents. Dual inverter fed open end winding induction motor also suffer from these problems. This paper proposes passive filter configuration for reducing shaft voltage, ground currents and bearing current problems in dual two level open end winding drive. Well known space vector PWM (SVPWM) technique is used to verify the effectiveness of this filter configuration. This paper also presents a motor model for shaft voltage of this drive. Motor model and filter topology is first verified through MATLAB simulation and validated by experimental results.

Package for filter design based on MATLAB

Abstract: Electric filters have a relevant importance in electronic systems because they are present in almost any electronic system. For example, communication systems, as many other electric systems, make intensive use of filtering to separate unwanted noise from the desired signal. Unfortunately, filter design is an intensive computational task requiring a significant amount of numerical calculations to obtain either the parameters of a filter transfer function or the element values for a filter circuit realization. This paper describes a software package whose purpose is to provide a tool to be used as a teaching aid in analog and digital filter design courses. The feature of this package is that it uses MATLAB [2] for the numerical computations. The main advantage of the filter design software package described in this paper is that makes uses of one of the MATLAB toolboxes, the signals toolbox (which is used for analog and digital filter design), but used with an interface that makes possible even to the novice user to readily design filters, either analog or digital, without any previous knowledge of MATLAB or the signals toolbox. © 2002 Wiley Periodicals, Inc. Comput Appl Eng Educ 9: 259–264, 2001; Published online in Wiley InterScience (www.interscience.wiley.com.); DOI 10.1002/cae.cae.10004

Monolithic lattice saw filter

Abstract: A monolithic lattice SAW bandpass filter (10) having low insertion loss and a wide bandwidth range is described herein. Specifically, the bandpass filter includes a monolithic piezoelectric substrate (11) and two dual port SAW devices (12, 14) disposed on the substrate and coupled in a full lattice circuit configuration. In a second bandpass filter design the filter (30) includes a monolithic substrate (31) and two sets of dual port SAW devices (32, 34, 36, 38) disposed on the substrate and coupled in a cascaded circuit configuration such that no electrical crossovers occur on the substrate.