scholarly journals Electronically-Controllable Grounded-Capacitor-Based Grounded and Floating Inductance Simulated Circuits Using VD-DIBAs

2013 ◽  
Vol 04 (05) ◽  
pp. 422-430 ◽  
Author(s):  
Data Ram Bhaskar ◽  
Dinesh Prasad ◽  
Kanhaiya Lal Pushkar
Keyword(s):  
Floating Inductance ◽  
Electronically Controllable

scholarly journals Realization of New Electronically Controllable Grounded and Floating Simulated Inductance Circuits Using Voltage Differencing Differential Input Buffered Amplifiers

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Dinesh Prasad ◽  
D. R. Bhaskar ◽  
K. L. Pushkar
Keyword(s):  
Differential Input ◽  
Active Circuit ◽  
Floating Inductance ◽  
Electronically Controllable

A new active circuit is proposed for the realisation of lossless grounded and floating inductance employing Voltage Differencing Differential Input Buffered Amplifiers (VD-DIBAs). The proposed grounded simulated inductance circuit employs two VD-DIBAs and a single-grounded capacitor whereas the floating simulated inductance circuit employs three VD-DIBAs and a grounded capacitor. The circuit for grounded inductance does not require any realization conditions whereas in case of floating inductance, only equality of two transconductances is needed. Some sample results demonstrating the applications of the new simulated inductors using VD-DIBAs have been given to confirm the workability of the new circuits.

ELECTRONICALLY-CONTROLLABLE FLOATING INDUCTOR USING OPERATIONAL MIRRORED AMPLIFIER

2009 ◽  
Vol 18 (01) ◽  
pp. 59-66
Author(s):  
R. K. SHARMA ◽  
R. SENANI ◽  
D. R. BHASKAR ◽  
A. K. SINGH ◽  
S. S. GUPTA
Keyword(s):  
Building Blocks ◽  
Pspice Simulations ◽  
Op Amp ◽  
Dominant Pole ◽  
External Resistor ◽  
Floating Inductance ◽  
New Formulation ◽  
Electronically Controllable

The operational mirrored amplifiers (OMA) were introduced as useful building blocks for facilitating an easy realization of floating impedances (in conjunction with RC elements) as compared to other approaches of floating impedance simulation. In this paper, we present a new formulation, for realizing a floating inductance (FI) using an OMA which takes into account the dominant pole of the op-amp employed in the OMA and hence, does not require any external capacitor. Moreover, when the only external resistor employed is replaced by an electronically-controlled resistance, the resulting circuit permits an electronically controllable floating inductance. The workability of the proposed FI has been demonstrated by PSPICE simulations.

scholarly journals PyroMEMS as Future Technological Building Blocks for Advanced Microenergetic Systems

Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 118
Author(s):  
Jean-Laurent Pouchairet ◽  
Carole Rossi
Keyword(s):  
Building Block ◽  
Building Blocks ◽  
Small Scale ◽  
Technological Evolution ◽  
Research Groups ◽  
Function Block ◽  
The Past ◽  
New Methods ◽  
Safety And Reliability ◽  
Electronically Controllable

For the past two decades, many research groups have investigated new methods for reducing the size and cost of safe and arm-fire systems, while also improving their safety and reliability, through batch processing. Simultaneously, micro- and nanotechnology advancements regarding nanothermite materials have enabled the production of a key technological building block: pyrotechnical microsystems (pyroMEMS). This building block simply consists of microscale electric initiators with a thin thermite layer as the ignition charge. This microscale to millimeter-scale addressable pyroMEMS enables the integration of intelligence into centimeter-scale pyrotechnical systems. To illustrate this technological evolution, we hereby present the development of a smart infrared (IR) electronically controllable flare consisting of three distinct components: (1) a controllable pyrotechnical ejection block comprising three independently addressable small-scale propellers, all integrated into a one-piece molded and interconnected device, (2) a terminal function block comprising a structured IR pyrotechnical loaf coupled with a microinitiation stage integrating low-energy addressable pyroMEMS, and (3) a connected, autonomous, STANAG 4187 compliant, electronic sensor arming and firing block.

Single LT1228 Based Electronically Controllable Sawtooth Generator

2021 ◽  
Author(s):  
Nattapong Thanyaratsakul ◽  
Apiwat Tanthong ◽  
Tanapol Tritummanurak ◽  
Rapeepan Keaw-on ◽  
Kittithuch Paponpen ◽  
...  
Keyword(s):  
Sawtooth Generator ◽  
Electronically Controllable

Design Optimization Method for MR-Brake Actuators

2011 ◽  
Author(s):  
Ozan G. Erol ◽  
Hakan Gurocak ◽  
Berk Gonenc
Keyword(s):  
Optimal Solution ◽  
Volume Ratio ◽  
Optimization Methods ◽  
Search Space ◽  
Optimization Method ◽  
Friction Torque ◽  
Element Analysis ◽  
Taguchi Design Of Experiments ◽  
Variable Friction ◽  
Electronically Controllable

MR-brakes work by varying viscosity of a magnetorheological (MR) fluid inside the brake. This electronically controllable viscosity leads to variable friction torque generated by the actuator. A properly designed MR-brake can have a high torque-to-volume ratio which is quite desirable for an actuator. However, designing an MR-brake is a complex process as there are many parameters involved in the design which can affect the size and torque output significantly. The contribution of this study is a new design approach that combines the Taguchi design of experiments method with parameterized finite element analysis for optimization. Unlike the typical multivariate optimization methods, this approach can identify the dominant parameters of the design and allows the designer to only explore their interactions during the optimization process. This unique feature reduces the size of the search space and the time it takes to find an optimal solution. It normally takes about a week to design an MR-brake manually. Our interactive method allows the designer to finish the design in about two minutes. In this paper, we first present the details of the MR-brake design problem. This is followed by the details of our new approach. Next, we show how to design an MR-brake using this method. Prototype of a new brake was fabricated. Results of experiments with the prototype brake are very encouraging and are in close agreement with the theoretical performance predictions.

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