$$\pm \, 0.5$$ V, 254 $$\upmu $$W Second-Order Tunable Biquad Low-Pass Filter with 7.3 fJ FOM Using a Novel Low-Voltage Fully Balanced Current-Mode Circuit

2020 ◽  
Author(s):  
P. S. Veerendranath ◽  
Vivek Sharma ◽  
M. H. Vasantha ◽  
Y. B. Nithin Kumar
Keyword(s):  
Low Voltage ◽  
Current Mode ◽  
Second Order ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

Study of a second order low pass filter based on hybrid SETMOS

2013 ◽  
Author(s):  
Li Cai ◽  
Qiang Kang ◽  
Dang Yuan Shi
Keyword(s):  
Second Order ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

The Design of Ideal Positioning Servo System

2015 ◽  
Vol 816 ◽  
pp. 132-139
Author(s):  
Ľubica Miková ◽  
Alexander Gmiterko ◽  
Michal Kelemen
Keyword(s):  
Frequency Characteristic ◽  
Pid Controller ◽  
Transfer Functions ◽  
Servo System ◽  
Second Order ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Degree Of Stability

The paper deals with the design of an ideal positioning servo system. To achieve this aim, we will derive transfer functions of the PID controller and the second-order low-pass filter while using typical fault frequencies for PID controller with a low pass filter. Consequently, an overall frequency characteristic of the open servo system will be depicted. This characteristic will be further used to determine the amplitude and phase safety, which determine the degree of stability system.

Chatter alleviation for a class of second-order under-actuated mechanical systems with matched and mismatched disturbances

2016 ◽  
Vol 23 (3) ◽  
pp. 458-468
Author(s):  
Jinjin Shi ◽  
Jinxiang Wang ◽  
Fangfa Fu
Keyword(s):  
Sliding Mode ◽  
Mechanical Systems ◽  
Design Procedure ◽  
Second Order ◽  
Control Input ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Sliding Surfaces ◽  
Low Pass ◽  
Mismatched Disturbances

The chattering phenomenon and a system with both matched and mismatched disturbances are the major difficulties in sliding mode control design. This paper presents an effective design procedure to alleviate these two difficulties for a class of second-order under-actuated mechanical systems. In the proposed design, new hierarchical sliding surfaces are designed and a modified disturbance observer is utilized to estimate the lumped disturbance which is a linear combination of the matched and mismatched disturbances. The chatter in control input is filtered out by an integrator, which acts as a low-pass filter. The asymptotic stabilities of the entire sliding surfaces are guaranteed. A design study considering lateral control of a vehicle with matched and mismatched disturbances demonstrates the effectiveness of the proposed design.

scholarly journals REALIZATION OF FIRST-ORDER CURRENT-MODE FILTERS WITH LOW NUMBER OF MOS TRANSISTORS

2013 ◽  
Vol 22 (01) ◽  
pp. 1250071 ◽  
Author(s):  
ERKAN YUCE ◽  
SHAHRAM MINAEI ◽  
NORBERT HERENCSAR ◽  
JAROSLAV KOTON
Keyword(s):  
Low Voltage ◽  
Current Mode ◽  
Low Noise ◽  
Mos Transistors ◽  
Pass Filter ◽  
First Order ◽  
Saturation Region ◽  
Low Pass ◽  
High Pass ◽  
Nmos Transistors

In this paper, a new current-mode (CM) circuit for realizing all of the first-order filter responses is suggested. The proposed configuration contains low number of components, only two NMOS transistors both operating in saturation region, two capacitors and two resistors. Major advantages of the presented circuit are low voltage, low noise and high linearity. The proposed filter circuit can simultaneously provide both inverting and non-inverting first-order low-pass, high-pass and all-pass filter responses. Computer simulation results achieved through SPICE tool and experimental results are given as examples to demonstrate performance and effectiveness of the proposed topology.

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