Schmitt Trigger Based Single-Ended Voltage Amplifier with Positive Feedback Control for Ultra-Low-Voltage Supplies

2020 ◽  
Author(s):  
Luis Henrique Rodovalho
Keyword(s):  
Feedback Control ◽  
Positive Feedback ◽  
Low Voltage ◽  
Schmitt Trigger ◽  
Voltage Amplifier

Operation of the Classical CMOS Schmitt Trigger As an Ultra-Low-Voltage Amplifier

2018 ◽  
Vol 65 (9) ◽  
pp. 1239-1243 ◽  
Author(s):  
Luiz Alberto Pasini Melek ◽  
Marcio Cherem Schneider ◽  
Carlos Galup-Montoro
Keyword(s):  
Low Voltage ◽  
Schmitt Trigger ◽  
Voltage Amplifier

scholarly journals Positive feedback control of Ca2+ mobilization by intracellular alkalization in smooth muscle.

1994 ◽  
Vol 64 ◽  
pp. 137
Author(s):  
Eiji Yomota ◽  
Shigeru Hishinuma ◽  
Masaatsu K. Uchida ◽  
Tomokazu Oshima
Keyword(s):  
Smooth Muscle ◽  
Feedback Control ◽  
Positive Feedback

scholarly journals Design of a Low Voltage Schmitt Trigger in 0.18 um CMOS Process With Tunable Hysteresis

2013 ◽  
Vol 7 (4) ◽  
Author(s):  
Haroon Rashid ◽  
Md. Mamun ◽  
Md. Syedul Amin ◽  
Hafizah Husain
Keyword(s):  
Low Voltage ◽  
Schmitt Trigger ◽  
Cmos Process

scholarly journals Low-voltage, low-power and high gain cmosota using active positive feedback with feed forward and FDCM techniques

2002 ◽  
Vol 15 (1) ◽  
pp. 93-101
Author(s):  
Lyes Bouzerara ◽  
Tahar Belaroussi ◽  
Boualem Amirouche
Keyword(s):  
Positive Feedback ◽  
Low Voltage ◽  
Supply Voltage ◽  
Phase Margin ◽  
Current Mirror ◽  
Power Supply Voltage ◽  
Gain Bandwidth ◽  
Frequency Dependent ◽  
Feed Forward ◽  
Current Mirrors

A low voltage, high dc gain and wideband load compensated cas code operational transconductance amplifier (OTA), using an active positive feedback with feed forward technique and frequency-dependent current mirrors (FDCM), is presented and analyzed. Such techniques stand as a powerful method of gain bandwidth and phase margin enhancements. In this paper, a frequency-dependent current mirror, whose input impedance increases with frequency, is used to form the feed forward path at the input of the current mirror with a feed forward capacitor. By using these techniques, the gain bandwidth product of the amplifier is improved from 115 MHz to 194 MHz, the phase margin is also improved from 85? to 95? and the gain is enhanced from 11 dB to 93 dB. This amplifier operates at 2.5 V power supply voltage drives a capacitive load of 1pF and gives a power dissipation of 7 mW. The predicted performance is verified by simulations using HSPICE tool with 0.8 fim CMOS AMS parameters.

scholarly journals Some Problems of Feedback Control Strategies and It’s Treatment

2017 ◽  
Vol 9 (1) ◽  
pp. 39 ◽  
Author(s):  
Maysoon M. Aziz ◽  
Saad Fawzi AL-Azzawi
Keyword(s):  
Dynamical Systems ◽  
Feedback Control ◽  
Numerical Simulations ◽  
Positive Feedback ◽  
Control Strategies ◽  
Novel Approach

This paper extends and improves the feedback control strategies. In detailed, the ordinary feedback, dislocated feedback, speed feedback and enhancing feedback control for a several dynamical systems are discussed here. It is noticed that there some problems by these strategies. For this reason, this Letter proposes a novel approach for treating these problems. The results obtained in this paper show that the strategies with positive feedback coefficients can be controlled in two cases and failed in another two cases. Theoretical and numerical simulations are given to illustrate and verify the results.

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