Controllable decoding for automated analog circuit structure design

This study proposes a new method to design an analog circuit based on the control model of the circuit, and the method is applied in the design of the power amplifiers for driving piezoelectric stack actuators. Focusing on the stability of the circuit, two power amplifiers for driving piezoelectric stack actuators are analyzed deeply. The power amplifier using high-voltage operational amplifiers has a simple circuit structure, and the bandwidth and the ripple of the power amplifier are about 43 kHz and 16 mV, respectively. As for the power amplifier using general operational amplifiers, it possesses the qualities of low cost and simple circuit structure, and the bandwidth and the ripple are 53 kHz and less than 2 mV, respectively. Moreover, the proposed power amplifiers can well drive the mechanism stage during the moving range of the piezoelectric stack actuator, and the travelling ranges are both about 13 μm. Viewing the circuit design as control system design, applying control system design method in circuit design and working with PSpice simulation of the circuit: these are the main contents of the proposed method, and the method offers an answer to designing a power amplifier systematically.

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Double Helix Structure and Finite Persisting Sphere Genetic Algorithm in Designing Digital Circuit Structure

International Journal for Innovation Education and Research ◽

10.31686/ijier.vol2.iss3.158 ◽

2014 ◽

Vol 2 (3) ◽

pp. 92-107

Author(s):

Nurzanariah Roslan ◽

Karmila Kamil ◽

Chong Kok Hen

Keyword(s):

Genetic Algorithm ◽

Double Helix ◽

Digital Circuit ◽

Structure Design ◽

Short Chromosome ◽

Structure Representation ◽

Chromosome Representation ◽

Helix Structure ◽

Circuit Structure ◽

Double Helix Structure

This paper proposes a new approach of chromosome representation in digital circuit design which is Double Helix Structure (DHS). The idea of DHS in chromosome representation is inspired from the nature of the DNA's structure that built up the formation of the chromosomes. DHS is an uncomplicated design method. It uses short chromosome string to represent the circuit structure. This new structure representation is flexible in size where it is not restricted by the conventional matrix structure representation. There are some advantages of the proposed method such as convenience to apply due to the simple formation and flexible structure, less requirement of memory allocation and faster processing time due to the short chromosomes representation. In this paper, DHS is combined with Finite Persisting Sphere Genetic Algorithm (FPSGA) to optimal the digital circuit structure design. The experimental results prove that DHS uses short chromosome string to produce the flexible digital circuit structure and FPSGA further optimal the number of gates used in the structure. The proposed method has better performance compared to other methods.

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Flexible Carbon Based Nanoelectronics with Printing Approaches

Letters in Applied NanoBioScience ◽

10.33263/lianbs113.37283737 ◽

2021 ◽

Vol 11 (3) ◽

pp. 3728-3737

Keyword(s):

Thin Film ◽

Thin Film Transistors ◽

Carbon Materials ◽

Materials Science ◽

Carbon Composite ◽

Structure Design ◽

Flexible Sensors ◽

Circuit Structure ◽

Carbon Composite Materials ◽

Energy Storage Applications

This review construes diverse upcoming technologies and significant physical concerns in polymer-carbon composite materials nanoelectronics. There are numerous cases from mechanically flexible and portable thin-film transistors based on carbon materials, flexible and stretchable energy storage applications, flexible sensors applications to flexible solar cells. In various systems, the mechanical structure design is as essential as circuit structure designing. Recent studies in flexible carbon materials-based nanoelectronics suggest that in addition to the advancement, multidisciplinary approaches such as 3D printing, incorporating almost every area of the conventional research, in materials science, chemistry, physics, and engineering fields such as electrical, electronic and mechanical.

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