Digital logic circuit design using adiabatic approach
A major challenge for the circuit designers nowadays is to meet the demand for low power, especially those used in portable and wearable devices which have limited energy power supply. The reasons of designing low power consumption circuit are to reduce energy usage and minimize dissipation of heat....
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| Format: | Thesis |
| Language: | English |
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2017
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| Online Access: | http://eprints.utm.my/78950/1/NurulAisyahNadiahMFKE2017.pdf |
| _version_ | 1796862952552267776 |
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| author | Zainal Abidin, Nurul Aisyah Nadiah |
| author_facet | Zainal Abidin, Nurul Aisyah Nadiah |
| author_sort | Zainal Abidin, Nurul Aisyah Nadiah |
| collection | ePrints |
| description | A major challenge for the circuit designers nowadays is to meet the demand for low power, especially those used in portable and wearable devices which have limited energy power supply. The reasons of designing low power consumption circuit are to reduce energy usage and minimize dissipation of heat. Adiabatic technique is an attractive approach to obtain power optimization where some of the charge in capacitance can be recycled instead of being dissipated as heat. In this thesis, a methodology for designing sequential adiabatic circuits employing a single-phase power clock was investigated. Initially, methods to simulate dynamic power were analysed by identifying a better and reliable method to simulate adiabatic dynamic power. In addition, a method to validate the output voltage swing was presented. The relationship between voltage swing and power dissipation was analysed. Then, several adiabatic sequential D flip flops (DFF) designs which make use of combinational adiabatic circuit design based on quasi-adiabatic were proposed and suitable types of alternating current power supply which influence dynamic power were analysed and selected. The functionality and performance of the proposed circuits were compared against other adiabatic and traditional Complimentary Metal-Oxide Semiconductor (CMOS) circuits and verified to function up to 1 GHz operating region. Besides the circuits, the layout of the proposed sequential adiabatic design was also produced. All simulations were carried out using 0.25 ^m CMOS technology parameters using Tanner Electronic Design Aided and HSPICE tools. The findings showed that the proposed combinational circuit had less transistor count, lower power dissipation with lower voltage swing as compared to reference adiabatic circuits. Furthermore, the proposed sequential DFF circuit showed 25% less power dissipation compared to traditional CMOS. |
| first_indexed | 2024-03-05T20:19:23Z |
| format | Thesis |
| id | utm.eprints-78950 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T20:19:23Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | utm.eprints-789502018-09-19T05:12:54Z http://eprints.utm.my/78950/ Digital logic circuit design using adiabatic approach Zainal Abidin, Nurul Aisyah Nadiah TK Electrical engineering. Electronics Nuclear engineering A major challenge for the circuit designers nowadays is to meet the demand for low power, especially those used in portable and wearable devices which have limited energy power supply. The reasons of designing low power consumption circuit are to reduce energy usage and minimize dissipation of heat. Adiabatic technique is an attractive approach to obtain power optimization where some of the charge in capacitance can be recycled instead of being dissipated as heat. In this thesis, a methodology for designing sequential adiabatic circuits employing a single-phase power clock was investigated. Initially, methods to simulate dynamic power were analysed by identifying a better and reliable method to simulate adiabatic dynamic power. In addition, a method to validate the output voltage swing was presented. The relationship between voltage swing and power dissipation was analysed. Then, several adiabatic sequential D flip flops (DFF) designs which make use of combinational adiabatic circuit design based on quasi-adiabatic were proposed and suitable types of alternating current power supply which influence dynamic power were analysed and selected. The functionality and performance of the proposed circuits were compared against other adiabatic and traditional Complimentary Metal-Oxide Semiconductor (CMOS) circuits and verified to function up to 1 GHz operating region. Besides the circuits, the layout of the proposed sequential adiabatic design was also produced. All simulations were carried out using 0.25 ^m CMOS technology parameters using Tanner Electronic Design Aided and HSPICE tools. The findings showed that the proposed combinational circuit had less transistor count, lower power dissipation with lower voltage swing as compared to reference adiabatic circuits. Furthermore, the proposed sequential DFF circuit showed 25% less power dissipation compared to traditional CMOS. 2017-05 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/78950/1/NurulAisyahNadiahMFKE2017.pdf Zainal Abidin, Nurul Aisyah Nadiah (2017) Digital logic circuit design using adiabatic approach. PhD thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:109561 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Zainal Abidin, Nurul Aisyah Nadiah Digital logic circuit design using adiabatic approach |
| title | Digital logic circuit design using adiabatic approach |
| title_full | Digital logic circuit design using adiabatic approach |
| title_fullStr | Digital logic circuit design using adiabatic approach |
| title_full_unstemmed | Digital logic circuit design using adiabatic approach |
| title_short | Digital logic circuit design using adiabatic approach |
| title_sort | digital logic circuit design using adiabatic approach |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utm.my/78950/1/NurulAisyahNadiahMFKE2017.pdf |
| work_keys_str_mv | AT zainalabidinnurulaisyahnadiah digitallogiccircuitdesignusingadiabaticapproach |