First the research is conducted on the design of the two-phase sinusoidal power clock generator in this paper. Then the design of the new adiabatic logic circuit adopting the two-phase sinusoidal power clocks--Clocked...First the research is conducted on the design of the two-phase sinusoidal power clock generator in this paper. Then the design of the new adiabatic logic circuit adopting the two-phase sinusoidal power clocks--Clocked Transmission Gate Adiabatic Logic (CTGAL) circuit is presented. This circuit makes use of the clocked transmission gates to sample the input signals, then the output loads are charged and discharged in a fully adiabatic manner by using bootstrapped N-Channel Metal Oxide Semiconductor (NMOS) and Complementary Metal Oxide Semiconductor (CMOS) latch structure. Finally, with the parameters of Taiwan Semiconductor Manufacturing Company (TSMC) 0.25um CMOS device, the transient energy consumption of CTGAL, Bootstrap Charge-Recovery Logic (BCRL) and Pass-transistor Adiabatic Logic (PAL) including their clock generators is simulated. The simulation result indicates that CTGAL circuit has the characteristic of remarkably low energy consumption.展开更多
Since the successful fabrication of two-dimensional(2D)tellurium(Te)in 2017,its fascinating properties including a thickness dependence bandgap,environmental stability,piezoelectric effect,high carrier mobility,and ph...Since the successful fabrication of two-dimensional(2D)tellurium(Te)in 2017,its fascinating properties including a thickness dependence bandgap,environmental stability,piezoelectric effect,high carrier mobility,and photoresponse among others show great potential for various applications.These include photodetectors,field-effect transistors,piezoelectric devices,modulators,and energy harvesting devices.However,as a new member of the 2D material family,much less known is about 2D Te compared to other 2D materials.Motivated by this lack of knowledge,we review the recent progress of research into 2D Te nanoflakes.Firstly,we introduce the background and motivation of this review.Then,the crystal structures and synthesis methods are presented,followed by an introduction to their physical properties and applications.Finally,the challenges and further development directions are summarized.We believe that milestone investigations of 2D Te nanoflakes will emerge soon,which will bring about great industrial revelations in 2D materials-based nanodevice commercialization.展开更多
This paper presents a fully on-chip NMOS low-dropout regulator(LDO) for portable applications with quasi floating gate pass element and fast transient response.The quasi floating gate structure makes the gate of the...This paper presents a fully on-chip NMOS low-dropout regulator(LDO) for portable applications with quasi floating gate pass element and fast transient response.The quasi floating gate structure makes the gate of the NMOS transistor only periodically charged or refreshed by the charge pump,which allows the charge pump to be a small economical circuit with small silicon area.In addition,a variable reference circuit is introduced enlarging the dynamic range of error amplifier during load transient.The proposed LDO has been implemented in a 0.35 μm BCD process.From experimental results,the regulator can operate with a minimum dropout voltage of 250 mV at a maximum 1 A load and Iq of 395 μA.Under full-range load current step,the voltage undershoot and overshoot of the proposed LDO are reduced to 50 and 26 mV,respectively.展开更多
基金Supported by the National Natural Science Foundation of China (No. 60273093)the Natural Science Foundation of Zhejinag Province(No. Y104135) the Student Sci-entific Research Foundation of Ningbo university (No.C38).
文摘First the research is conducted on the design of the two-phase sinusoidal power clock generator in this paper. Then the design of the new adiabatic logic circuit adopting the two-phase sinusoidal power clocks--Clocked Transmission Gate Adiabatic Logic (CTGAL) circuit is presented. This circuit makes use of the clocked transmission gates to sample the input signals, then the output loads are charged and discharged in a fully adiabatic manner by using bootstrapped N-Channel Metal Oxide Semiconductor (NMOS) and Complementary Metal Oxide Semiconductor (CMOS) latch structure. Finally, with the parameters of Taiwan Semiconductor Manufacturing Company (TSMC) 0.25um CMOS device, the transient energy consumption of CTGAL, Bootstrap Charge-Recovery Logic (BCRL) and Pass-transistor Adiabatic Logic (PAL) including their clock generators is simulated. The simulation result indicates that CTGAL circuit has the characteristic of remarkably low energy consumption.
基金supported by the National Natural Science Fund of China(Grant Nos.61875138,61435010,and 61961136001)Science and Technology Innovation Commission of Shenzhen(KQJSCX20180328095501798,JCYJ20180507182047316,KQTD2015032416270385,JCYJ20170811093453105,JCYJ20180307164612205 and GJHZ20180928160209731)+1 种基金Natural Science Foundation of Guangdong Province for Distinguished Young Scholars(2018B030306038)Natural Science Foundation of SZU(No.860-000002110429).
文摘Since the successful fabrication of two-dimensional(2D)tellurium(Te)in 2017,its fascinating properties including a thickness dependence bandgap,environmental stability,piezoelectric effect,high carrier mobility,and photoresponse among others show great potential for various applications.These include photodetectors,field-effect transistors,piezoelectric devices,modulators,and energy harvesting devices.However,as a new member of the 2D material family,much less known is about 2D Te compared to other 2D materials.Motivated by this lack of knowledge,we review the recent progress of research into 2D Te nanoflakes.Firstly,we introduce the background and motivation of this review.Then,the crystal structures and synthesis methods are presented,followed by an introduction to their physical properties and applications.Finally,the challenges and further development directions are summarized.We believe that milestone investigations of 2D Te nanoflakes will emerge soon,which will bring about great industrial revelations in 2D materials-based nanodevice commercialization.
文摘This paper presents a fully on-chip NMOS low-dropout regulator(LDO) for portable applications with quasi floating gate pass element and fast transient response.The quasi floating gate structure makes the gate of the NMOS transistor only periodically charged or refreshed by the charge pump,which allows the charge pump to be a small economical circuit with small silicon area.In addition,a variable reference circuit is introduced enlarging the dynamic range of error amplifier during load transient.The proposed LDO has been implemented in a 0.35 μm BCD process.From experimental results,the regulator can operate with a minimum dropout voltage of 250 mV at a maximum 1 A load and Iq of 395 μA.Under full-range load current step,the voltage undershoot and overshoot of the proposed LDO are reduced to 50 and 26 mV,respectively.