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A single-stage single-switch LED driver is proposed in this paper. The topology of the converter is formed by integrating buck-boost and Class E circuit by sharing one switch device, which can greatly reduce the cost and improve the reliability of the system. To realize the power factor correction (PFC) function, the buck-boost circuit works in discontinuous conduction mode (DCM). Since the soft switching...
This paper presents an average power balancing control technique for the modular multilevel cascaded converter (MMCC) based on single-star bridge cells (SSBC) in the static synchronous compensator (STATCOM) applications. Detailed power flow analyses of the MMCC-SSBC converter, from the bottoem level of individual H-bridge modules, then the middle level of per-phase circuit, to the top level of the...
The power and energy consumed by a chip have become primary design constraints for embedded systems and are largely affected by software. However, there is a gap between software and hardware that makes it hard to predict which code consumes the least power before running it. Therefore, it is vital to discover which factors affect a program's energy consumption. In this paper we present an instruction-level...
This paper develops a novel reconfigurable architecture, CMOS-nanorelay FPGA (cFPGA) by integrating carbon nanorelays with CMOS devices to function as FPGA components. cFPGA is a highly efficient architecture, providing 2X density and standby power improvement along with a 30% dynamic power reduction as compared with solely CMOS FPGA circuits. This performance improvement is achieved by using 2T1N...
In this paper, a review focused on the control theory of induction machines (IM) is presented. Then, the influences of dead time and voltage drop of switching devices are discussed. Consequently, considering both effects of dead time and voltage drop, an improved stator flux observation strategy for the direct torque controlled (DTC) EVI drive system is proposed. A simulation model is developed and...
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