Hybrid Vision Perception for Low-Cost Autonomous Vehicle Navigation. [PDF]
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VIDEO-Visual Integration of Drosophila Enhancer Organization: a tool for integrating and visualizing chromatin accessibility, in vivo transcription factor binding and motif occurrence in tissue-specific differentially expressed genes. [PDF]
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Extending the prototype willingness model to daily life: examining risk-conducive contexts and drinking among adolescents and young adults. [PDF]
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Dataset for system identification of an automated self-inflating bag resuscitator under varying test-lung mechanics. [PDF]
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The real-time control of the operation of an electric vehicle made by the on-board control units requires measurements on different types of power signals from the DC power supply of the batteries to the PWM signals with which the inverter powers the engine.
Cipolletta G. +4 more
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Analysis of PWM Frequency Control to Improve the Lifetime of PWM Inverter
IEEE Transactions on Industry Applications, 2009Studies have shown that the power cycling Mean Time to Failure (MTTF) of the IGBT bond wire in an adjustable speed drive (ASD) may be very short under some very common conditions. This paper proposes a switching frequency reduction method based on junction temperature variation (ΔTj) of the inverter IGBT. It has the following advantages.
null Lixiang Wei +2 more
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Sectionalized PWM (S-PWM): A new multilevel modulation strategy
2008 IEEE International Symposium on Circuits and Systems, 2008The paper presents a novel multilevel PWM strategy that employs a split section reference waveform with phase-shifted carriers to produce harmonically superior PWM signals. The multilevel PWM switching patterns provide a higher dynamic range than what has been reported in the literature.
Hirak Patangia, Dennis Gregory
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FPGA implementation of PWM pattern generators [for PWM invertors]
Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555), 2002Pulse width modulation is used in power converters to modulate a reference signal into gating pulses for IGBT switches. This conversion can be carried out using analog circuits or digital circuits, such as DSPs and microcontrollers. A more efficient and faster solution is the use of field programmable gate arrays (FPGA).
null Dan Deng, null Su Chen, G. Joos
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