Abstract: Electric vehicles (EVs) use an Auxiliary Power Module (APM) as a replacement for the alternator in conventional internal combustion engine vehicles. APM takes input power from high voltage (HV) battery and provides output power to charge low voltage (LV) battery and drive the auxiliary loads. For the APM with high input voltage galvanic isolation is a requirement. Soft-switched topologies offer better efficiency and EMI performance. This paper presents selection of suitable topology for such an APM operating within an inputvoltage range of 82.5 V to 126 V. The design procedure and mathematical computation are likewise incorporated. Thedesigned converter has efficiency of 94%.

• Publication Date: 11-Dec-2022
• DOI: 10.15224/ 978-1-63248-195-5-18
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Abstract: The known gyroscope theory based on principle of the rate change in the angular momentum of a spinning rotor. Practice demonstrates this mathematical model cannot describe other gyroscope effects and shows that there are other unsolved problems, which is spawned steady myth of the gyroscope mystery. These phenomena attract new researchers to solve gyroscope problems. The nature of gyroscope effects is more complex than represented in publications and known mathematical models do not match the actual motions and forces of the gyroscope effects. Latest studies of forces that involved in motions of a gyroscope demonstrate that there are four dynamical components, which act simultaneously and interrelated. The gyroscope with the external torque applied is experienced the resistance torque generated by the centrifugal and Coriolis forces and the precession torque generated by the inertial forces and the rate change of the angular momentum of the spinning rotor. These four dynamical componen

• Publication Date: 21-Dec-2014
• DOI: 10.15224/978-1-63248-037-8-85
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