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Investigation causes of the premature capacity loss in accumulator for hybrid electric vehicles
Vystrčil, Marek ; Bilko, Radek (referee) ; Bača, Petr (advisor)
This thesis describes the results of two successive experiments. The first was focused on the influence of impurities in the active mass of negative electrode in PSoC (Partial State of Charge) mode, which simulates the conditions occurring in HEV (hybrid electric vehicle). In the second experiment, cells with the same additives were exposed to optimum downforce 4N/cm2, by which we wanted to prove the influence of pressure on life of VRLA (Valve Regulated Lead Acid) cells working in operating HEV conditions.
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VFA and CFA comparison
Vystrčil, Marek ; Hubálek, Jaromír (referee) ; Stehlík, Jiří (advisor)
This bachelor's thesis is focused on comparison of operational amplifiers structures with voltage (VFA) and current (CFA) feedback. In the theoretical part there is an analysis properties of operational amplifiers. Attention is paid to advantages of particular amplifiers in concrete networks. The practical part contains the simulations of those networks with an aim to assess characteristic properties and a difference between applied circuits. I used the operational amplifier µA741 for the simulation of the structure VFA. I used the amplifier AD8011 for the simulation with current feedback. I added the theoretical and practical differences between comparative structures.
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Investigation causes of the premature capacity loss in accumulator for hybrid electric vehicles
Vystrčil, Marek ; Bilko, Radek (referee) ; Bača, Petr (advisor)
This thesis describes the results of two successive experiments. The first was focused on the influence of impurities in the active mass of negative electrode in PSoC (Partial State of Charge) mode, which simulates the conditions occurring in HEV (hybrid electric vehicle). In the second experiment, cells with the same additives were exposed to optimum downforce 4N/cm2, by which we wanted to prove the influence of pressure on life of VRLA (Valve Regulated Lead Acid) cells working in operating HEV conditions.
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VFA and CFA comparison
Vystrčil, Marek ; Hubálek, Jaromír (referee) ; Stehlík, Jiří (advisor)
This bachelor's thesis is focused on comparison of operational amplifiers structures with voltage (VFA) and current (CFA) feedback. In the theoretical part there is an analysis properties of operational amplifiers. Attention is paid to advantages of particular amplifiers in concrete networks. The practical part contains the simulations of those networks with an aim to assess characteristic properties and a difference between applied circuits. I used the operational amplifier µA741 for the simulation of the structure VFA. I used the amplifier AD8011 for the simulation with current feedback. I added the theoretical and practical differences between comparative structures.
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