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== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_RCL [<OpenLab-Printed Circuit Boards - Signal Processing Hardware (RCL-Multimeter)] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_logic [OpenLab-printed Circuit Boards - Signal Processing Hardware (Logic Analyzer)>]
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{empty} +
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The hardware platform of the voltage/current (U/I) Source
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basically consists of a low-cost microcontroller and a Sepic
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converter circuit. Figure 6 shows the hardware block diagram
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of the U/I Source circuit.
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The PC application communicates via USB with a low-cost,
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Cortex-M3 microcontroller LPC1343 [11] from NXP [12].
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This microcontroller features, besides standard μC peripherals,
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a built-in USB bootloader mode, which enables students, in
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case of a firmware update, to upgrade the μC firmware by
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themselves.
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The Sepic converter circuit is built upon discrete components,
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which helps students to understand, how converter
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circuits are operating. Hence, the inductor current, the diode
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current, the output current, and the output voltage is measured
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by current monitors. The sample data of these currents is
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transmitted to the PC application and displayed within a graph.
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This additional feature enables students to investigate the
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operating modes of the Sepic converter circuit. As part of
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the research process, courses at the university were precisely
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analyzed. The result of this analysis is represented in Table IV.
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The U/I Source is USB powered and features standard
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laboratory output connectors to supply an external load. Furthermore,
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this device is as small as a standard credit card,
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which makes it easy to transport. The PC application, which
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is used to configure the hardware platform and to display the
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measured currents & voltages, is described in section IX-D.
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== Bibliography +
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. NXP: _UM10375 LPC1311/13/42/43 User manual Rev. 5_ [Online] https://www.nxp.com/docs/en/user-guide/UM10375.pdf
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. NXP: _NXP microcontrollers product page_ [Online] https://www.nxp.com/products/processors-and-microcontrollers:MICROCONTROLLERS-AND-PROCESSORS
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{empty} +
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== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_RCL [<OpenLab-Printed Circuit Boards - Signal Processing Hardware (RCL-Multimeter)] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_logic [OpenLab-printed Circuit Boards - Signal Processing Hardware (Logic Analyzer)>] |
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\ No newline at end of file |
