| Attributes | Values |
|---|
| rdf:type
| |
| Description
| - The short-term mission electronics for the Low Earth Orbits (LEO) spacecrafts can be based on the Commercial Off-The-Shelf (COTS) components reducing significantly the total budget. The COTS parts are not usually radiation tolerant, but with certain approaches it can survive higher radiation doses enough to meet the mission requirements. The CzechTechSat is a student scientific project planned by the Czech Technical University in Prague, Czech Republic. Its purpose is to build a university picosatellite platform based on 2U CubeSat form factor to demonstrate approaches for mitigation of radiation influences on onboard electronic systems. Project is held on occasion of the QB-50 CubeSat mission. The aim of this paper is to present circuit design approaches of the Maximum Power Point Tracking regulator; Current-Mode DC/DC converter with over current protection, undervoltage lockout and voltage feedback regulation; low power Mission Computer with external Magnetoresistive RAM and ADCS electronics with magnetotorquers and reaction wheel drivers and sun sensors interfaces. Finally the autonomous switching mechanism for cold-redundant systems is introduced to be employed to prolong the functionality of the respective system. In the experiment we propose using of a three monitored identical electronic systems (e.g. COTS GPS receiver, AMR magnetometer, etc.). One fully stand-alone, and two cold-redundant equipped by the switching mechanism. Total time of operation will be measured and compared each other and with identical devices tested in the laboratory.
- The short-term mission electronics for the Low Earth Orbits (LEO) spacecrafts can be based on the Commercial Off-The-Shelf (COTS) components reducing significantly the total budget. The COTS parts are not usually radiation tolerant, but with certain approaches it can survive higher radiation doses enough to meet the mission requirements. The CzechTechSat is a student scientific project planned by the Czech Technical University in Prague, Czech Republic. Its purpose is to build a university picosatellite platform based on 2U CubeSat form factor to demonstrate approaches for mitigation of radiation influences on onboard electronic systems. Project is held on occasion of the QB-50 CubeSat mission. The aim of this paper is to present circuit design approaches of the Maximum Power Point Tracking regulator; Current-Mode DC/DC converter with over current protection, undervoltage lockout and voltage feedback regulation; low power Mission Computer with external Magnetoresistive RAM and ADCS electronics with magnetotorquers and reaction wheel drivers and sun sensors interfaces. Finally the autonomous switching mechanism for cold-redundant systems is introduced to be employed to prolong the functionality of the respective system. In the experiment we propose using of a three monitored identical electronic systems (e.g. COTS GPS receiver, AMR magnetometer, etc.). One fully stand-alone, and two cold-redundant equipped by the switching mechanism. Total time of operation will be measured and compared each other and with identical devices tested in the laboratory. (en)
|
| Title
| - The CzechTechSat Project - Experimental University 2U-Format Picosatellite
- The CzechTechSat Project - Experimental University 2U-Format Picosatellite (en)
|
| skos:prefLabel
| - The CzechTechSat Project - Experimental University 2U-Format Picosatellite
- The CzechTechSat Project - Experimental University 2U-Format Picosatellite (en)
|
| skos:notation
| - RIV/68407700:21230/12:00195225!RIV13-MSM-21230___
|
| http://linked.open...avai/predkladatel
| |
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21230/12:00195225
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - CubeSat; DC/DC Converter; On-Board Computer (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Pačes, Pavel
- Papaj, Jan
- Laifr, Jaroslav
- Houštecký, Lukáš
- Plaček, V.
|
| http://localhost/t...ganizacniJednotka
| |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)