Design and Implementation of On-board Electrical Power ... - OUFTI-1

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Appendix CPictures of the prototypesFigure C.1: Prototype of the shunt regulator.110
Figure C.2: Prototype of the protection circuit.Figure C.3: Engineering model of the EPS card.111
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AcknowledgementsI want to thank the
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Contents1 Introduction 91.1 Cubesat
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4.4.2 Mean case . . . . . . . . . .
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B Power budget worksheet 106C Pictu
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design and the tests are delegated
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Chapter 2Requirements of the EPS2.1
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• The Single-Event Upset (SEU)Thi
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the P-POD. RBF pins must fit within
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Figure 2.6: Top view of the PC104 c
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Chapter 3Design of EPS architecture
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• Voltage (4) and current (5) at
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Figure 3.6: The equivalent circuit
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of our Lithium-Polymer batteries va
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Figure 3.12: I-V curve of a solar p
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3.3.3 CapacityA important value to
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Parameter SLPB723870H4 SLPB554374HN
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of the batteries is kept between -2
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Over Charge Prohibition 4.275 ± 0.
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supplied in 5V. The circuit will be
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Chapter 4The Power Budget4.1 Introd
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Figure 4.1: P-V curve of a solar pa
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4.3.2 Efficiency of convertersTo at
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Figure 4.3: Consumptions in % in me
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Chapter 5Electrical Design of EPS5.
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V outV in= D. (5.1)Since D ≤ 1, t
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The power losses in the inductor ar
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∆i L,1 + ∆i L,2 = 0, (5.16)V in
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Using the value of ∆i L given by
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There is no data about the case to
Page 60 and 61: Capacitor selectionFour 10µF ceram
Page 62 and 63: • Output voltage: 5V.• Maximum
Page 64 and 65: Figure 5.12: Burst mode operation (
Page 66 and 67: Figure 5.14: Simplified schematics
Page 68 and 69: Figure 5.15: Worksheet for 3.3V con
Page 70 and 71: sequently, the k was chosen above 0
Page 72 and 73: where G 1 is the initial control-to
Page 74 and 75: Figure 5.21: Measured Bode diagram
Page 76 and 77: Figure 5.26: Equivalence between th
Page 78 and 79: C f =12πf f R 0f,L f = R 2 0f C f
Page 80 and 81: Figure 5.37: Schematics of the firs
Page 82 and 83: R KR >1.45V100mA − 1.3A35= 23.07
Page 84 and 85: The schematics is shown on figure 5
Page 86 and 87: A commercial model meets all requir
Page 88 and 89: Figure 5.45: Schematics of the heat
Page 90 and 91: PrefixX7X5Y5Z5SuffixTemperature ran
Page 92 and 93: 6.2.1 The second dissipation system
Page 94 and 95: • The antenna deployment system.
Page 96 and 97: 6.3.3 TestsThe engineering model of
Page 98 and 99: 7.3 ActivitiesAs OUFTI-1 is designe
Page 100 and 101: 8.1.2 DesignA model of Li-Po batter
Page 102 and 103: [15] Fabien Jordan, Phase B Electri
Page 104 and 105: TaK = 273 + TaC;%Photo-current ther
Page 106 and 107: Appendix BPower budget worksheetIn
Page 108 and 109: 108
Page 112 and 113: Appendix DSchematics of the enginee
Page 114 and 115: 876543213V3 CONVERTER AND INPUT FIL
Page 116: 87654321ANTENNA DEPLOYMENT CIRCUITB
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