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THEMIS IDPU PDRPCB- 1 UCB, October 16, 2003 IDPU Power Control Board (PCB) Peter Berg University of California - Berkeley.

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Presentation on theme: "THEMIS IDPU PDRPCB- 1 UCB, October 16, 2003 IDPU Power Control Board (PCB) Peter Berg University of California - Berkeley."— Presentation transcript:

1 THEMIS IDPU PDRPCB- 1 UCB, October 16, 2003 IDPU Power Control Board (PCB) Peter Berg University of California - Berkeley

2 THEMIS IDPU PDRPCB- 2 UCB, October 16, 2003 Overview Power Control Board Overview Requirements Specifications Design Parts Schedule Issues

3 THEMIS IDPU PDRPCB- 3 UCB, October 16, 2003 Requirements IN.PCB-1 The IDPU PCB shall provide power switching as required by the Instrument Payload (ref. IN.DPU-45) Power Switching Requirements InstrumentSwitched Services Required#Notes EFI BoardsDFB: +/-5VA, +/-10VA, 5VD, 2.5VD BEB: +/-5VA, +/-100VA, 5VD, 2.5VD 1Switched on primary side (28V) in LVPS. 1 control line from PCB Actel. Sequencing circuit for 5VD/2.5VD. EFI FloatingBEB: Six floating +/-10VF3Switched on primary side (5V) in pairs in LVPS. 3 control lines from PCB Actel. EFI SPBs (4)Motors: +28VA (+/-6V) Doors (SMAs): +5VA @ 1A 6Motors switched separately. Doors switched in pairs. 6 control lines. EFI AXL (2)Release (SMAs): +5VA @ 1A2Switched separately. 2 control lines. FGM+/-5VA, +/-8VA, 5VD, 2.5VD6Switched separately. 2 control lines. (+5VD/+2.5VD require separate control lines to ensure proper sequencing) SCM+/-10V2Switched separately. 1 control line. Mag BoomFGM: Frangi-Bolt: +28V (+/-6V) SCM: Frangi-Bolt: +28V (+/-6V) 2FGM/SCM booms switched concurrently. 2 nd switch for redundant heating elements. 2 control lines.

4 THEMIS IDPU PDRPCB- 4 UCB, October 16, 2003 Requirements InstrumentSwitched Services Required#Notes ESA MB+/-5VA, +10VA, 5VD4Switched separately. 1 control line. ESA HV+28VA (regulated)54 supplies switched separately. 1 HV Enable. 5 control lines. ESA Actuators Cover (1 SMA): +5VA @ 1A SWA (2 SMAs): +5VA @ 1A 3Switched separately. 3 control lines. Autonomous control of SWA by FSW. SST ADC Board +/-5VA, +28VA, 5VD, 2.5VD5Switched separately. 2 control lines. (+5VD/+2.5VD require separate control lines to ensure proper sequencing) SST Actuators Attenuator (2 SMAs/SST): 5VA @ 1A4Switched separately. 4 control lines. Autonomous control by FSW. TOTALPCB: LVPS: 39 5 Power Switching Requirements, cont. DCB and PCB voltages are not switched (boards are always powered on when the IDPU is powered). Current limited switches on the PCB isolate the DCB and PCB services from the Instrument Payload power services.

5 THEMIS IDPU PDRPCB- 5 UCB, October 16, 2003 Requirements IN.PCB-2 The IDPU PCB shall provide housekeeping functions as required to safely turn-on and operate the Instrument Payload (ref. IN.DPU-16) Housekeeping Requirements MUXHK NameHK Function A1IMON_P10VAInstrument Payload +10VA Current Monitor A2IMON_N10VAInstrument Payload -10VA Current Monitor A3IMON_P5VAInstrument Payload +5VA Current Monitor A4IMON_N5VAInstrument Payload -5VA Current Monitor A5IMON_P8VAInstrument Payload +8VA Current Monitor A6IMON_N8VAInstrument Payload -8VA Current Monitor A7IMON_P5VDInstrument Payload +5VD Current Monitor A8IMON_P2.5VDInstrument Payload +2.5VD Current Monitor B1VMON_P10VAInstrument Payload +10VA Voltage Monitor B2VMON_N10VAInstrument Payload -10VA Voltage Monitor B3VMON_P5VAInstrument Payload +5VA Voltage Monitor B4VMON_N5VAInstrument Payload -5VA Voltage Monitor B5VMON_P8VAInstrument Payload +8VA Voltage Monitor B6VMON_N8VAInstrument Payload -8VA Voltage Monitor B7VMON_P5VDInstrument Payload +5VD Voltage Monitor B8VMON_P2.5VDInstrument Payload +2.5VD Voltage Monitor

6 THEMIS IDPU PDRPCB- 6 UCB, October 16, 2003 C1IMON_P28VRESA HV +28V Regulated Current Monitor C2VMON_P28VRESA HV +28V Regulated Voltage Monitor C3IMON_ACTInstrument Payload +28VA Actuator Current Monitor C4VMON_ACTInstrument Payload +28VA Actuator Voltage Monitor C5IMON_SMAInstrument Payload +4VA SMA Current Monitor C6VMON_SMAInstrument Payload +4VA SMA Voltage Monitor C7FGE_HSK1FGE Housekeeping Analog 1 C8FGE_HSK2FGE Housekeeping Analog 2 D1IMON_EFI BOARDEFI Boards (DFB and BEB) Current Mon (LVPS HSK1) D2IMON_EFI XEFI X-Axis +/-10V Floating Current Mon (LVPS HSK2) D3IMON_EFI YEFI Y-Axis +/-10V Floating Current Mon (LVPS HSK3) D4IMON_EFI ZEFI Z-Axis +/-10V Floating Current Mon (LVPS HSK4) D5IMON_IDPUIDPU +28VA Current Monitor (LVPS HSK5) D6VMON_IDPUIDPU +28VA Voltage Monitor (LVPS HSK6) D7SPARE1Spare Input D8SPARE2Spare Input Housekeeping Requirements, cont. Requirements

7 THEMIS IDPU PDRPCB- 7 UCB, October 16, 2003 Requirements E1SPB1_TURNSSPB1 Motor Turns Count E2SPB2_TURNSSPB2 Motor Turns Count E3SPB3_TURNSSPB3 Motor Turns Count E4SPB4_TURNSSPB4 Motor Turns Count E5SPARE3Spare Input E6SPARE4Spare Input E7TEMP1Temperature 1 Monitor E8TEMP2Temperature 2 Monitor Housekeeping Requirements, cont.

8 THEMIS IDPU PDRPCB- 8 UCB, October 16, 2003 CMD FunctionNotes EFI BOARD ON/OFFCommands all power services to DFB and BEB Boards EFI VF X PWR ON/OFFCommands power service to EFI X Pre-amps EFI VF Y PWR ON/OFFCommands power service to EFI Y Pre-amps EFI VF Z PWR ON/OFFCommands power service to EFI Z Pre-amps EFI SPB X1 MOTOR CNTRCommands SPB X1 motor (Boom deploy) EFI SPB X2 MOTOR CNTRCommands SPB X2 motor (Boom deploy) EFI SPB Y1 MOTOR CNTRCommands SPB Y1 motor (Boom deploy) EFI SPB Y2 MOTOR CNTRCommands SPB Y2 motor (Boom deploy) EFI SPB X DOOR CNTRCommands SPB X1 and X2 SMA Door Actuators EFI SPB Y DOOR CNTRCommands SPB X1 and X2 SMA Door Actuators EFI AXL Z1 DOOR CNTRCommands AXL Z1 SMA Door Actuators (Boom deploy) EFI AXL Z2 DOOR CNTRCommands AXL Z2 SMA Door Actuators (Boom deploy) FGM ON/OFFCommands all power services to FGM (requires sequencing) SCM ON/OFFCommands all power services to SCM IN.PCB-3 The IDPU PCB requires specific operational commands to power the instruments (ref. IN.DPU-17) IN.PCB-4 The IDPU PCB requires separate enable and activation commands for critical instrument functions (ref. IN.DPU-13) Commanding Requirements Requirements

9 THEMIS IDPU PDRPCB- 9 UCB, October 16, 2003 MAG BOOM A DEPLOYCommands primary FGM/SCM mag boom deploy MAG BOOM B DEPLOYCommands secondary FGM/SCM mag boom deploy ESA MB ON/OFFCommands all power services to EFI Mother Board ESA HV ENABLEEnables ESA 28V HV power service ESA HV1 SELECTCommands ESA 28V HV1 power ESA HV2 SELECTCommands ESA 28V HV2 power ESA HV3 SELECTCommands ESA 28V HV3 power ESA HV4 SELECTCommands ESA 28V HV4 power ESA COVER OPENCommands ESA cover open (no command to close) ESA SWA OPENCommands ESA SWA open ESA SWA CLOSECommands ESA SWA closed SST ADC ON/OFFCommands all power services to SST (requires sequencing) SST1,SST2 ATN OPENCommands SST1 or SST2 Attenuator open SST1,SST2 ATN CLOSECommands SST1 or SST2 Attenuator closed PAYLOAD ENABLEEnables power to Instrument Payload Commanding Requirements, cont. Requirements

10 THEMIS IDPU PDRPCB- 10 UCB, October 16, 2003 IN.PCB-5 The IDPU PCB shall share a 6U VME card with FGE (ref. IN.DPU-51) FGE PCB Requirements

11 THEMIS IDPU PDRPCB- 11 UCB, October 16, 2003 Specifications Electrical Specification Captured in THM_PCB_001 revision A Details Power Switching, Housekeeping, and Commanding Requirements Provides connector specifications and pin-outs Electro-Mechanical Specifications Connectors –One VME standard connectors 3x32 format M55302 (Class1) –Three 15-pin D-Sub standard connectors on front panel –Two 26-pin D-Sub high density connectors on front panel Board –Board-to-board Spacing is 0.585” –PCB shares board with FGE

12 THEMIS IDPU PDRPCB- 12 UCB, October 16, 2003 Functional Block Diagram

13 THEMIS IDPU PDRPCB- 13 UCB, October 16, 2003 Parts Active Parts FPGA: Actel 54SX72s FETs: Several candidates; quad N & quad P, TO39 N&P MUX: HS-508 AMUX Flight Part Ordering Long-lead item (FPGA) has been ordered

14 THEMIS IDPU PDRPCB- 14 UCB, October 16, 2003 Schedule TaskDurationStartFinish PCB SPECIFICATION4wThu 9/4/03Wed 10/1/03 1wThu 10/23/03Wed 10/29/03 2wFri 11/7/03Thu 11/20/03 2dFri 12/19/03Mon 12/22/03 Tue 12/23/03Mon 1/5/03 Thu 1/8/03Wed 1/14/03 PCB ETU ASSEMBLY2wThu 1/15/03Wed 1/28/03 PCB ETU TEST2wThu 1/29/03Wed 2/11/04 PCB ETU PART KIT PCB ETU FAB PCB ETU MERGE FGE LAYOUT PCB ETU LAYOUT PCB ETU PARTS LIST 2w 1w

15 THEMIS IDPU PDRPCB- 15 UCB, October 16, 2003 Issues Board Space. Layout not yet completed.

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