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IDPU Power Control Board (PCB) Peter Berg University of California - Berkeley

IDPU Power Control Board (PCB) Peter Berg University of California - Berkeley. Overview. Power Control Board Overview Requirements Specifications Design Parts Schedule Issues. Requirements.

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IDPU Power Control Board (PCB) Peter Berg University of California - Berkeley

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  1. IDPU Power Control Board (PCB) • Peter Berg • University of California - Berkeley

  2. Overview • Power Control Board Overview • Requirements • Specifications • Design • Parts • Schedule • Issues

  3. Requirements • IN.PCB-1 The IDPU PCB shall provide power switching as required by the Instrument Payload (ref. IN.DPU-45) • Power Switching Requirements

  4. Requirements • 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. MUX HK Name HK Function A1 IMON_P10VA Instrument Payload +10VA Current Monitor A2 IMON_N10VA Instrument Payload -10VA Current Monitor A3 IMON_P5VA Instrument Payload +5VA Current Monitor A4 IMON_N5VA Instrument Payload -5VA Current Monitor A5 IMON_P8VA Instrument Payload +8VA Current Monitor A6 IMON_N8VA Instrument Payload -8VA Current Monitor A7 IMON_P5VD Instrument Payload +5VD Current Monitor A8 IMON_P2.5VD Instrument Payload +2.5VD Current Monitor B1 VMON_P10VA Instrument Payload +10VA Voltage Monitor B2 VMON_N10VA Instrument Payload -10VA Voltage Monitor B3 VMON_P5VA Instrument Payload +5VA Voltage Monitor B4 VMON_N5VA Instrument Payload -5VA Voltage Monitor B5 VMON_P8VA Instrument Payload +8VA Voltage Monitor B6 VMON_N8VA Instrument Payload -8VA Voltage Monitor B7 VMON_P5VD Instrument Payload +5VD Voltage Monitor B8 VMON_P2.5VD Instrument Payload +2.5VD Voltage Monitor 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

  6. C1 IMON_P28VR ESA HV +28V Regulated Current Monitor C2 VMON_P28VR ESA HV +28V Regulated Voltage Monitor C3 IMON_ACT Instrument Payload +28VA Actuator Current Monitor C4 VMON_ACT Instrument Payload +28VA Actuator Voltage Monitor C5 IMON_SMA Instrument Payload +4VA SMA Current Monitor C6 VMON_SMA Instrument Payload +4VA SMA Voltage Monitor C7 FGE_HSK1 FGE Housekeeping Analog 1 C8 FGE_HSK2 FGE Housekeeping Analog 2 D1 IMON_EFI BOARD EFI Boards (DFB and BEB) Current Mon (LVPS HSK1) D2 IMON_EFI X EFI X-Axis +/-10V Floating Current Mon (LVPS HSK2) D3 IMON_EFI Y EFI Y-Axis +/-10V Floating Current Mon (LVPS HSK3) D4 IMON_EFI Z EFI Z-Axis +/-10V Floating Current Mon (LVPS HSK4) D5 IMON_IDPU IDPU +28VA Current Monitor (LVPS HSK5) D6 VMON_IDPU IDPU +28VA Voltage Monitor (LVPS HSK6) D7 SPARE1 Spare Input D8 SPARE2 Spare Input Requirements • Housekeeping Requirements, cont.

  7. E1 SPB1_TURNS SPB1 Motor Turns Count E2 SPB2_TURNS SPB2 Motor Turns Count E3 SPB3_TURNS SPB3 Motor Turns Count E4 SPB4_TURNS SPB4 Motor Turns Count E5 SPARE3 Spare Input E6 SPARE4 Spare Input E7 TEMP1 Temperature 1 Monitor E8 TEMP2 Temperature 2 Monitor Requirements • Housekeeping Requirements, cont.

  8. CMD Function Notes EFI BOARD ON/OFF Commands all power services to DFB and BEB Boards EFI VF X PWR ON/OFF Commands power service to EFI X Pre-amps EFI VF Y PWR ON/OFF Commands power service to EFI Y Pre-amps EFI VF Z PWR ON/OFF Commands power service to EFI Z Pre-amps EFI SPB X1 MOTOR CNTR Commands SPB X1 motor (Boom deploy) EFI SPB X2 MOTOR CNTR Commands SPB X2 motor (Boom deploy) EFI SPB Y1 MOTOR CNTR Commands SPB Y1 motor (Boom deploy) EFI SPB Y2 MOTOR CNTR Commands SPB Y2 motor (Boom deploy) EFI SPB X DOOR CNTR Commands SPB X1 and X2 SMA Door Actuators EFI SPB Y DOOR CNTR Commands SPB X1 and X2 SMA Door Actuators EFI AXL Z1 DOOR CNTR Commands AXL Z1 SMA Door Actuators (Boom deploy) EFI AXL Z2 DOOR CNTR Commands AXL Z2 SMA Door Actuators (Boom deploy) FGM ON/OFF Commands all power services to FGM (requires sequencing) SCM ON/OFF Commands all power services to SCM Requirements • 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

  9. MAG BOOM A DEPLOY Commands primary FGM/SCM mag boom deploy MAG BOOM B DEPLOY Commands secondary FGM/SCM mag boom deploy ESA MB ON/OFF Commands all power services to EFI Mother Board ESA HV ENABLE Enables ESA 28V HV power service ESA HV1 SELECT Commands ESA 28V HV1 power ESA HV2 SELECT Commands ESA 28V HV2 power ESA HV3 SELECT Commands ESA 28V HV3 power ESA HV4 SELECT Commands ESA 28V HV4 power ESA COVER OPEN Commands ESA cover open (no command to close) ESA SWA OPEN Commands ESA SWA open ESA SWA CLOSE Commands ESA SWA closed SST ADC ON/OFF Commands all power services to SST (requires sequencing) SST1,SST2 ATN OPEN Commands SST1 or SST2 Attenuator open SST1,SST2 ATN CLOSE Commands SST1 or SST2 Attenuator closed PAYLOAD ENABLE Enables power to Instrument Payload Requirements • Commanding Requirements, cont.

  10. Requirements • IN.PCB-5 The IDPU PCB shall share a 6U VME card with FGE (ref. IN.DPU-51) FGE PCB

  11. 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. Functional Block Diagram

  13. 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. Task Duration Start Finish PCB SPECIFICATION 4w Thu 9/4/03 Wed 10/1/03 1w Thu 10/23/03 Wed 10/29/03 2w Fri 11/7/03 Thu 11/20/03 2d Fri 12/19/03 Mon 12/22/03 Tue 12/23/03 Mon 1/5/03 Thu 1/8/03 Wed 1/14/03 PCB ETU ASSEMBLY 2w Thu 1/15/03 Wed 1/28/03 PCB ETU TEST 2w Thu 1/29/03 Wed 2/11/04 Schedule PCB ETU PARTS LIST PCB ETU LAYOUT PCB ETU MERGE FGE LAYOUT PCB ETU FAB 2w PCB ETU PART KIT 1w

  15. Issues • Issues • Board Space. Layout not yet completed.

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