Difference between revisions of "Upd pcb"

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[[PFMENU DOCS]]  [[Aiw_hardware]]  [[iochan]]  [[AIW_assembly]]
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*{{pf_top_nav}}
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*{{pf_pcbs}}
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*{{T_lab_pca}}
  
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[http://spreadsheets.google.com/ccc?key=pEGTTiU82ZMFMZ9b0b1jPRA&hl=en Gmail Powerfoot tracker]
 
  
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=[[Upd_2x0_218_controller | State/Motor Controller (218)]]=
  
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=State / Motor Controller=
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=[[Upd_2x0_217_power_board | FET/POWER board  (217)]]=
  
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[[Upd_218_controller | State/Motor Controller (218)]]
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=[[Upd_219_imu | IMU]]=
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=[[rev200_mods]]=
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=[[AKENC]]=
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=Lab bench Support=
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*[[pser2h]] [[pser2h-b]] : dual channel isolated programmer
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*[[pser1]] : dsPIC programmer
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*[[FUPs]] : FUP interpose
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*[[loadwasher]] : Load washer circuit
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*[[lifefix]] : Lift fixture
  
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=Power Board=
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=Wifi radio (SWIFI) and BT =
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[[Upd_217_power_board | FET/POWER board  (217)]]
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*[[Wip4c | WIP4c]]
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*[[Wip4a-spi | WIP4a w/spi]]
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*[http://scripts.mit.edu/~biomechatronics/wiki/index.php?title=Lantronics_WiPort Wiport Config]
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*[[Upd_1x0_246_bluetooth]]
  
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=IMU=
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=Voltage Clamps=
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*[[Vclamp8]] : analog PFET clamp
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*[[dclamp1]] : passive and digital
  
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=Blue radio=
 
  
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=Wifi radio=
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=Rev 1x0 State / Motor Controller=
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[[Upd_218_controller | State/Motor Controller (218)]]
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* 6 known
  
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=VCLAMP8=
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=Rev 1x0 Power Board=
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* The P-FET is static sensitive.  
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[[Upd_217_power_board | FET/POWER board (217)]]
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* 7 known (including 2 from UPD)
  
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==testing==
 
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* use the smaller MPJA supplies for the test
 
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* limit the power supply current to ~100mA 
 
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* apply 27V - you should see no load current
 
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* (for 1sec) apply 28V - you should see supply voltage drop to ~27.5 - and see 100mA of load current
 
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* the clamp P-FET is not well heat sunk and applying a load current will overheat it.
 
  
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==common failures==
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=Blue radio=
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* the power resistor fails - typcial it fails "open".  With an ohm meter it should measure ~1 ohm.
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???
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* the power transistor fails - typically the drain to source is shorted (it should be an open circuit when tested with an ohm meter).  Also the gate fails.  It should also be an open circuit to the other pins.  When failed it has measured between 100 and 200 ohms.
 

Latest revision as of 20:29, 16 March 2014

Edit

Edit


State/Motor Controller (218)

FET/POWER board (217)

IMU

rev200_mods

AKENC

Lab bench Support

Wifi radio (SWIFI) and BT

Voltage Clamps


Rev 1x0 State / Motor Controller

State/Motor Controller (218)

  • 6 known

Rev 1x0 Power Board

FET/POWER board (217)

  • 7 known (including 2 from UPD)


Blue radio

???

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