Difference between revisions of "Upd 2x0 217 power board"
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== 200-217-006== | == 200-217-006== | ||
*4-2-09 : offsets 3001, 2990 | *4-2-09 : offsets 3001, 2990 | ||
| − | *4-2-09 : started bench test at 3:20 am | + | *4-2-09 : started bench test at 3:20 am, completed 2pm - works well |
== 200-217-009== | == 200-217-009== | ||
Revision as of 18:52, 2 April 2009
Contents
FET 2x0-217 PCA
200-217-001
- 3-28-09 : removed from AK-WB2 w/exploded power FET
todo
- remove damaged power fet
- test other power fets (safety fets are on and will complicate this.)
- if all other tests are positive, apply 10 volts with a 100mA current limit
- if successful, attach to state controller with "testjig" software build and apply 20V limited to 200mA
- if successful replace missing FET and repeat above power tests.
200-217-005
- 3-1-09 : Vclamp circuit failed (permanently on) when MPJA power supplied failed.
todo
- replace PFET and power resistor
200-217-006
- 4-2-09 : offsets 3001, 2990
- 4-2-09 : started bench test at 3:20 am, completed 2pm - works well
200-217-009
- 4-1-09 : removed from WB1 - possibly damaged
- 3-28-09 : measured battery voltage at zero and 1.8 volts
- 3-28-09 : measured terminal to terminal resistance of safety FETs, 38 and 72 ohms
- 3-1-09 : safety fets are not engaged.
todo
- replace coin cells (use adhesive to secure batteries to PCA)
200-217-010
- 4-2-09 : measured coin cells at 2.7++ each.
- 4-2-09 : bench test for 1.5 hrs with 218-010
