Difference between revisions of "Loadwasher"
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=connections to SC= | =connections to SC= | ||
| − | *depending on the PCA assembly, it is possible to use either one, or both the connections to the SC. | + | *depending on the specific PCA assembly, it is possible to use either one, or both the connections to the SC. |
| − | *if both connections are made, no ECOs are needed to the SC, and power for the SC side of the PCA is provided from the SC without local support circuitry. | + | *if both connections are made, no significant ECOs are needed to the SC, and power for the SC side of the PCA is provided from the SC without local (PCA) support circuitry. |
==battery dataport== | ==battery dataport== | ||
| − | *in this case, no (significant) mods are required to the SC - the load-washer signal is read via the batt-temp signal | + | * requires a 5 position, 1.0mm cable, double ended. We can build this. |
| − | *assuming the battery measurement ECO has been made to the SC, this connection can also provide power to the SC side of the PCA | + | *in this case, no (significant) mods are required to the SC - the load-washer signal is read via the batt-temp signal. Possibly R102 or C73 would be change to change the cut-off frequency, which is normally 160hz. |
| − | + | ||
| + | *assuming the battery measurement ECO has been made to the SC, this connection can also provide power to the SC side of the PCA; however - several more devices need to be populated on the SC side of the PCA to provide power unless the 2nd cable is attached. | ||
==linear spring connection== | ==linear spring connection== | ||
| − | * | + | * requires a 5 position, 0.8mm cable, double ended. |
| − | * advantage is that the SC 3.0V ref powers the SC side of the PCA | + | * significant SC ECOs are required : |
| + | ** remove R17 | ||
| + | ** Remove R138 | ||
| + | ** Change value of C95 from 0.1uF to 10nF | ||
| + | ** Jumper wire from TP72 to TP56 | ||
| + | |||
| + | * advantage is that the SC 3.0V ref powers the SC side of the PCA, and also both the SC and the MC see the loadwasher signal | ||
Revision as of 02:54, 10 July 2009
connections to SC
- depending on the specific PCA assembly, it is possible to use either one, or both the connections to the SC.
- if both connections are made, no significant ECOs are needed to the SC, and power for the SC side of the PCA is provided from the SC without local (PCA) support circuitry.
battery dataport
- requires a 5 position, 1.0mm cable, double ended. We can build this.
- in this case, no (significant) mods are required to the SC - the load-washer signal is read via the batt-temp signal. Possibly R102 or C73 would be change to change the cut-off frequency, which is normally 160hz.
- assuming the battery measurement ECO has been made to the SC, this connection can also provide power to the SC side of the PCA; however - several more devices need to be populated on the SC side of the PCA to provide power unless the 2nd cable is attached.
linear spring connection
- requires a 5 position, 0.8mm cable, double ended.
- significant SC ECOs are required :
- remove R17
- Remove R138
- Change value of C95 from 0.1uF to 10nF
- Jumper wire from TP72 to TP56
- advantage is that the SC 3.0V ref powers the SC side of the PCA, and also both the SC and the MC see the loadwasher signal
