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# Date Author Comment
109296da 11/04/2011 04:10 AM Abraham Levkoy

Fixed GND pad on LT3650 charger IC

LT3650 package in kwoo.lbr had a polygon around a through-hole pad to
approximate a large SMD pad connected by a via directly to the ground
plane. Created a new package that is like this one but has no via, just a
normal SMD pad. Used this package in the power test board, which has no...

4327ce8c 11/04/2011 02:57 AM Abraham Levkoy

Updated design rules for power board

Updated design rules for power board to match DorkbotPDX specifications.
This removed some of the DRC errors for the USB port and charger. The
charger still has a couple that may be from inherently illogical
package specification.

d3af95cc 11/04/2011 12:42 AM Abraham Levkoy

Added new charger and pushbutton controller parts

Added LT3650 and LTC2954 to kwoo.lbr. Kevin sent me an updated library
with these parts previously, but I mistakenly did not import them at
that time.

a7a07a86 11/03/2011 11:52 PM Abraham Levkoy

Disapproved DRC errors on power board

Disapproved of previously approved DRC errors for power board. They are
apparently legitimate problems that need to be taken care of.

072e0990 11/03/2011 10:32 PM Yuyang Guo

powerboard placed, needs routing

6bcd5b93 11/03/2011 05:28 AM Abraham Levkoy

Fixed gas gauge and charging components

Added extra decoupling capacitor between battery voltage and ground next
to charging circuit to allow board to run with charger but no battery.
Connected system side of gas gauge sense resistor to GND to make all
current returning to battery go through sense resistor. Removed 0 Ohm...

cbe8706d 11/03/2011 03:34 AM Abraham Levkoy

Added missing components around AVR on power board

Added ISP header, pullup resistor for AVR reset line, and decoupling
capacitors for AVR power lines. Connected ISP header to SPI interface on

cb409f92 11/03/2011 02:37 AM Abraham Levkoy

Finished USB interface on power board

Added decoupling capacitors to FTDI chip, changed signaling VCC from USB
VCC to AVR VCC so that AVR can signal to FTDI chip. Added USBTX and
USBRX signals between FTDI chip and AVR.

8c16f5aa 11/02/2011 07:15 PM Abraham Levkoy

Started to add USB port to power board

Added USB port and USB-UART converter to power board schematic. I think
the converter has enough hooked up to it to run without burning up, but
it's not hooked up the AVR yet.

107d33d7 11/02/2011 05:10 AM Abraham Levkoy

Shorted GND to BATT_GND in power schematic

Connected GND and BATT_GND to eachother using a 0 Ohm resistor. I want
to keep the signals separate to ease routing, but they need to be
connected to ensure that all of the current that needs to go through the
fuel gauge sense resistor does so.

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