Microchip Technology AC164133 Data Sheet
Buck/Boost Converter PICtail™ Plus Daughter Board User’s Guide
DS70336A-page 22
© 2008 Microchip Technology Inc.
FIGURE 2-6:
FEEDBACK JUMPERS
2.4.2.1
HARDWARE
The following hardware changes are required in the Daughter Board to enable control
of the Buck 1 and Boost stage:
of the Buck 1 and Boost stage:
• Jumper J12 and J13: Open
• Jumper J14 and J15: Short with jumper header (close)
2.4.2.2
SOFTWARE
The following additional changes in software are required to enable control of the Buck
1 and Boost stage:
1 and Boost stage:
• Boost Current feedback through analog input channel (AN2)
• Boost Voltage feedback through analog input channel (AN3)
• Boost PWM output (PWM3H)
• PWM2 output pin must be controlled by I/O port and driven low
J12
J13
J14
J15
Note:
The software file Buck1 Voltage Mode with 28P Starter Board
on the Buck/Boost Converter PICtail Plus Daughter Board CD only provides
control for the Buck 1 stage.
on the Buck/Boost Converter PICtail Plus Daughter Board CD only provides
control for the Buck 1 stage.