Microchip Technology DM330017 Data Sheet
Digital Power Starter Kit User’s Guide
DS52078A-page 26
2012 Microchip Technology Inc.
2.7.2
Boost Converter
The Boost converter stage is rated for a maximum output power of 5W to the dedicated
on-board resistive load. The output voltage and output current should remain within the
Boost converter Safe Operating Area (SOA) to avoid damage to the board, as shown
in the graph in
on-board resistive load. The output voltage and output current should remain within the
Boost converter Safe Operating Area (SOA) to avoid damage to the board, as shown
in the graph in
. The output voltage of the Boost converter (BOOST_Out) can
be programmed to be from an 11V to 18V output, with a default programmed voltage
of 15V. The hardware gain [20k/(20k + 3.3k)] of the voltage feedback from the
BOOST_Out is provided by the resistor divider network of R41 and R51. Additionally,
a 20 Ohm resistor, R30, for bode plot measurements is also in series with the feedback
network. The hardware gain of the current feedback is provided by the current sense
resistor, R61.
of 15V. The hardware gain [20k/(20k + 3.3k)] of the voltage feedback from the
BOOST_Out is provided by the resistor divider network of R41 and R51. Additionally,
a 20 Ohm resistor, R30, for bode plot measurements is also in series with the feedback
network. The hardware gain of the current feedback is provided by the current sense
resistor, R61.
FIGURE 2-5:
BOOST CONVERTER SOA CURVE
2.8
PROGRAMMER/DEBUGGER
The Digital Power Starter Kit includes an on-board programmer/debugger circuit that
provides connectivity over USB. This circuit is hard-wired to the dsPIC DSC device to
provide ICSP™ debugging/programming capability.
provides connectivity over USB. This circuit is hard-wired to the dsPIC DSC device to
provide ICSP™ debugging/programming capability.
2.8.1
Programmer/Debugger Components
describes the programmer/debugger components that are available on the
for component locations).
TABLE 2-8:
PROGRAMMER/DEBUGGER COMPONENTS
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
11
12
13
14
15
16
17
18
19
Output Voltage, V
O
u
tput Cu
rr
en
t, A
Component
Label
Item #
Description
On-Board Programmer/
Debugger
Debugger
N/A
2
Controls the programming/debugging operations of the target
dsPIC33FJ09GS302 DSC.
dsPIC33FJ09GS302 DSC.
Programmer/Debugger
USB Connector
USB Connector
J5
3
Provides power to the programmer/debugger, and bidirectional
communication between the host PC and the Digital Power
Starter Kit.
communication between the host PC and the Digital Power
Starter Kit.