12
Development System EasydsPIC6
MikroElektronika
page
6.0. Power supply
The
EasydsPIC6
development system may use one of two power supply sources:
1
. +5V PC power supply through the USB programming cable; and
2
. External power supply source connected to an AC/DC connector provided on the development board.
The MC34063A voltage regulator and Gretz rectifier are used to enable external power supply voltage to be either AC (in the range
of 7V to 23V) or DC (in the range of 9V to 32V). Jumper J7 is used as a selector for a power supply source. To make advantage of
the USB power supply, jumper J7 should be placed in the USB position. When using the external power supply, jumper J7 should be
placed in the EXT position. The development system is turned on/off by switching the position of the POWER SUPPLY switch.
Figure 6-1
: Power supply
Figure 6-2
: Power supply source schematic
Powering over an
AC/DC connector
Powering over a
USB connector
Power supply
voltage regulator
Jumper J7 as a
selector for a power
supply source
AC/DC connector
USB connector
POWER SUPPLY switch
