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LV24- v6 Development System
MikroElektronika
page
7.0. Power supply
The
LV24-33 v6
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 J16 is used as a selector for a power supply source. To make advantage of the
USB power supply, jumper J16 should be placed in the USB position. When using the external power supply, jumper J16 should be
placed in the EXT position. The development system is turned on/off by switching the position of the POWER SUPPLY switch.
Figure 7-1
: Power supply
Figure 7-2
: Power supply source schematic
Powering over an
AC/DC connector
Power supply
voltage regulator
Jumper J16 as a
selector for a power
supply source
AC/DC connector
POWER SUPPLY signal LED
Powering over a
USB connector
POWER SUPPLY switch
USB connector
