UM-YROTATE-IT-RX62T datasheet(12/54 Pages) RENESAS

12 / 54 page

RX62T

YROTATE-IT-RX62T Motor Control Kit

UM-YROTATE-IT-RX62T Rev.1.00

Page 12 of 51

Jan 15, 2014

clamped with a diode directly connected with the microcontroller power supply, so a suitable series

resistance is needed in the power stage to avoid damages to the board.

c) A further connector (J12) can be used to supply the board from the power stage or vice-versa (making a

short circuit between the pins 1 and 2 of the jumper JP5); also the board 5V can be made available to the

power board (making a short circuit between the pins 3 and 4 of JP5), but not vice-versa, because they are

directly connected to the step-down switching supply of the board. The ground connection is always on, and

it represents the reference for all the interface signals.

In the next figure a simple example regarding how the power board has to be arranged is presented: the power

supply comes from the supply connector, and the supply for power module is derived from it. The external supply is

also used to supply the microcontroller board through the connector J12A (and the jumper JP5 in microcontroller

board); the 5V supply for current sensors and for the signal polarization is derived from the microcontroller board,

through J12A (and JP5). The PWM drive signals are taken from J11A, while the current sensing signals and the bus

voltage measurement are brought to J13A (the phase commutation signals and the temperature sensing signal are

not reported for sake of simplicity).

Please refer to the complete schematics for further details.

UM-YROTATE-IT-RX62T датащи(PDF) 12 Page - Renesas Technology Corp