3.4
Motor driver connection
gate driver, the
N-channel power MOSFET and the
conditioning circuit based on
.
Motor driving is performed by connecting the motor phases to J3 connector to provide the right PWM modulation
to run the motor, and the quadrature encoder to J10 connector to detect the rotor position.
The power stage also includes a small circuit with a power MOSFET activated by the microcontroller to discharge
the demagnetization energy during the deceleration phase, through external 2x10 Ω, 25 W resistors connected in
parallel with J4.
Figure 21.
Motor driver
2 x 10Ω 25W
Brake Resistor
Quadrature encoder
Motor phases
UM2807
Motor driver connection
UM2807
-
Rev 1
page 15/40
