Renesas RA6T2 Application Note page 14

Sensorless vector control for permanent magnetic
synchronous motor - 1shunt current detection
2.2.4.2 RA4T1
(1). 12-bit A/D Converter (12ADC)
Phase current (with an 1shunt resistance), inverter bus voltage (Vdc) and rotation speed command (VR1)
are measured in "Single scan mode" (use a hardware trigger).
Detection of the phase current uses FIFO function.
A/D conversion is implemented to be synchronized with carrier synchronized interrupt by using direct link
function to GPT.
(2). Low Power Asynchronous General-Purpose Timer (AGT)
The AGT is used as 1 [ms] interval timer.
(3). General PWM Timer (GPT)
On the channel 1, 2, and 3, output with dead time is performed by using the Triangle-wave PWM mode 3. .
(4). Port Output Enable for GPT (POEG)
The port executing PWM output are set to high impedance state when an overcurrent is detected (when a
low level of the GTETRGB port is detected) .
R01AN6840EJ0100 Rev.1.00
May 23, 2023
Figure 2-9 FSP Configuration of POEG Driver
Figure 2-10 Overall FSP Stacks diagram
For Renesas Flexible Motor Control Series
Page 14 of 73