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RAA3064002GFP/RAA3064003GFP
The angle signal is generated as a rectangular wave with its phase delayed in proportion to the resolver angle.
Angle information can be obtained by using the MCU to measure the phase difference between the rectangular excitation
wave and angle signal. Figure 4.4 shows the relation of the phase difference between the excitation signal and angle
signal, to the resolver angle.
MCU output
(rectangular excitation wave)
CARRIER input
EXCOUT2 output
EXCOUT1 output
XAN input
V
/2
DD
XAP input
V
/2
DD
XBN input
V
/2
DD
XBP input
V
/2
DD
FAMPOUT output
COUT output
(angle signal)
Figure 4.4 Relation between the Excitation Signal and Angle Signal
R03UZ0002EJ0120 Rev.1.20
Apr 05, 2021
Constant θ
(adjusted by the correction function)
0
Resolver angle θ
+ θ
R
0
4. Operation
Page 33 of 52
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