Samsung S3F401F - Manual (Page 84)

S3F401F_UM_REV1.00 INVERTER MOTOR CONTROLLER (IMC)
6-5
4. PHASE SIGNAL GENERATION
4.1 TRI-ANGULAR WAVE (IMMODE = 0)
PWMSWAP = 0, PWMPOLU = 0 (Low start), PWMPOLD = 1 (High start)
These phase signals are used when switches of UP side and DOWN side are high active in inverter motor
application. That means one pair switches of UP side and DOWN side don’t have condition with high active at the
same time. So dead time is inserted the following that.
PCCMPR
PBCMPR
(Can be used by ADC trigger signal)
TOPCMP
PACMPF
ADCCMPF0
PACMPR
ADCCMPR0
TOPCMP
ADCCMPF1
PBCMPF
ADCCMPF2
PCCMPF
ADCCMPR1
ADCCMPR2
Figure 6-4. Inverter Motor Controller (IMC) Signal generation (Tri-angular wave)