Sensorless Brushless DC Motor Control with the Z16FMC MCU
Application Note
WDT with
RC Oscillator
POR/VBO
& Reset Control
ADC 10-bit
12-Channel
Comparator
Operational
Amplifier
3 x Timer
ZNEO
20 MHz CPU
Internal Precision
Oscillator
Multi-Channel
PWM Timers
IC
ESPI
2 x LIN-UART
with IrDA
2
DMA
Controller
Interrupt
Controller
Flash
Controller
RAM
Controller
128 KB
4 KB
A
8
B
8
C
8
D
8
E
8
F
1
G
1
H
4
Ports
Number of pins available
Figure 1. The Z16FMC MCU Architecture
In each of the Z16FMC products, the novel device architecture allows for realization of a
number of enhanced control features:
•
•
•
Time Stamp for Speed Control
Integrated Operational Amplifier
Multi-Channel PWM Timer
Time Stamp for Speed Control
Most microcontrollers use at least one dedicated comparator to detect the zero crossing of
the input AC voltage signal so that the output driving pulses can be synchronized and
AN031102-0311
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