Bootsrep capacitors charging only during low side mosfet switching on. So this schematic will never work in static mode. Low side mosfets usually controlled by PWM. And I don't see current sensors anywhere. You planning to use passive mode only? No feedback?
With this schematic we can't. PWM will discharge capacitors very soon.
I don't understand what's the actual VDD and VCC voltage.Inputs given to the ic
Vdd-5v/12v
Vcc-Vdd
Vss-Gnd
SD-GND
Hin-PWM
Lin-Gnd
Com-Gnd
I see your point. A BLDC can be driven with only low side PWM and high side switched according to rotor angle, controlled e.g. by hall sensors. Problem is however that the bootstrap circuit can't start from zero speed without an auxiliary charge pump supply.No reason to use PWM for HI side transistors. No reason to use complementary PWM with current schematics. Just 3 PWM channels and 3 GPIO. And timer interrupt to change duty cycle and pin state.
How to generate complementary PWM signals and deadtime using lpc 1343?
IR2110 already provide some deadtime.
then what should i do for generating complementary pwm signals?
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