herher
Newbie level 4
Hi all,
Currently I need to build a buck converter and a buck boost converter for my project.
I am going to use IRF540N MOSFET as the switch of the converter and IR2110 mosfet driver to fire the pwm signal sent from a logic 5V microcontroller to drive the mosfet. From what I have read from the relevant threads in this forum, I know that I need to use high I/O drive pin instead of low I/O drive pin of IR2110 for buck & buck boost converters as the source of the mosfet in these circuit are not directly connected to ground.
So, I would like to ask if it is possible to use only high drive pin of IR2110 to achieve the switching of the converter? I have seen a lot of answers from the threads in different forums suggest the user to use both drive of the driver (half bridge) to switch the converters. But I would like to do the switching with only one pwm signal and one side (high sides) drive, is it possible to achieve this?? What should be the connection of the circuit then??
Another question here...what should be used as the load for the mentioned converters?? Can it be a normal a quarter watts resistor. I have burned several this type of resistors with my circuit (boost converter [another circuit]). Is it better to use higher watts resistor???
Please help. Thank you very much.
Regards,
Currently I need to build a buck converter and a buck boost converter for my project.
I am going to use IRF540N MOSFET as the switch of the converter and IR2110 mosfet driver to fire the pwm signal sent from a logic 5V microcontroller to drive the mosfet. From what I have read from the relevant threads in this forum, I know that I need to use high I/O drive pin instead of low I/O drive pin of IR2110 for buck & buck boost converters as the source of the mosfet in these circuit are not directly connected to ground.
So, I would like to ask if it is possible to use only high drive pin of IR2110 to achieve the switching of the converter? I have seen a lot of answers from the threads in different forums suggest the user to use both drive of the driver (half bridge) to switch the converters. But I would like to do the switching with only one pwm signal and one side (high sides) drive, is it possible to achieve this?? What should be the connection of the circuit then??
Another question here...what should be used as the load for the mentioned converters?? Can it be a normal a quarter watts resistor. I have burned several this type of resistors with my circuit (boost converter [another circuit]). Is it better to use higher watts resistor???
Please help. Thank you very much.
Regards,