Hello and thank you very much for reading my post and trying to help.
I am making a 3KW induction heater, using this resonant oscillator circuit:
https://drive.google.com/file/d/1-qKvyTg_fSOSFhRa2nMBaJ3y8fZ00i-p/view
However, I would like to remove the current gate circuitry and control the MOSFET gates using a driver circuit which can be frequency controlled by an MCU (I do some AVR Microcontroller programming).
I found a High speed Half bridge MOSFET driver:
https://datasheets.maximintegrated.com/en/ds/MAX15018-MAX15019.pdf
and thought it would fit the bill. However the H bridge uses the concept of High side and low side, and the induction heater circuit is designed as common drain. So I can't see ( don't have enough knowledge...) how to make connections from the Half Bridge driver to the MOSFET gates. Perhaps it can't be done with MOSFETs in common drain config?
My knowledge of this kind of power circuit is not all that good, my main area of expertise is in using sensors, digital signal processing and stepper motor control as a hobbyist.
I've done quite a lot of reading around power MOSFETS and I understand that if the gate switching is not controlled properly he MOSFETS are like;y to be destroyed.
Many thanks for any advice on an Interface between and MCU and the MOSFETS.
Paul
I am making a 3KW induction heater, using this resonant oscillator circuit:
https://drive.google.com/file/d/1-qKvyTg_fSOSFhRa2nMBaJ3y8fZ00i-p/view
However, I would like to remove the current gate circuitry and control the MOSFET gates using a driver circuit which can be frequency controlled by an MCU (I do some AVR Microcontroller programming).
I found a High speed Half bridge MOSFET driver:
https://datasheets.maximintegrated.com/en/ds/MAX15018-MAX15019.pdf
and thought it would fit the bill. However the H bridge uses the concept of High side and low side, and the induction heater circuit is designed as common drain. So I can't see ( don't have enough knowledge...) how to make connections from the Half Bridge driver to the MOSFET gates. Perhaps it can't be done with MOSFETs in common drain config?
My knowledge of this kind of power circuit is not all that good, my main area of expertise is in using sensors, digital signal processing and stepper motor control as a hobbyist.
I've done quite a lot of reading around power MOSFETS and I understand that if the gate switching is not controlled properly he MOSFETS are like;y to be destroyed.
Many thanks for any advice on an Interface between and MCU and the MOSFETS.
Paul