I am trying to produce an inverting wave(square wave) within the range 5V to 25V and frequecy range is from 1Hz to 15Hz. My input is lipo battery with battery range 3.6V to 4.2V and have boosted that to control and produce the required voltage.I am using IXDF604 (low side driver u201) with inverted outputs to drive N channel mosfets FDD8447 in h bridge configuration. My application is on human skin which is not inductive but capacitive load.
Using only the low side which i am using throughout this discussion, unfortunately I get the following wave at load with sound from gate driver when capacitor c202 in parallel with the load resistor R203. If I remove the capacitor the sound goes away but wave is more bulging that the given wave. How can I get this wave bulge solved without sound?
I have been suggested to use IR2110 Full bridge driver as I lack a high side bootstrap circuit but unfortunately I cannot use it as most drivers are designed on motor applications requiring high power. To be specific most high side drivers have to get +10v on the floating offset to give floating absolute voltage. I have already fried many ir2110s. Considering I give the boosted voltage suppose 8V to get something similar but less than 8V at the output How will I be able to give the +10V required to the bootstrap circuit?
Using only the low side which i am using throughout this discussion, unfortunately I get the following wave at load with sound from gate driver when capacitor c202 in parallel with the load resistor R203. If I remove the capacitor the sound goes away but wave is more bulging that the given wave. How can I get this wave bulge solved without sound?
I have been suggested to use IR2110 Full bridge driver as I lack a high side bootstrap circuit but unfortunately I cannot use it as most drivers are designed on motor applications requiring high power. To be specific most high side drivers have to get +10v on the floating offset to give floating absolute voltage. I have already fried many ir2110s. Considering I give the boosted voltage suppose 8V to get something similar but less than 8V at the output How will I be able to give the +10V required to the bootstrap circuit?