Hello all,
I am stuck on problem to drive these IRS 184 and IRS21844 driver for my IGBT/MOSFET. I tried using comparator and OPTOcoupler and the signal from my function generator without success. The LSTTL is lower powered then the TTL output. I read some articles how the circuit would look around this output but I found no device to convert the signal off the shelve. To drive direct is causing shortage issues on the MOSFET/IGBT because both channels for inverted and non-inverted are on or off at the same time and very low performance at higher frequencies around 800 KHz and higher. I want the amplifier stage to use for higher frequencies rather then motor control. If all fails I will use two signal generators with delayed pulse output for both driver (TC4420 and TC4429). Ideally the correct signal would be perfect. Any advice?
I am stuck on problem to drive these IRS 184 and IRS21844 driver for my IGBT/MOSFET. I tried using comparator and OPTOcoupler and the signal from my function generator without success. The LSTTL is lower powered then the TTL output. I read some articles how the circuit would look around this output but I found no device to convert the signal off the shelve. To drive direct is causing shortage issues on the MOSFET/IGBT because both channels for inverted and non-inverted are on or off at the same time and very low performance at higher frequencies around 800 KHz and higher. I want the amplifier stage to use for higher frequencies rather then motor control. If all fails I will use two signal generators with delayed pulse output for both driver (TC4420 and TC4429). Ideally the correct signal would be perfect. Any advice?