Hi nEE,
Agreed, ref the pulse source/s.

The TS indicated he required a longer 'dead-time' between the output pluses across the load inductor, than the inbuilt dead-time.
E

Then the TS needs the programmable dead-time version of the chip (IR21844).

 

Here is a simulation using LTspice 24.1.10.
I've reworked your schematic. The load inductor vs resistance values didn't seem correct, so I changed the Inductor to a resistive load for demonstration purposes. Simulation completes within 17 seconds.

View attachment 357104View attachment 357103

Hi EE,
i am not quite sure i understand correctly, are you saying that this circuit should work fine if i connect both IN of the IR2194s to the same pulse?
E

 

Then the TS needs the programmable dead-time version of the chip (IR21844).

Hi EE,
how do i program the dead time of the IR2184s?
E

 

What are you going to use this circuit for? Be specific.
If its to drive a motor, what kind of motor?

 

What are you going to use this circuit for? Be specific.
If its to drive a motor, what kind of motor?

Hi EE,
I am using this circuit to drive a 40Khz ultrasonic transducer. it can only run on 140Vpp.
e

 

Here is a version that uses the IR21844.
I have the DT pin grounded. It provides a default DT of 400nS. The DT can be programmed by connecting a resistor between the DT pin and ground. There is a chart on the datasheet that shows DT vs resistor values. Note the master clock is 80khz since the FF divides by 2.

 

Hi EE,
how do i program the dead time of the IR2184s?
E

You can't. It's not programmable.