Simulate H Bridge in Pspice

I want to simulate an H-bridge in pspice but it doesn't work and Z3 and Z6 (High side and low side IGBTs) can not drive at the same time. Here is my schematic

• Refer V6 (and V3) to the emitters of their respective IGBTs. That's what a high-side driver would do. Also, 24V? Isn't that terrifically low for an IGBT application? – TimWescott Dec 18 '18 at 0:19
• @TimWescott What do you mean? Should I increase the value of v6 snd v3?? – ali eskandari Dec 18 '18 at 4:34
• When someone says that a voltage source is "referenced" to a node, they mean that it's - end is connected to that node. It is usual to reference voltage sources to ground, but in this case you need to connect the - end to the relevant IGBT emitter. You need the IGBT to turn on hard without exceeding its maximum $V_{GE}$ rating, even as the emitter voltage rises because it's on the high side of the switch. – TimWescott Dec 18 '18 at 17:54
• Once you have the thing working in simulation, you're then going to need to realize that high-side gate drive in practice. The few times that I've worked with high-side IGBTs, I've used devices that came with companion gate drivers. If you're going to roll your own on a circuit that runs off of a really high voltage rail, then you'll need to do some searching for a circuit that'll get the job done without letting out all the magic smoke. – TimWescott Dec 18 '18 at 17:56