UCC21530: I'm having trouble getting the drain current through the power mosfets using TINA TI

Vempuluru Venkata Poorna Sekhar

Prodigy 190 points

Part Number: UCC21530

hi,

I am having trouble in measuring the drain current through N-channel MOSFETs in buck converter circuit.

Whenever i am trying to do transient analysis it is showing convergence error.

i am not able to figure that out.

i am attaching the circuit.

A quick reply would be appreciable.ammeter error.TSC Thank you.

vempuluru poorna

over 4 years ago

0 Don Dapkus over 4 years ago

TI__Guru**** 189399 points

Hi, Poorna,

Did you get this resolved?

I think Zachary pointed you to this before: https://e2e.ti.com/support/tools/sim-hw-system-design/f/234/p/858375/3180361#3180361

Let us know if you still need help with this.

0 Vempuluru Venkata Poorna Sekhar over 4 years ago in reply to Don Dapkus

Prodigy 190 points

sir,

the circuit zarachy gave me was giving desired output.I just need to measure(plot drain current Vs time) the drain current through the mosfets using ampere meter in TINA TI,it is showing convergence error.

thak you.

poorna

0 Don Dapkus over 4 years ago in reply to Vempuluru Venkata Poorna Sekhar

TI__Guru**** 189399 points

Hi, Poorna,

Zachary is out this week.

Let us know if you get this figured out, otherwise, he can work on it with you next week.

0 Don Dapkus over 4 years ago in reply to Don Dapkus

TI__Guru**** 189399 points

Hi, Poorna, Did you get this resolved? If not, do you have any new information for us?

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UCC21530: I'm having trouble getting the drain current through the power mosfets using TINA TI