Part Number: UCC28180 Dears,
Customer would like to ask how to adjust the voltage and current compensation?Now the waveform is always unsatisfactory, zero crossing is not good.
Attachfile show the schematic,pls kindly help to review.
Thanks
UCC28180-anjie…
Part Number: UCC28180 Hi,
My customer would like to verify the UCC28180 output OVP function.
From the datasheet,I know the Vsense pin over 107% of reference will trigger the function.
According my design,resistance Vsense_upper is 1.037M and Vsense_lower…
Part Number: UCC28180 Other Parts Discussed in Thread: UCC28019 , The pspice model is missing pins ( VCC and FREQ).
Can you guys please share the updated model.
Part Number: UCC28180 Other Parts Discussed in Thread: UCC256402 Hi we are using ucc28180 as pfc controller for LLC converter 200W(28V,7A) input :115Vac(85-125V),frequency=400Hz we have first used input frequency of 50Hz.Converter is working fine.Now we…
HI Navroj,
Without the 12VDC bias, the IC will not have power. So nothing will happen. This is essentially skipping step D from the EVM user's guide power up sequence:
I hope this answers your question.
Part Number: UCC28180 Other Parts Discussed in Thread: UCC28070 , Hi Team,
Customer asks for a three-phase interleaved PWM controller, previously, he used our UCC28070.
I heard that UCC28180 can achieve this function but I don't find the Sync Pin of this…
Part Number: UCC28180 Dear Harish,
As discussed, We have done the same modification but observed same result MOSFET hating and power increase at lower input range like 100V AC.
Part Number: UCC28180 In the datasheet on page 32, the current loop gain for the example has a phase margin that is less than or equal to 30deg. Is this a mistake?
I expect the phase margin of a good design to be around 50deg
Part Number: UCC28180 Hello, UCC28180_ACDC_REV1_Values.xls
We are designing a PFC rectifier front end for a 550W LLC converter. The required input and load specifications are entered in the attached UCC28180 design calculator tool.
We are getting a error…