Part Number: UCC28180EVM-573 Other Parts Discussed in Thread: UCC28180 , UCC28070EVM , UC3854 , UCC2818 , UCC28070 , UCC28065 one of TI's tech support that their UCC28180 had been successfully used at the AC line frequency of 400Hz. We obtained their…
Part Number: UCC2819A Other Parts Discussed in Thread: UCC2818 Hello.
I have a question about UCC2819A.
UCC2819A During evaluation, the input voltage and current oscillated, and the PFC coil sounded. Symptoms disappeared by attaching a capacitor to…
Other Parts Discussed in Thread: UCC2818 Hi,
The output pin VFF(pin 8) could be used for measuring the input mains; but the datasheet forUCC2819 is not very clear, so I am referring UCC2818 datasheet.
Voltage could be generated at Vff if we use a…
Hi Yunsheng,
1) You are right. I found that the current amp is saturated distortion when the power above 5kW. So reduce the sensing resistor can fix this issue.
But the problem is the SOC current may exceed 100A, and IPKLMT may exceed 200A, so that…
Hello Ras
The UCC2813 uses an internal reference and compares VREF/2 to the FB signal so by adjusting the scaling of the FB signal you can achieve any duty cycle you need to keep the output voltage in regulation. The main problem is that the UCC2818…
Hello Balakrishna,
2 days ago, you said
Balakrishna Marripati said: No load Mosfet is working well,
Now, the MOSFET seems to be failing, even at no load. The MOSFET only fails when there is some stress that exceeds its ratings, either excess voltage…
Hi, Dox,
I assume you are planning to run the PFC in the continuous conduction mode (CCM). If that is the case, there are many options. However, if you are planning to operate it in transition mode (TM), or sometimes called critical conduction mode…
