Power ManagementのトピックRe: TEA1753 PFC performance https://community.nxp.com/t5/Power-Management/TEA1753-PFC-performance/m-p/861859#M221 <HTML><HEAD></HEAD><BODY><P>Hi，</P><P>Can you show your test input voltage value and catch the waveform with VIN/IIN?</P><P>Can you show the related test PF value under different test condition?</P><P>You can also compare your test result with UM10444 page6 table1/2/3?</P><P>Or you can try to adjust the capacitor value of C1,C2&nbsp; to improve PF value.</P></BODY></HTML> Thu, 10 Jan 2019 07:21:44 GMT guoweisun 2019-01-10T07:21:44Z TEA1753 PFC performance https://community.nxp.com/t5/Power-Management/TEA1753-PFC-performance/m-p/861858#M220 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>I am evaluating the TEA1753 for a LED driver application. I have been testing the evaluation module UM10444 and I have a question regarding the performance of the PFC. I attached a couple of images of the input current to the&nbsp;<SPAN>UM10444, one&nbsp;at 90W load and one at around 28W load.&nbsp;</SPAN>There is significant zero-crossing distorsion in both cases. Is there any way to improve the performance of the PFC? What exactly is causing the zero-crossing distorsion?</P><P></P><P>Best regards,</P><P>Niclas Samuelsson</P></BODY></HTML> Wed, 09 Jan 2019 10:17:49 GMT https://community.nxp.com/t5/Power-Management/TEA1753-PFC-performance/m-p/861858#M220 niclas_samuelss 2019-01-09T10:17:49Z Re: TEA1753 PFC performance https://community.nxp.com/t5/Power-Management/TEA1753-PFC-performance/m-p/861859#M221 <HTML><HEAD></HEAD><BODY><P>Hi，</P><P>Can you show your test input voltage value and catch the waveform with VIN/IIN?</P><P>Can you show the related test PF value under different test condition?</P><P>You can also compare your test result with UM10444 page6 table1/2/3?</P><P>Or you can try to adjust the capacitor value of C1,C2&nbsp; to improve PF value.</P></BODY></HTML> Thu, 10 Jan 2019 07:21:44 GMT https://community.nxp.com/t5/Power-Management/TEA1753-PFC-performance/m-p/861859#M221 guoweisun 2019-01-10T07:21:44Z