https://community.nxp.com/t5/Power-Management/Isolated-Feedback-Circuit/m-p/927291#M442 <HTML><HEAD></HEAD><BODY><P>TEA19361T, what does this part of the circuit do? Obviously the optocoupler is feeding back the output with isolation, but how do the cap and thyristor affect this circuit?</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/69755i844903EC8D0186D0/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P></BODY></HTML> Tue, 30 Jul 2019 19:05:04 GMT mp145002 2019-07-30T19:05:04Z https://community.nxp.com/t5/Power-Management/Isolated-Feedback-Circuit/m-p/927291#M442 <HTML><HEAD></HEAD><BODY><P>TEA19361T, what does this part of the circuit do? Obviously the optocoupler is feeding back the output with isolation, but how do the cap and thyristor affect this circuit?</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/69755i844903EC8D0186D0/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P></BODY></HTML> Tue, 30 Jul 2019 19:05:04 GMT https://community.nxp.com/t5/Power-Management/Isolated-Feedback-Circuit/m-p/927291#M442 mp145002 2019-07-30T19:05:04Z https://community.nxp.com/t5/Power-Management/Isolated-Feedback-Circuit/m-p/927292#M443 <HTML><HEAD></HEAD><BODY><P>Hi</P><P>This is a output voltage/current feedback circuit.</P><P>TL431 as a c<SPAN style="color: #2e3033; font-family: Arial, 'Microsoft YaHei', 微软雅黑, 宋体, 'Malgun Gothic', Meiryo, sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; display: inline !important; float: none;">ontrollable precision voltage regulator,</SPAN>Capacitor as compensation circuit of TL431.</P></BODY></HTML> Wed, 31 Jul 2019 01:58:04 GMT https://community.nxp.com/t5/Power-Management/Isolated-Feedback-Circuit/m-p/927292#M443 guoweisun 2019-07-31T01:58:04Z