variable output voltage 100-150V
Posted by: nagasahitya
on
Hi team,
input voltage is 98-138V dc.flyback topology,output voltage is 100-150v dc,1A.plz give suggestion for feedback circuit with tl431(max cathode voltage of tl431 is 36v,how to protect tl431 at more output voltages)
Comments
dear team,
can u provide any reference schematic.
Go to parametric seach
http://www.powerint.com/en/design-support/parametric-search#6500
One example is DER212, refer to figure 4.
You can use a voltage divider network to lower down the voltage to TL431.