Bjtpower
Full Member level 5
Hello Friends,
I am Building a circuit by taking the application example from LTYSWITCH-7 from the Power Integrations.
Now i want to make the some changes accordingly.
Changes are
When input voltage range:85-135VAC, the ic should provide me a constant current of 80mA
When input voltage range:150-210VAC, the ic should provide me a constant current of 160mA
Now by looking at the datasheet VFB Pin if we provide a 280mv to that pin it will regulate the current
Now i want to process the shunt signal and accordingly make the chnage in current.
How it can be accomplished.
My thoughts are attached but having problem to do the same.
- - - Updated - - -
https://www.google.co.in/url?sa=t&r...load=1&usg=AFQjCNH-qJ2-LyYzPui93smtjf_He4q45Q
I am Building a circuit by taking the application example from LTYSWITCH-7 from the Power Integrations.
Now i want to make the some changes accordingly.
Changes are
When input voltage range:85-135VAC, the ic should provide me a constant current of 80mA
When input voltage range:150-210VAC, the ic should provide me a constant current of 160mA
Now by looking at the datasheet VFB Pin if we provide a 280mv to that pin it will regulate the current
Now i want to process the shunt signal and accordingly make the chnage in current.
How it can be accomplished.
My thoughts are attached but having problem to do the same.
- - - Updated - - -
https://www.google.co.in/url?sa=t&r...load=1&usg=AFQjCNH-qJ2-LyYzPui93smtjf_He4q45Q