I have maintain constant current @ the different load in boost converter

Brownout

Joined Jan 10, 2012
2,364
You'll get a much better response if you start your own thread and ask a detailed question. Details should include limits in the load difference, voltages, currents (not just difference in currents) any relevant drawings, schematics and any work you've done so far. Plus some things I'm probably forgetting.
 

AnalogKid

Joined Aug 1, 2013
8,103
Input voltage range?
Output voltage range?
Isolated / non-isolated?
Load?
Transient response?
Constant-current regulator, or a constant-current add-on to a standard voltage regulator?
SCHEMATIC?
ak
 

dl324

Joined Mar 30, 2015
8,890
i need out put 80v @50mA it's possible,.....with different load ....
The first thing you need to do is get it straight in your mind what you want. Do you want constant current? Or do you want current limited to a maximum?
 

dl324

Joined Mar 30, 2015
8,890
The step up regulator wiring is odd. Did you read the datasheet/appnote? It's more typical to put the current limiting resistor between pins 6 and 7 on the regulator. Your circuit has those two pins shorted and has 0.22ohm resistors scattered about willy nilly.
 
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