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Control Current related

Kyoungmun Lee
Prodigy 10 points
Other Parts Discussed in Thread: SM72295

Hello,
I have a question for PMP7605 using SM72295 or SM72295.
I'm developing the product for Charger Solution.
I want to control Current of 0~20A and Input Voltage is Fixed(5Vdc ~ 80Vdc).
That is, How can I control Current of 0~20A according to Input  fixed Voltage such as 10Vdc, 30Vdc, 80Vdc etc ?
The range of Input Voltage is 5~80Vdc and then I want to control Output Current by 0~20A for PMP7605 EVM or SM72295 so and forth.
Is it possible to do that ?
If It is possible to that, Let me know how to do.
Otherwise, please tell me if you get the solution you know.
Thank you for your time
Best regards, 

  • 0
    TI__Intellectual 2010 points

    Hi Lee,

    If you are using SM72295 as a gate driver, you need to incorporate the internal current sensing amplifier of SM72205 to sense the output current from your converter and based on the current amount 0 to 20A (in your case), you can adjust the PWM of your controller. For PMP7605, MSP430 processor is being used in a current controlled feedback. Therefore, to control the current output, you need to implement current sensing and adjust the PWM from your controller. 

    Can you share some more details about your design?