MSP430FR2433: Powering device from peizo harvesting

vadim piskun

Part Number: MSP430FR2433

I am using MSP430FR2433 for piezo harvesting. The piezo voltage can go from 0 to 80 V. Is there a TI solution for this chip that allows powering of MSP430FR2433 from such variable source without loosing much energy?

thanks vadim

over 3 years ago

0 James Evans over 3 years ago

TI__Mastermind 49692 points

Hello,

Assuming the piezo output voltage is DC, you'll probably need a buck-boost DC/DC converter with an appropriate input range (e.g. 0 to 80 V). A buck converter won't work since the input voltage (e.g. 1 V) would be less than the output voltage (e.g. 3.6 V for MSP430FR2433 DVCC).

I did a quick search, and I found the LM5170 - NEW - Multiphase bidirectional current controller. It has an input range from 0.1 V to 100 V. I would recommend posting a question in the Power Management forum to see if they have a better recommendation.

Regards,

James

0 vadim piskun over 3 years ago in reply to James Evans

Expert 2220 points

thanks!

vadim

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MSP430FR2433: Powering device from peizo harvesting