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Forum Post: Electromagnet power supply

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Hi,

I have a requirement of supplying varying voltages from an incoming 24V DC source to an electromagnet. I need to derive 40V from 24V with about 2A output current requirment and dynamically change the output voltage from 40V to 12V in steps. Is there any I2C/SPI controllable buck-boost regulator? If not, is there a buck-boost converter whose feedback voltage can be changed using a DAC to change the output voltage from 40V to 12V in some discrete steps?

Regards,

Viswa


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