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Topic: Boost DC DC Converter 24v to 48v using Arduino as controller (Read 2232 times) previous topic - next topic

phonetic

I have a application, need to convert 24 to 48 volts, looking at a boost switch mode circuit, would the arduino work to provied PWM and Volts in & out
monitoring.
looking for Ideas
Regards

Grumpy_Mike


I have a application, need to convert 24 to 48 volts, looking at a boost switch mode circuit, would the arduino work to provied PWM and Volts in & out
monitoring.
looking for Ideas

No bad idea. Use a proper voltage booster IC that is what they were designed for. What sort of current are you looking for, if it is heavy it is not an easy task.

Krodal

You can buy such a thing. That is the best option.

If you just need a small current and you want to control it with the Arduino, it is possible.
For example a coil and a mosfet as the main components.
Two voltage dividers to measure the 12V and the 24V.
And a PID software control.

dhenry

Quote
would the arduino work to provied PWM and Volts in & out
monitoring.


Sure. A simple implentation would be to use a pin to short the coil to ground periodically - applying pwm to that pin. Lower duty cycle on that pin means higher output voltage.

A more sophisticated version would use the adc or analog comparator to detect the output voltage and based on that, output a pwm signal to ground the coil via a switch - that's effectively what a pwm controller does, in hardware. The difficulty there is the control algorithm.

Many high-end dc/dc converters are build around mcus (by Freescale). So you are onto the right track.

auyong

Dear All,

As Mr. Krodal said that it is possible to produce a high-end dc/dc converter using arduino, I would like to ask which is the easiest way to be used since there are so many different types of dc/dc converter circuits? I am really new to dc/dc converters; thus, I would like to get some useful information from you all if I am going to produce a simple step-up dc/dc converter which can withstand 1000Watts.

Thank you for the time.

Best Regards,
Au Yong

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