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  • Author Author: dougw
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Stirling Blue - Power Measurement - Blog 7 (updated)

dougw

In this blog I am trying to figure out if the Stirling engine generates enough power to run the electronic data acquisition system based on a PSoC6.

First I am going to measure how much current and voltage the PSoC6 requires. Then I am going to measure how much current and voltage the Stirling engine generates.

 

Finally, I am going to measure the engine speed:

 

The motor-generator set puts out about a quarter Watt, which is easily enough to run a low power microcontroller, but for now I will keep it simple and power the electronics separately.

 

Update - Temperature Measurement:

I added a temperature measurement adventure with the Stirling engine...

 

Upcoming blogs:

  • how Stirling engines work
  • start connecting some sensors to the PSoC6
  • designing the sensor interface PCB
  • the micro:bit keyboard

 

Related Links:

Bluetooth Unleashed Design Challenge

Bluetooth Unleashed Design Challenge: The Challengers

Bluetooth Unleashed Design Challenge: About This Challenge

 

Links to other blogs for this project:

Stirling Blue - Project Description - Blog 1

Stirling Blue - Unboxing Hero - Blog 2

StirlingBlue1

Stirling Blue - micro:bit TXTR - Blog 3

Stirling Blue - Fuel Measurement - Blog 4

FuelMeasurement1

Stirling Blue - Interface Description - Blog 5

Stirling Blue - BBC micro:bit LCD - Blog 6

microbitLCD1

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  • Hi Doug,

     

    Very nice demo on the power (open voltage & load).

     

    Regarding PSoC 6. There is a switch (SW5), which gives you 3 power options. Top - 1.8V, Middle - 3.3V and Bottom is variable between 1.8 & 3.3V. So the MCU should be quite happy with the variable setting. The EPD shield requires a 3V input (vin & 5V are NC). So you would need some sort of power regulation for that. Also, the USB-C charge controller (CYPD3125-40LQXIT) min-max voltage range is 2.7V to 5.5V. So, you are just reaching min voltage under load.

     

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  • Hi Doug,

     

    Very nice demo on the power (open voltage & load).

     

    Regarding PSoC 6. There is a switch (SW5), which gives you 3 power options. Top - 1.8V, Middle - 3.3V and Bottom is variable between 1.8 & 3.3V. So the MCU should be quite happy with the variable setting. The EPD shield requires a 3V input (vin & 5V are NC). So you would need some sort of power regulation for that. Also, the USB-C charge controller (CYPD3125-40LQXIT) min-max voltage range is 2.7V to 5.5V. So, you are just reaching min voltage under load.

     

    G://

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