EEVBlog #221: Lab Power Supply Design Part 1

EEVBlog 221Dave Jones at the EEVBlog has created another awesome video that's recommended viewing for all: 

EEVBlog #221:  Lab Power Supply Design Part 1.  Dave goes through all of the design considerations and calculations for a micro-controlled power supply.  He starts with the basic LM317 regulator for constant current and constant voltage and goes over the limitations.

Dave provides a great look at the design process and calculations involved.

EEVBlog

 EEVblog #221 – Lab Power Supply Design – Part 1

 EEVblog #222 – Lab Power Supply Design – Part 2

 EEVblog #224 – Lab Power Supply Design – Part 3

EEVblog #225 – Lab Power Supply Design Part 4 – PWM Control

EEVblog #232 – Lab Power Supply Design Part 5

Note the link to the schematic on the above page.

 

 

 


Posted: 5 years 10 months ago by Jon Chandler #9540
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Dave explains the design process very clearly. Most of our projects could benefit from some detailed thought and analysis before starting with the hardware and software!

LM317 voltage regulators are discussed at length. Highly recommended viewing.
Posted: 5 years 10 months ago by bitfogav #9542
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Thanks for posting this Jon, Im actually looking at building a power supply for my test bench and putting a Visual Basic App together to control the power output.
Posted: 5 years 10 months ago by Jon Chandler #9545
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For future reference, here's the link to the video on the EEV site:

EEVblog #221 – Lab Power Supply Design – Part 1
Posted: 5 years 10 months ago by Jon Chandler #9552
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Part 2 has been posted on YouTube:

EEVBlog #222: Lab Power Supply Design Part 2
Posted: 5 years 10 months ago by Jon Chandler #9586
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EEVblog #224 – Lab Power Supply Design – Part 3 has been posted at EEVBlog and part 4 is scheduled to appear shortly (it's already on You Tube).

I highly recommend watching as Dave explains all the required calculations.
Posted: 5 years 9 months ago by bitfogav #9811
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Do anyone else have a problem sourcing the LT3080 Reg that Dave uses in this power supply design?..
Posted: 5 years 9 months ago by Jon G #9813
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I ordered 2 from Digikey this past Sunday... They showed up Wed. USPS shipping!
Posted: 5 years 9 months ago by bitfogav #9814
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there must just be a limited supply in the UK then
Posted: 5 years 9 months ago by Jon Chandler #9904
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The fifth (and final?) part of this series has been posted at EEVBlog:

EEVblog #232 – Lab Power Supply Design Part 5

Note the link to a pdf schematic on that page.

Dave goes through the final base schematic for his Open Hardware lab power supply design.



More information about all parts of this series and many other topics can be found in the EEVBlog Forum. It's a good place to start if you have any questions.

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