Power Supply Inside Out, or Electronic Load V2 Control Board
The entire process is described in several reviews:
Complete load
Power module
Power supply
ICL7660 chip and a current sensor based on it
The load has been working great for a year and a half. Around summer, one of my regular readers got in touch. He had not only built it, but also modified the firmware, adding a lot of useful features.
That gave me the idea to make version 2, with some significant changes.
In addition to CC mode, I plan to add CV, CP, and CR modes.
I’m especially interested in CV mode, since it makes it possible to test and adjust chargers.
I’d also like to be able to increase the maximum current and power.
I’m also considering switching to a different, more powerful processor—or rather, one with more resources and higher PWM and ADC resolution.
The controls and display may change too, but those details are still under discussion.
Now, what this thread is actually about.
I’ll try to post updates on how things are progressing here. I’d also be very interested to hear what other people think about how this device should be designed.
In other words, this thread will be updated and expanded.
upd. 31.01
I remembered an interesting video about an electronic load and decided to add it.
upd. 10.02
I decided to add another video showing the insides of an electronic load. A heatsink design along these lines is of interest.
Complete load
Power module
Power supply
ICL7660 chip and a current sensor based on it
The load has been working great for a year and a half. Around summer, one of my regular readers got in touch. He had not only built it, but also modified the firmware, adding a lot of useful features.
That gave me the idea to make version 2, with some significant changes.
In addition to CC mode, I plan to add CV, CP, and CR modes.
I’m especially interested in CV mode, since it makes it possible to test and adjust chargers.
I’d also like to be able to increase the maximum current and power.
I’m also considering switching to a different, more powerful processor—or rather, one with more resources and higher PWM and ADC resolution.
The controls and display may change too, but those details are still under discussion.
Now, what this thread is actually about.
I’ll try to post updates on how things are progressing here. I’d also be very interested to hear what other people think about how this device should be designed.
In other words, this thread will be updated and expanded.
upd. 31.01
I remembered an interesting video about an electronic load and decided to add it.
upd. 10.02
I decided to add another video showing the insides of an electronic load. A heatsink design along these lines is of interest.
This page was found when searching for:
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