openbench:psu
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openbench:psu [2011/01/15 05:25] pstemari |
openbench:psu [2016/01/28 18:05] (current) |
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| ====== comments ====== | ====== comments ====== | ||
| - | What happens when the output voltage is set to 3.3 V, and I hook it up to a 12 V battery? | + | What happens when the power supply output voltage is set to 3.3 V, and I hook that output up to a 12 V battery? |
| Which is better: | Which is better: | ||
| * The PSU pulls the voltage down to 3.3 V (or as close as possible until it hits the current limit)? or | * The PSU pulls the voltage down to 3.3 V (or as close as possible until it hits the current limit)? or | ||
| Line 40: | Line 40: | ||
| Should have a 3.3v fixed output as well as the 5v. Easy enough to handle. 1A should be good for most purposes on the fixed supplies. Elektor ran a switching PSU module in April that I made some tweeks on and currently as waiting on boards. Galvanically isolating the adjustible supplies is a potential issue. As soon as you hook a meter panel up, the two supplies are tied together. Hack around it by using two MCUs for A/D and transmitting to a third one via optoisolators?--pstemari | Should have a 3.3v fixed output as well as the 5v. Easy enough to handle. 1A should be good for most purposes on the fixed supplies. Elektor ran a switching PSU module in April that I made some tweeks on and currently as waiting on boards. Galvanically isolating the adjustible supplies is a potential issue. As soon as you hook a meter panel up, the two supplies are tied together. Hack around it by using two MCUs for A/D and transmitting to a third one via optoisolators?--pstemari | ||
| - | ---- | + | ====== Further reading ====== |
| + | |||
| + | * "Bench power supply tutorial" https://www.adafruit.com/forums/viewtopic.php?f=8&t=24200 | ||
| + | * "Bench-Top Power Supply" by James Littlejohn for the Tulsa Electronics Club | ||
| + | * "Building a digitally controlled bench power supply using an AVR" http://electronics.stackexchange.com/questions/18249/building-a-digitally-controlled-bench-power-supply-using-an-avr | ||
| + | * DIY Variable bench power supply http://www.instructables.com/id/DIY-Variable-bench-power-supply/ | ||
| + | * DIY PSU into Bench Power supply http://www.instructables.com/id/DIY-PSU-into-Bench-Power-supply/ | ||
| + | * DIY digital bench power supply http://hackaday.com/2011/06/06/diy-digital-bench-power-supply/ | ||
| + | * My DIY Bench Power Supply http://www.swharden.com/blog/2012-12-18-my-diy-bench-power-supply/ | ||
| + | * DIY Bench Power Supply http://www.adwiens.com/projects/electronics/07/index.html | ||
/home/ladyada/public_html/wiki/data/pages/openbench/psu.txt · Last modified: 2016/01/28 18:05 (external edit)
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