Difference between revisions of "User:Definitionofis"

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=== [[Fridge Defrost Timer with Solar Trigger Option]] ===
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=== [[MPPT Solar and Wind Power Boost Charge Controller]] ===
The [http://www.youtube.com/watch?v=62LHITkTCMs project video] shows a fridge timer which can be set to trigger during high battery voltage sunny days so the defrost cycle never uses valuable battery power. It is switchable to act like a regular defrost timer for long cloudy stretches of time, like winter.
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This is an analogue computer with a digital option. It is an elegant, unique idea for MPPT. I have some documentation videos and circuit inside the link. The circuit works but I never used it much because my wind turbine project stalled. I am back: April 2016.
  
=== [[Solar panel rotator motor power with auto-shut-off]] ===
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=== [[Sun Tracker or Irrigation Timer to drive motors]] ===
The [http://www.youtube.com/watch?v=yCeiL8_Uw2U project video] shows a way to power solar panel rotator motors from a solar panel, supplemented by a walladapter.
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This is using two LEDs to sense the sun and send +- or -+ logic signals
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to a full bridge motor driver. You could also use this circuit
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to turn on an irrigation motor for a very short time every several hours.
  
=== [[MPPT Solar and Wind Power Boost Charge Controller]] ===
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=== [[Wireless remote switch, button press: 1 second=ON, 3 seconds=OFF]] ===
THIS IS NOT READY. I still have more testing to do. Later, I think I will sell my nine extra boards with one LTC3703 soldered in place, for $59.95US if you want to try the circuit. After they are gone, I might release the board layout diagram, which is critical to success.
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My solar power has to be manually switched to city power at sunset in my
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basement. I made this wireless upstairs button, instead of running a long 120vac wire to an upstairs switch.
  
I have some documentation videos. It is 9v through 60v MPPT boost to a 48v nominal lead-acid battery.
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=== [[Fridge Defrost Timer with Solar Trigger Option]] ===
It needs more testing after I attach a wind turbine and a monitoring microcontroller. Otherwise, it seems to work, so far. How much power can it handle? I am not sure yet. I think 500 watts minimum and maybe 1K watts and with different mosfets and diodes and more copper over the traces, 4000 watts.
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The [https://vimeo.com/177809415 project video] shows a fridge timer which can be set to trigger during high battery voltage sunny days so the defrost cycle never uses valuable battery power. It is switchable to act like a regular defrost timer for long cloudy stretches of time, like winter.
 
 
This circuit is an analogue computer, when run without a microprocessor. It is doing integration math, via the op amp. I added a jumper for optional microprocessor control. I have not tried it, yet.
 
  
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=== [[Solar panel rotator motor power with auto-shut-off]] ===
 +
The [https://vimeo.com/48903056 project video] shows a way to power solar panel rotator motors from a solar panel, supplemented by a walladapter.
  
http://www.opencircuits.com/images/9/97/Mppt_schematic_asof_Jul22_2012.png
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=== [[Odroid XU4 Weeding Spraying Robot]] ===
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The [https://vimeo.com/239274466 project video] shows the completed robot spraying weeds. I proved the prototype works, although it is impracticably slow.

Revision as of 19:30, 17 August 2019

MPPT Solar and Wind Power Boost Charge Controller

This is an analogue computer with a digital option. It is an elegant, unique idea for MPPT. I have some documentation videos and circuit inside the link. The circuit works but I never used it much because my wind turbine project stalled. I am back: April 2016.

Sun Tracker or Irrigation Timer to drive motors

This is using two LEDs to sense the sun and send +- or -+ logic signals to a full bridge motor driver. You could also use this circuit to turn on an irrigation motor for a very short time every several hours.

Wireless remote switch, button press: 1 second=ON, 3 seconds=OFF

My solar power has to be manually switched to city power at sunset in my basement. I made this wireless upstairs button, instead of running a long 120vac wire to an upstairs switch.

Fridge Defrost Timer with Solar Trigger Option

The project video shows a fridge timer which can be set to trigger during high battery voltage sunny days so the defrost cycle never uses valuable battery power. It is switchable to act like a regular defrost timer for long cloudy stretches of time, like winter.

Solar panel rotator motor power with auto-shut-off

The project video shows a way to power solar panel rotator motors from a solar panel, supplemented by a walladapter.

Odroid XU4 Weeding Spraying Robot

The project video shows the completed robot spraying weeds. I proved the prototype works, although it is impracticably slow.