How do you voltage balance between your series connected capacitors? The easiest solutions I've seen are simply resistors, but obviously they're have a constant leakage and so aren't very efficient for energy storage applications. There are various ways I've been thinking of balancing (zener diode and power transistor or a design based on op-amps) but would love to know what solutions other people are using.
@MaxwellsDaemon I used the maxwell integration kit, so I am not really sure exactly how the circuit functions. If you search for "maxwell integration kit", there is a pdf with an image of the circuit, so it might give an idea of what they use.
@jiffycoil its a voltage comparator circuit, which turns the load on or off depending on the voltage level. It's basically an add-on circuit to the spc3 and he gives the schematic on his site. With just the controller board itself, the load will not automatically turn on after the low voltage disconnect kicks in and the voltage comes back up. You have to use the supplied switch.
To be critical of the build, if you allow me, I think the charge controller is a little large for its purpose. So many parts... Regardless, you made a clean build and I would love to see more. I am sure the SEC makes lighting the LED much more efficient. Maybe adding more mass after L3 might increase brightness, but this is just a guess.
I love criticism. :) It is a little large, but the controller is very efficient, and is completely adjustable as far as charge cutoff, load on and off. Other controllers with those functions were 2-3 times the price. :) The 2 watt led is at full or at least very close to full brightness (can test on 120v socket directly because it has built in resistors), but I set the exposure low, so the light wouldn't blow out the rest of the picture. The whole setup running the led only draws half a watt.
@Wavefront101 Dude WTF I am keen on that game. I have played that a few times... Um what level or what cinematic sequence was that? You had it timed PERFECTLY.... o:47 the ticking sound as you approach the voltage reading........ @ 1:00 as the voltage reaches your threshold, lighting that light, and that noise... DUDE.. Nice editing.. Totally.. You have got some ambient skill dude...
@CosmicGnarler Thanks. Actually I checked again, and it is from hl1, not 2. It is song 5. Both are classic games. Deus Ex will always be my favorite though..
How do you voltage balance between your series connected capacitors? The easiest solutions I've seen are simply resistors, but obviously they're have a constant leakage and so aren't very efficient for energy storage applications. There are various ways I've been thinking of balancing (zener diode and power transistor or a design based on op-amps) but would love to know what solutions other people are using.
MaxwellsDaemon 1 month ago
@MaxwellsDaemon I used the maxwell integration kit, so I am not really sure exactly how the circuit functions. If you search for "maxwell integration kit", there is a pdf with an image of the circuit, so it might give an idea of what they use.
Wavefront101 1 month ago
@Wavefront101 Thanks - will have a search and see what I can find.
MaxwellsDaemon 1 month ago
Beautiful build. What is the board to the right of the SPC3? I'm fascinated with this build.
jiffycoil 1 year ago
@jiffycoil its a voltage comparator circuit, which turns the load on or off depending on the voltage level. It's basically an add-on circuit to the spc3 and he gives the schematic on his site. With just the controller board itself, the load will not automatically turn on after the low voltage disconnect kicks in and the voltage comes back up. You have to use the supplied switch.
Wavefront101 1 year ago
To be critical of the build, if you allow me, I think the charge controller is a little large for its purpose. So many parts... Regardless, you made a clean build and I would love to see more. I am sure the SEC makes lighting the LED much more efficient. Maybe adding more mass after L3 might increase brightness, but this is just a guess.
Thanks for your awesomeness!
CosmicGnarler 1 year ago
I love criticism. :) It is a little large, but the controller is very efficient, and is completely adjustable as far as charge cutoff, load on and off. Other controllers with those functions were 2-3 times the price. :) The 2 watt led is at full or at least very close to full brightness (can test on 120v socket directly because it has built in resistors), but I set the exposure low, so the light wouldn't blow out the rest of the picture. The whole setup running the led only draws half a watt.
Wavefront101 1 year ago
Interesting, I love the tune... Where did you get such an ambient track?
anyway, the build looks professional, is that a square L3?
CosmicGnarler 1 year ago
@CosmicGnarler yes the L3 is square, it's a little easier to mount being flat. Got the track off half life 2. :)
Wavefront101 1 year ago
@Wavefront101 Dude WTF I am keen on that game. I have played that a few times... Um what level or what cinematic sequence was that? You had it timed PERFECTLY.... o:47 the ticking sound as you approach the voltage reading........ @ 1:00 as the voltage reaches your threshold, lighting that light, and that noise... DUDE.. Nice editing.. Totally.. You have got some ambient skill dude...
This is GOLD !!!
CosmicGnarler 1 year ago
@CosmicGnarler Thanks. Actually I checked again, and it is from hl1, not 2. It is song 5. Both are classic games. Deus Ex will always be my favorite though..
Wavefront101 1 year ago