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This low cost charger controller for under £20 gives better results than an expensive Morning Star £70 controller I had in my last van.
After checking levels and tightness of the connections at the battery and charge controller this week in March 2011, I noticed the pulsing equalization charge to the battery from the controller was 14.9 volts, I was a bit alarmed at such a high voltage at first, until I re-read the instruction manual, it stated that when the battery is fully charged and the ambient temperature is at zero or below, the controller will output nearly 15 volts in the equalisation mode for a short time before going into float mode of 13.8 volts. The equalisation mode will bring all cells in the battery bank up to the same charge level, so conditioning the battery. Seems to work as I have never had an Elecsol Carbon Fibre battery fail me in the last eleven years, the oldest battery being over ten years old, putting an old battery and new battery in parallel is supposed to be a no no, but it worked for me, and the charge controller seemed happy enough.
I am not sure just how happy my unregulated cheapo SMD 5050 LED lighting will be with a pulsating (PWM) line voltage/power, although if the sun is out I suppose I won’t be using the lights anyway.
see link
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Hi Pete,
The SMD 5050 leds I have are the two quid variety from China, they have the tiny MB6S bridge rectifier so the led assembly connections are not polarity conscious, and a selection of resistors mounted on the pcb rear, but no voltage stabilisers, so they are rated at 12 volts only. Reading the forums some members have suggested that they should work up to 13.5 volts with not too much detriment to their longevity.
On a fully charged battery and when the controller is in the equalisation mode, the PWM frequency is fast enough not to effect the performance of the leds , i.e. no flickering can be detected, the battery would smooth things out as you remark, but the voltage at the battery terminals is still reading nearly 15 volts, not too good for my cheapo Chinese SMD 5050 leds.
I noticed as the cvan voltmeter was indicating 15 volts (verified) while the ammeter monitoring the controller output power, was cycling very quickly between 0.3 amps to 1.5 amps, now I know the ammeter will lag, but it looks to me as if the PWM is pulsing the power and not the voltage. If we get the same sunny conditions and zero ambient temperature later I will put my scope on the controller output to see what is actually happening.
I think you will find the 12 volt G4 LED types that stand up to 30 volts are the ones that cost upwards of £8 each not the 30 bob ones that I have – I know I’m a cheapskate -
Does anyone else have the combination of Solar Panel and the Cheapo Chinese LEDs ? and could check the battery voltage on a fully charged battery when the sun comes up?
Regards Terry
Nore about LEDs on link below.
www.caravantalk.org.uk/topic/44237-l-e-d-s-m-d-lights/pag...
T.16000m modded
Wirering base
Hall magnet in place. This locks the movement of the wires in the handle. So no pulling the wires when the magnet is installed.
I soldered wires to the contact points for the 6 base buttons like this:
www.flickr.com/photos/dantdbv/34996968611/in/album-721576...
And managed to short out all of them and had to use a sharp knife point to break all the unwanted connections.
Another solution is to scrape of the paint from the traces leading to the connection points and solder the wire there. It retains the full use of the base buttons.
The next challenge is to replicate the equipment shown here on the rear deck such as the controller and meter housing. The right-hand box could house a knifeswitch or main fuse, I'm not sure.
Darryl Killian Photo.
Finally saw the new Logitech Squeezebox Duet at Macworld today. According to the Slim Devices dude - they are finalizing the hardware by the end of January, and it's going to be released to people on the waiting list in February.
The receiver is basically a Squeezebox v3 without the display (sorta - it has a Wolfson DAC as opposed to a Burr-Brown (I don't believe that this is a detrimental change)). Also, this one doesn't have a built in mini-RCA headphone jack, but it should come with an RCA to mini-RCA adaptor. The receiver will sell seperately for $150, the controller for $299, or you can buy both as a bundle for 399. (List prices - not sure what it will street for yet...)
I couldn't find a detailed video of this device, so I made this one. Also see: this picture and this picture too.
A controller is important. I’ve had some real bad ones in the past. A $20 Logitech piece that bent my fingers in strange ways. A third-party Gamecube controller where you had to really press the A button hard if you wanted anything to happen. The Steam Controller. To the big gaming companies, a controller is […]
www.fbtb.net/video-games/2020/04/08/lets-talk-about-this-...
Quadrotor Flight Controller class at the HiTech STEM Lab at the East Columbia Branch of the HCLS. The purpose of the class is to introduce students to quadcopters through hand-on learning. The studets investigated the physics behind multirotor liftoff, stabilization, direction of flight, and landing the aircraft. Students worked in teams to assemble the
propulsion system and wire the flight controller and power system. Students honed their flight skills through a flight simulator before flight testing their builds in the final class.
Quadrotor Flight Controller class at the HiTech STEM Lab at the East Columbia Branch of the HCLS. The purpose of the class is to introduce students to quadcopters through hand-on learning. The studets investigated the physics behind multirotor liftoff, stabilization, direction of flight, and landing the aircraft. Students worked in teams to assemble the
propulsion system and wire the flight controller and power system. Students honed their flight skills through a flight simulator before flight testing their builds in the final class.
All up and running. Full analog, and digital control over pressure, up, down, flat, whatever. Use the mini joystick(can't really see it here) for full manual control to figure what works best for your shot profile, then use the controller to set this in auto. Press start, and the controller will duplicate your profile. Works perfectly. Can't really describe how it works, otherwise I might see it for sale by guys likeTerry Z.
I only say that because I fund all my experiments, and would like to someday get some of it back. This is in a funny little box made for travel, but In the shop is the start of a 3 group using this system all built in.
Also, due to sudden events here, my European trip is pushed back about a month.....
Quadrotor Flight Controller class at the HiTech STEM Lab at the East Columbia Branch of the HCLS. The purpose of the class is to introduce students to quadcopters through hand-on learning. The studets investigated the physics behind multirotor liftoff, stabilization, direction of flight, and landing the aircraft. Students worked in teams to assemble the
propulsion system and wire the flight controller and power system. Students honed their flight skills through a flight simulator before flight testing their builds in the final class.
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Quadrotor Flight Controller class at the HiTech STEM Lab at the East Columbia Branch of the HCLS. The purpose of the class is to introduce students to quadcopters through hand-on learning. The studets investigated the physics behind multirotor liftoff, stabilization, direction of flight, and landing the aircraft. Students worked in teams to assemble the
propulsion system and wire the flight controller and power system. Students honed their flight skills through a flight simulator before flight testing their builds in the final class.
Quadrotor Flight Controller class at the HiTech STEM Lab at the East Columbia Branch of the HCLS. The purpose of the class is to introduce students to quadcopters through hand-on learning. The studets investigated the physics behind multirotor liftoff, stabilization, direction of flight, and landing the aircraft. Students worked in teams to assemble the
propulsion system and wire the flight controller and power system. Students honed their flight skills through a flight simulator before flight testing their builds in the final class.
Oh my this was harder than I expected, I had crazycakes.eu problem I had a killer of a migraine and struggled to keep going. However this is the end product, I hope it looks like a controller and my client is pleased! we shall see.