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Recycling a Laptop Battery Pack for Bicycle Lighting
DC Motor Controller for Electric Bicycle
Givi Motorcycle Trunk LED Mod
Locking Bike Crate
This circuit is a DC-DC Step down Converter. You want to look for a Step up converter.
Thanks man! A simple project but I liked it very much.It has been a week that I'm looking for new rechargeable bike lights (they cost a lot).Now I can use my phone battery pack after a little work, thanks again for the idea! =)
USB-Rechargeable Battery Pack for Bicycle Lighting
Raspberry Pi Case Fan
Thanks for sharing and you have my admiration for the simplicity of the design. Just a question. You oversized the components just to be sure to fit into your engine power requirements but cutting the power unit in two and using only one power diode and one fet but how much power do you think an alternative board would be able to handle considering A. A good sw pwm implementation B. current monitoring and consequent protection C. Eventual spike current generated by the engine during start ? I'm quite interested in developing a control board for an ebike engine but I'd like to understand if it is worthy first. Thank you. G
IOT Garage Door Opener (Android and Intel Edison)
LED Flasher (automotive or motorcycle)
What changes would have to be made to use a circuit such as this with standard bulbs and on a 6V motorcycle system with a two-prong blinker relay?
WHat changes would have to be made to use a circuit such as this with standard bulbs and on a 6V motorcycle system?
Electric Long Bike
Well, the 555 timer has a maximum input voltage of 18V, but the bike runs at 11-14.7V so it was impossible to find a proper TVS diode that had a clamping voltage of less than 18V with a working voltage of more than 15. Thus, I had to resort to regulation. I chose a simple linear 10V regulator that could handle up to 35V input. I also included a PTC resistor to protect against load dump. It should be practically bulletproof electrically. But that's not going to work for your circuit because it would never turn off (it looks like your signals are always on and blink off) - the regulated voltage would always keep a voltage drop over your emitter/base junction. I'm using an NPN to switch a SPDT relay's coil ground to provide an option for switching between normally on or off. ...Although, I suppose you could add in a small transistor to switch the power one at the proper level. I whipped up a schematic of the protection/regulation circuit in MSpaint for you:
Motorcycle/Automotive Bulb LED Hack
My circuit is still working, but adding voltage-spike protection is an excellent idea. Once your circuit is working, if you send me your schematic, I will append it to this instructable. Thanks :)
Is this still working long term on your motorcycle? I'm designing a similar circuit, but I was going to use a voltage regulator, PTC resistor, and TVS diode to protect the 555 against voltage fluctations and static which can be pretty extreme, especially on an old motorcycle (I have an old BMW airhead). Is the 555 timer robust enough to handle that?
A USB Charging Port for an Electric Bicycle
i just orden 250W 24 volt motor my e-bike project and i think how i make arduino code speed controller whit FET and how i made over current limited here ? and then how control gel battery (2 12V serial=24V out) how code at NOTover-discharged the battery ? how measure and protect battery. im not good write code to arduino.if somebody have working code and schematic i try made and test my project this. or have better use e-bike kit own controller ? but i think how safe battery not over discharge empty and think arduino whit i2c lcd can show battery volt,+speed+current+time+battery empty alarm,etc etc what must be.
EBike Throttle Control of an RC Motor ECS
This is very informative for those with a three pin relay :-)However, I have a five pin relay on the Vulcan Mean Streak,Purchased a replacement five pin for LED flashers but cannot workout the correct terminal match. If that's at all possible?Anyone who "knows", I appreciate very much :-)
Sorry I should have uploaded details that I have available
hi 5v in to 19v uot how?part?
By I tested them I mean that they are brighter at 6-7V than the 12V-designed that I tested which need more voltage to make a decent light.
I am using pre packaged led bulbs 6v (yes yes, it exists, Itested them). At first I adaptated the load with power resistor (one for each led bulb) but turns out my relay might be dead (it blinks one time when I turn it on on either side then goes back to no light and doesn't move again). So I'm looking for a solution which would work (whether I remove or not my adaptative loads). I'll try that and we'll see !
Okay so you're saying this circuit would work on 6v/12v without adaptation ?My current original relay is dead and I want to replace it, so in the same time I replaced the original bulbs by led bulbs. They consume something like 200mA each but I can adapt this load in case this doesn't work. Thanks I'll try then :)
Hey ! Thanks for the job, great tutorial and very helpfull. I have a few questions to ask you or the community though since I couldn't find my answer on the web.I'm working on a old motorcycle which uses 1) a very old school relay with a big inductance (magnetic force if you see what I'm talking about) and 2) a 6v voltage. My questions are could I use the same kind of schematic for that bike since I can't modify the current relay and what would I need to change to operate it in 6v ? I can't put the finger on what makes a relay works on 12v or 6v.Many thanks to whoever will be able to answer to one or both of my questions.
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