12 Volt Lighting System Challenge

Discussion in 'Electrical' started by Mike St, Jul 24, 2009.

  1. Mike St

    Mike St Member

    OK, I am challenging or seeking solutions for the following circuit:
    I have invented a way of getting tons of generated watts (40-90) from a four stroke 49cc Honda or Grubee 49 cc engine, plenty enough for halogen lighting, the works. Here's the challenge: Create a low cost circuit that uses a 12 volt battery. The input on the battery may be as high as 60 volts, direct current. As the engine revs, the voltage varies, so it has to be regulated down to 12 volts. The voltage range can be adjusted but it always will be in a wide range as the engine goes from idle to 6500 rpm. A twelve volt sytsem is much preferred; it opens up plenty of 12 volt auto lights, bulbs, etc. Mike

  2. likearock111

    likearock111 Guest


    With all due respect, why would anyone put time and effort into designing a detailed solution to your problem and then share it with you, when you yourself won't share the technical details related to your specific design for generating "40-90 watts" of electrical power from your Grubee kit? Oh, and, by "technical details," I mean schematics, blown-out mechanical drawings, part numbers, etc., NOT an 'ooh look at my lights stay on' grainy youtube video.

    Clearly, the intended byproduct of this inquiry was to be a drop-in module for your lighting project, a project on which you have previously talked about obtaining patent protection. This is somewhat laughable to me, as you apparently fully expect people on this forum to become, in essence, your unpaid employees, by designing a circuit for your "patent pending" (see your youtube video description) generator system. As far as we know, you would then claim "public disclosure" on OUR posted design and then incorporate it directly into your for-profit system. Your attitude and behavior throughout your post history have given me no reason to believe otherwise.

    Based on my experiences here, it seems to me that this forum is intended to facilitate open discussion and sharing of ideas between motored bike enthusiasts, not to give potential future vendors unpaid labor and creativity to take advantage of.

    Therefore, until you publicly post a detailed technical description of the design and manufacture of your "40-90 watt" lighting system without patent, you'll receive no help from me. I can only speak for myself, though, so maybe others will be more willing to donate their time to the growth of your checking account.

    Best regards,
  3. Mike St

    Mike St Member

    Ok, so don't participate. Do what you feel. But pLease don't impune my intentions as you
    don't know what my patent application covers, and what I or anyone would do with a
    solution. Maybe you have a crystal ball. I don't know. If I saw another solution, I might ask the creator to join me in a joint patent application, or just choose to release the solution here on this site to users following complete testing. At least I'm willing always to bare the cost and time of testing; I'm not just talk.
  4. loquin

    loquin Active Member

    My approach would be a pulse width regulation. Essentially, at a high frequency, (100 khz or so,) you provide a pulse of the high input voltage DC to a filter capacitor. And, you monitor the capacitor voltage. When the cap voltage reaches the upper limit, you turn off the pulse. Then, when the cap voltage falls below a slightly lower, lower limit, you start the next pulse. repeat. This results in a DC voltage with a small, hi frequency sawtooth waveform superimposed on it. Add a small inductor/cap final filter, & you should be good to go.

    With this approach, the input voltage can swing through a very wide range, and you can still control the output voltage. (when the input voltage is low, and/or the output current load high, the DC pulse will be wide. When the input voltage is high, and/or the output current is low, the pulse is narrow. And, it's very efficient, as the bulk of power loss occurs only when the output driver MOSFET is switching from "On" to "Off", and the reverse.
  5. Mike St

    Mike St Member

    To continue I would need a complete schematic or circuit diagram and parts list. If you provide, I will buy the parts and test your concept. Remember the battery needs over-charge protection, and the headlamp must always stay on during the day. It's the law here in Illinois. Mike ST
  6. ezdzd

    ezdzd Member


    I know this thread is relatively old but its still very amusing. After he gets those schematics for ya would you like him to bring your grocerys over and walk your dog? Come down off it, and put in a little effort. If your ideas are more than just that, this problem "challenge" should be an easy fix. When you do get it figured out, post your findings. If that is too much to ask of you then perhaps you should isolate yourself from reality and wait for the world to wait on you... oh wait.
  7. Mike St

    Mike St Member

    I have spent considerable time and money on the problem already, and just recently, I began working on a new solution, one that is cheaper. So far, I appear to be the only inventor that has developed a solution offering 40-90 watts of power, using a 4 stroke engine. I invite anyone to develop a solution.
  8. HoughMade

    HoughMade Guest

  9. Mike St

    Mike St Member

    I know about the grubee solution and I wish he would offer a complete solution on the engines he ships to the US, but at this point he does not. Why, I don't know. I would prefer this feature standard on all 4 strokes, rather than someone like me developing an add-on, which is always more expensive.
  10. Huntington

    Huntington Member

    I think we all can agree that we prefer this feature standard on all 4 strokes, rather than someone like you developing an add-on.
  11. HseLoMein

    HseLoMein Member

    If i had a 4 stroke to develop i would take you up on your offer, my buddy and I are currently working on a 6v solution for the happy times. my goal is to make a HT vehicle and make it DOT complaint for lighting and possibly horn.
  12. arkives1

    arkives1 Member

    Gosh fellas, I just use a sla 6 volt battery and recharge it when Im parked at home. The battery has 5ah capacity so it will certainly power my light far longer than my tired old back side can stay in the saddle. Of course, I often forget to recharge the darn thing and end up rushing home before dark. I can see the need for onboard charging and the brighter the lights the better we are seen.
  13. Mike St

    Mike St Member

    Anyone who seriously wants to have their dc voltage regulator tested on my 4 stroke MB, I offer to test it. You don't even have to tell me what's in your regulator, just that it would reduce cost. I'm looking for a low cost way to regulate dc voltage to 12 volts, over a wide range of voltage. I do have a system now that works but I regard it as too expensive for most folks. MIke
  14. Scotchmo

    Scotchmo Member

    If you have an HT engine, you can hook the white wire to the 6v battery positive pole through a diode ($1) and it will trickle charge the battery when you ride with the lights off. If you only use your headlight occasionally, you may never need to use a seperate external charger. But you still can if needed.
  15. Or i can use a $20 walmart 12v cordless drill battery and a couple of 12v car lights that light up a bike like a UFO and last for hours and recharges in 1 hour.

    Plus you can use the engine 6v power for a extra set of backup lights.
  16. Mike St

    Mike St Member

    C.mon guys, we're looking for a professional solution here that can light the field ahead with a bright halogen headlamp, and keep this light on all the time, as required by Illinois law. The white wire concept fails for this requirement. We also want to go beyond batteries. Mike
  17. arkives1

    arkives1 Member

    12 volt lighting system

    What's wrong with batteries....works for me. I got two suggestions for ya Mike, move to Wisconsin, we only need lights at night, or dump your bike and get a motorcycle, they already have light systems. If it ain't broke, don't fix it.
  18. HoughMade

    HoughMade Guest

    I'm good with my 7ah battery- full lighting: (front and rear) turn signals, brake and tail, and headlight. Runs for well over 2 hours. However, I do not have to deal with whatever Illinois law is...and it would sure be nice to never have to recharge. In other words, content, but not satisfied.
  19. jbcruisin

    jbcruisin Member

    I got a full lighting system too (except no turn signals). Dual beam head light, brake light,etc. I do what you guys do. Charge my battery with a small charger when it needs it. Would be nice not to have to do that, but it works. Here's where I got my battery & front brake lever with brake light switch in it.

  20. Scotchmo

    Scotchmo Member

    That is incorrect as far as I can tell. I checked the Illinois laws and vehicle code. The consensus seems to be lights only required at night for mopeds or motorized bicycles (same thing in proposed HB1181). HB1181 gets more specific. Not sure if it passed yet, but it spells it out:

    11(625 ILCS 5/11-1507.1) (from Ch. 95 1/2, par. 11-1507.1)
    12 Sec. 11-1507.1. Lamps on mopeds motorized pedalcycles.
    13 Every moped motorized pedalcycle, when in use at nighttime,
    14 shall be equipped with a lamp on the front which shall emit a
    15 white light visible from a distance of at least 500 feet to the
    16 front, and with a red reflector on the rear of a type approved
    17 by the Department which shall be visible from all distances
    18 from 100 feet to 600 feet to the rear when in front of lawful,
    19 low-powered beams of head lamps on a motor vehicle. A lamp
    20 emitting a red light visible from a distance of 500 feet to the
    21 rear may be used in addition to the red reflector.
    22 (Source: P.A. 80-262.)

    Having your headlight running during daylight hours is an added safety feature, even on a moped. It is more important on a motorcycle that mingles with traffic at high speeds. If you are really concerned with safety, a set of turn signals would be a good addition without having the ongoing power draw of a daytime halogen headlight. A small battery system can handle this. But since these are minimal vehicles, I understand those that want to keep equipment to a minimum. A watchful eye and appropriate hand signals work too.