Recent content by DrAlloway

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    Switch ratings conversion from AC to DC

    I have a push-button switch rated at 3 amps @ 125vAC which I want to use in a 12v DC application (my motorcycle). ((on ground line under continuous use {headlight})) Does the AC rating translate as 3 amp for 125v AC hence 375 watts 375 watts for 60v AC hence 6.25 amps or 375...
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    Need Peltier Devices? John is Looking for Help!

    So all you guys are telling me that my design won't work. I was going to get a bunch of these Peltiers and wire them into my motorcycle vest and be cool riding down the road in the summer.
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    Need Peltier Devices? John is Looking for Help!

    I just got a peltier (12v 60w TEC1-12706) and tried to check it out. I have never had a peltier before and don't really know how they work. Mine has a red and black lead so I connected them accordingly to a 12v DC trickle charger. BOTH SIDES got hot (very hot right away). I thought a...
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    Will this wire burn me or melt my clothes ?

    Wow - excellent find - I looked for a cheap PWM for 12vDC and couldn't find one. So I designed my electric motorcycle clothes with multiple circuits - each with a different wattage - so I just plug in whatever circuit is appropriate for that day's weather. If I had this PWM when I started I...
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    Which Diodes do I need for this application?

    Yeah, they have a metal tab with a mounting hole. So my plan is to attach the wire from the Flasher Relay to one anode and the wire from the Brake Switch to the other anode. Then simply run the wire from the Bulb to the common cathode. They are 10 amp diodes (in a dual package) and I will...
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    Which Diodes do I need for this application?

    I found a Schottkey diode for 85 cents that is Dual packaged It is 10 amps, 100 volts. It has 3 leads: 2 IN and 1 OUT I assume that means 10amp diode on EACH lead IN?? This will make wiring easier and smaller (I think). As only 1 diode would be working at any given time, this could help...
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    Which Diodes do I need for this application?

    I assume when a diode dies, that it won't conduct current in either direction ?? These diodes will be located under my passenger seat with lots of other wires and connectors. I would typically wrap them heavily with electricians tape for insulation. However, with the heat dissipation issue...
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    Which Diodes do I need for this application?

    I have found (so far) 3 diodes that meet my basic specs of 3+ amps and 15+ volts. However, I have no idea what the differences between them are: Schottkey diode 10 amp, 100 PIV for 85cents each Rectifier diode 6 amp, 200 volts at 90cents for two High-Voltage UltraFast Rectifier 15A...
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    Which Diodes do I need for this application?

    I assume the heat generated is from the voltage drop across the diode - when the diode is conducting current. If I understand your wiring diagram correctly - the diodes will only conduct current when the light is either flashing or braking. Both are short lived events. So I am just going to...
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    Which Diodes do I need for this application?

    Very good to know - the slight dimming of my light is (I assume) from the voltage drop of the diode. So if I find a diode with 100volt PIV or 50volt PIV they will both work the same in my application.
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    Which Diodes do I need for this application?

    Excellent - our diagrams are topologically the same although mine sure doesn't look as good as yours. Back to the diodes I have to buy, if you please: ? the voltage on a diode is the Maximum it can prevent from flowing 'backwards' ?? so, in my case, anything over 15 volts will...
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    Which Diodes do I need for this application?

    Thanks to you, I THINK I have a diagram that will work. I have seen posts on this website with wiring diagrams - how do I do that ? Then I could post what I think will work and you could check it. In words: four 5 amp diodes, one each on wires from brake switch to each turn signal, and...
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    Which Diodes do I need for this application?

    In the USA brake lights do have to be red. I replaced all 4 of the original Turn Signals on my bike with larger, double-sided Turn Signals. The backs are red and the fronts are amber. It is legal to have Turn Signals be red. I have already installed a set of red LEDs as additional brake...
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    Which Diodes do I need for this application?

    Thanks, vk6kro, now I am confused on a higher level - the definition of progress. I forgot about the front Turn Signals - on most bikes they are not also running lights. But I converted mine so they are both running lights and flasher ((so I have 4 running and 4 flashers)). Anyway that...
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