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    #41
    Re: Master power switch for E-bike ideas

    just put a fucking 2pole switch on it and stop over-complicating things!

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      #42
      Re: Master power switch for E-bike ideas

      Naah - too basic
      Wattevah...

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        #43
        Re: Master power switch for E-bike ideas

        I don't think you really can "take off" with the resistor regardless. Worst case it'll run really slowly and the resistor will burn out... Put an appropriately sized 100 ohm resistor there, you can't even get one twentieth of a horsepower out of the motor - that's not going anywhere fast.

        Could stick a 120V incandescent bulb there instead of a resistor...still not going anywhere fast, and really cheap.

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          #44
          Re: Master power switch for E-bike ideas

          Originally posted by eccerr0r View Post
          Could stick a 120V incandescent bulb there instead of a resistor...still not going anywhere fast, and really cheap.
          This is actually a good idea and I thought of it myself a while ago, though the resistance would be all over the place. It's bulkier too, so space is a bit of an issue. Not sure what the "idle" power consumption would be (with the FET off), because the bulb would be in series with the controller box all the time, so long as the battery's connected, but the resistance is probably high enough the power consumption would also be negligible, even with a stone-cold filament.
          Wattevah...

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            #45
            Re: Master power switch for E-bike ideas

            bulk? use a linear halogen tube - they are like a short pencil.

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              #46
              Re: Master power switch for E-bike ideas

              Yeah but I would use a 250 watt version not the 500 watt version
              9 PC LCD Monitor
              6 LCD Flat Screen TV
              30 Desk Top Switching Power Supply
              10 Battery Charger Switching Power Supply for Power Tool
              6 18v Lithium Battery Power Boards for Tool Battery Packs
              1 XBox 360 Switching Power Supply and M Board
              25 Servo Drives 220/460 3 Phase
              6 De-soldering Station Switching Power Supply 1 Power Supply
              1 Dell Mother Board
              15 Computer Power Supply
              1 HP Printer Supply & Control Board * lighting finished it *

              These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
              1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
              2 Hem Saw Computer Stack Board
              All of these had CAPs POOF
              All of the mosfet that are taken out by bad caps

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                #47
                Re: Master power switch for E-bike ideas

                Originally posted by stj View Post
                bulk? use a linear halogen tube - they are like a short pencil.
                Might work. Would still need a holder for it....or I could go ghetto and solder to it directly I already grabbed a 50w resistor from Ali for like 2 bucks which has lugs on the end already. Like I said: no rush, since it's going to be another 4-5 months until I can go for a ride on this thing

                Originally posted by sam_sam_sam View Post
                Yeah but I would use a 250 watt version not the 500 watt version
                Because 250w = higher resistance ?
                Last edited by Dannyx; 12-12-2021, 06:44 AM.
                Wattevah...

                Comment


                  #48
                  Re: Master power switch for E-bike ideas

                  Yes and less current than 500 watt would be
                  If you have an old light fixture that uses this type of bulb then you just need to figure out how to use the holders together so it will work maybe make it on a 3 D printer
                  Last edited by sam_sam_sam; 12-12-2021, 07:34 AM.
                  9 PC LCD Monitor
                  6 LCD Flat Screen TV
                  30 Desk Top Switching Power Supply
                  10 Battery Charger Switching Power Supply for Power Tool
                  6 18v Lithium Battery Power Boards for Tool Battery Packs
                  1 XBox 360 Switching Power Supply and M Board
                  25 Servo Drives 220/460 3 Phase
                  6 De-soldering Station Switching Power Supply 1 Power Supply
                  1 Dell Mother Board
                  15 Computer Power Supply
                  1 HP Printer Supply & Control Board * lighting finished it *

                  These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%
                  1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                  2 Hem Saw Computer Stack Board
                  All of these had CAPs POOF
                  All of the mosfet that are taken out by bad caps

                  Comment


                    #49
                    Re: Master power switch for E-bike ideas

                    PLA and incandescent bulbs of any type do NOT mix.

                    And no, don't use those high wattage halogens, you want low wattage bulbs for their resistance, like a 4W night light bulb... or less. Enough to charge the capacitors, not enough to run the bike in any capacity. Unless the intent is to give a thief a false sense of hope?

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