![]() |
|
|||||||
| General Electronics Chat Discussion forum for general chat about anything electronics related, including asking questions about material in the All About Circuits E-book, Worksheets, and Videos. |
|
|
|
Thread Tools | Display Modes |
|
#21
|
||||
|
||||
|
Just add resistors...no need for the motor. Measure the amount of resistance while holding the motor, and use the same value of resistors. The motor is meant to spin to cool itself. You may catch it on fire if you leave it like that.
__________________
-rm- |
|
#22
|
|||
|
|||
|
Well, it will only be on for as long as the blinkers blink. Which wouldn't be too long. I let it go for about 30 seconds straight and felt the motor. It still felt cold =/
I would get the right resistors but...I don't even know how to measuer the resistance of the motor. |
|
#23
|
|||
|
|||
|
Well.wait...Wouldn't I just hook up my multimeter and turn it to ohms. I've never used it. But seems like that would work. See the resistance and get a resistor with the ohms.
Do I just give the motor power, hold the motor and with the multimeter still on there measure resistance or something? How would I do that? |
|
#24
|
||||
|
||||
|
You set you meter to amps. With the circuit running measure the amps. Then hold the motor gears still and measure the amps again.
Use Ohm's law to find resistance: Subtract the two numbers. (amps before and after) This will be the 'I' in ohms law Now take that number and divide it by the voltage at the motor terminals This is the 'V' in ohms law That will result in the resistance in ohms. This is the 'R' in ohms law For instance: first measuement A1=.025 2nd measurement A2= .377 A2-A1=I I=.352 amps Voltage = 13.5v (Voltage measured at the motor terminals) V=13.5 So V/I=R 13.5 / .352 = 38.352 Round that value up to the next closest resistor. Which is 36ohms. For more info: http://en.wikipedia.org/wiki/Ohm's_law
__________________
-rm- |
|
#25
|
|||
|
|||
|
Well, I already had the JB weld curing on the gear. So now I can't...but anyway it works well. Except the power draw also takes away from the headlight, so the headlight blinks. But it only dims.
The headlight always blinks even when the signal lights aren't firing. So I added a switch to it. Works when I need it, but I think I need to add a battery and use that for the LEDs to stop the headlight. That's my project tomorrow. Thanks. You're a lot of help. Just curious, but where do you get all your information from? |
|
| Bookmarks |
| Tags |
| work |
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Video's sometimes don't work | maxpower097 | Feedback and Suggestions | 7 | 12-22-2009 07:36 PM |
| CD4070 2-Input Quad XOR- Will this IC work? | Gold Dust | The Projects Forum | 5 | 08-25-2009 09:33 PM |
| Would using a relay work in this situation? | Gibling | The Projects Forum | 18 | 06-12-2009 11:27 PM |
| 4 Layer PCB: How do via's work? | bagarwal | General Electronics Chat | 1 | 03-18-2009 05:53 PM |
| BJT's don't work like that | Ratch | Off-Topic | 120 | 06-29-2008 08:56 AM |