interior light question...
#3
Originally posted by Ravq
It's 12v. I measured it with a multimeter.
It's 12v. I measured it with a multimeter.
#5
Transformers
Originally posted by _DRU_
... is there like a mini transformer or something i can buy like at radiosahck? thanks
... is there like a mini transformer or something i can buy like at radiosahck? thanks
#8
Re: Re: Re: Transformers
Originally posted by Daniel B. Martin
Mzmtg said you could use a dropping resistor. I suppose that might serve your purpose... a purpose you did not specify.
Mzmtg said you could use a dropping resistor. I suppose that might serve your purpose... a purpose you did not specify.
#9
Dropping resistor
Originally posted by _DRU_
well im changing the lighting unit but it requires 9v, not 12v. so i was gonna stick it up somehow but i need to change the voltage output. now, is a dropping resistor something i just put into the wiring(circuit) or does it require lots of work? and do you think i can find it at a local radio shack? thanks
well im changing the lighting unit but it requires 9v, not 12v. so i was gonna stick it up somehow but i need to change the voltage output. now, is a dropping resistor something i just put into the wiring(circuit) or does it require lots of work? and do you think i can find it at a local radio shack? thanks
#10
I think Daniel is correct.
If I remember right, the typical bulb filament has lower resistance than nominal when it is cold. Therefore at the moment the 9V light is turned on, the current through the filament is higher than when it is warmed up, causing the added dropping resistor to drop a little more voltage so that the 9V light has less than 9V across it.
Since the filament is not a big mass, it'll reach nominal operation in almost no time. We probably can't tell there is a delay, compared to a fixed 9V connected to the 9V light.
If I remember right, the typical bulb filament has lower resistance than nominal when it is cold. Therefore at the moment the 9V light is turned on, the current through the filament is higher than when it is warmed up, causing the added dropping resistor to drop a little more voltage so that the 9V light has less than 9V across it.
Since the filament is not a big mass, it'll reach nominal operation in almost no time. We probably can't tell there is a delay, compared to a fixed 9V connected to the 9V light.
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6th Generation Maxima (2004-2008)
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09-02-2015 09:53 PM