Author Topic: making overdriven components last longer  (Read 3028 times)

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Offline Ground_Loop

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Re: making overdriven components last longer
« Reply #25 on: March 30, 2020, 05:46:01 pm »
just because you're providing power to a 100W load, it doesn't mean the resistor is dissipating 100W.  Do the calcs and determine what you need.
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Offline AVGresponding

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Re: making overdriven components last longer
« Reply #26 on: March 30, 2020, 06:31:17 pm »
nuqDaq yuch Dapol?
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Offline krayvonkTopic starter

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Re: making overdriven components last longer
« Reply #27 on: March 30, 2020, 08:26:38 pm »
Need a hydraulics expert.
 

Offline AVGresponding

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Re: making overdriven components last longer
« Reply #28 on: March 30, 2020, 08:41:54 pm »
nuqDaq yuch Dapol?
Addiction count: Agilent-AVO-BlackStar-Brymen-Chauvin Arnoux-Fluke-GenRad-Hameg-HP-Keithley-IsoTech-Mastech-Megger-Metrix-Micronta-Racal-RFL-Siglent-Solartron-Tektronix-Thurlby-Time Electronics-TTi-UniT
 

Offline krayvonkTopic starter

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Re: making overdriven components last longer
« Reply #29 on: March 30, 2020, 10:04:12 pm »
That guys have a creamation over his big truck there.
 

Offline Mechatrommer

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Re: making overdriven components last longer
« Reply #30 on: March 30, 2020, 10:29:24 pm »
And how do you end with 100Watts in a 1Watt rated device?
Post a realistic problem and not some "omg I'm so random"..
i think its related to this thread where he tried to implement a super wheatstone bridge as linear dropper controlling motor speed and direction..
https://www.eevblog.com/forum/beginners/100watt-400-watt-transistor-to-drive-dc-motor/msg2988810/#msg2988810
if you can relate these 2 threads, everything will come to sense again. i think he want to use 1-3 ohm to drop 100W+ and his problem now is economy (budget).
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 
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Offline krayvonkTopic starter

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Re: making overdriven components last longer
« Reply #31 on: March 30, 2020, 10:37:11 pm »
Ive got a crazy random idea,  how about we use voltage doublers instead of transistors!!!  =D
 

Online tggzzz

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Re: making overdriven components last longer
« Reply #32 on: March 30, 2020, 10:40:03 pm »
Starting to really get a trollish vibe from krayvonk's posts lately.

Yes, I agree.

I remember the times when trolls posted interesting questions :(

It looks like he is on Simon's radar :)
« Last Edit: March 30, 2020, 10:57:11 pm by tggzzz »
There are lies, damned lies, statistics - and ADC/DAC specs.
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Offline free_electron

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Re: making overdriven components last longer
« Reply #33 on: March 30, 2020, 10:42:06 pm »
Of course you can do that. Just not for long ...

how do you think they make TVS diodes that can handle 600 watt in a piffling SMA package ? 600 watts , for a few microseconds ... check the datasheets.
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Offline Mechatrommer

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Re: making overdriven components last longer
« Reply #34 on: March 30, 2020, 10:51:13 pm »
no one will ever use linear drop to control motor speed today period, motor has varying impedance vs load, try giving some push to your motor in the other thread, the speed will screwed up tremendously or load profile will be so poor. everybody is using some sort of smps, buck regulation or PWM nowadays. at most in AC world they use capacitor to shift AC phase to make an AC motor run i'm not aware though linear dropper in AC motor, i'm not the expert. as i said, get a teacher or learn from others/internet how to do it. if you just pop out with some idea, you can waste your time alot. good luck! edit: but at least now you know how to make a good water heater, thats a good thing though while trying and error. ;)
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 

Offline Manul

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Re: making overdriven components last longer
« Reply #35 on: March 30, 2020, 11:07:54 pm »
One (and possibly the only) useful thing to be said here is that you can parallel resistors (and usually diodes) to get bigger power rating. There are situations when it can be useful. 10x 1W resistors will have a total power rating of 10W.
 

Offline mikerj

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Re: making overdriven components last longer
« Reply #36 on: March 31, 2020, 08:53:00 am »
Ive got a crazy random idea,  how about we use voltage doublers instead of transistors!!!  =D

I've got another crazy random idea:  take your childish trolling somewhere else.
 
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Online tggzzz

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Re: making overdriven components last longer
« Reply #37 on: March 31, 2020, 09:13:40 am »
Ive got a crazy random idea,  how about we use voltage doublers instead of transistors!!!  =D

I've got another crazy random idea:  take your childish trolling somewhere else.

An example of that is the "connecting to 0 volts" thread he started with

"cant u just connect to any piece of metal, and its as good as a 0 volts connection?"

Where he is referring to this technique:


https://www.eevblog.com/forum/beginners/connecting-to-0-volts/msg2965014/#msg2965014
« Last Edit: March 31, 2020, 09:16:02 am by tggzzz »
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 
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Offline Electro Detective

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Re: making overdriven components last longer
« Reply #38 on: March 31, 2020, 10:24:45 am »

Say ive got a 1 watt component,  but im putting 100 watts through it. 
Is there any way I could stop it from overheating - and still have it in the circuit?
Or is 1 -> 100 way too much...

sorry.  i mean if it was a diode or resistor.


You could wire in series, a ballast and or chain of moist troll accusers that kicks in at 2 watts and beyond, to save the 1 watt resistor  :-+
 
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