skittlesRgood Posted May 7, 2013 Report Share Posted May 7, 2013 interesting for sure! that would make sense having 2 different power sources..... 1 for driving and such, and 1 for accesories..... i wonder if therer would be a way to tap into the driving batteries and stepping down voltage to like 14-16v. like if someone was to get their hands on the battery bank needed to power the motors and design a voltage stepdown for bringing it down to 14-16v.... that would probably leave a HUGE amount of amps to pull before voltage drop occurs. that would be crazy expensive to even try but would be interesting to see. There would be so much power loss in that step down you'd probably cut the car's range in half lol. you have to burn off 286v If I did this right, for a 1000w amp at 14v you would need a 2.86ohm resistor rated to 900w. 818w would be burned off and wasted. If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
Herokight Posted May 7, 2013 Author Report Share Posted May 7, 2013 Jesus. Sounds like we'll be some of the last people using gas powered cars then. Unless the technology advances. Lane AKA HeroKight '96 Jeep Cherokee Classic 4x4 R.I.P. Molliboo $200 for new tires, on a jeep!? Is she stealing them or building them with a heat gun and rubber bands? You hear that????That's a category 5 shit storm coming n8: hey you doing today. What's it like being a bitch? you can pm me if you'd like to explain why you arent one. Just like you did for your vs threads. ^^^Rules. Follow them.^^^ Link to comment Share on other sites More sharing options...
ThreehundredC Posted May 7, 2013 Report Share Posted May 7, 2013 just wont go as far with some 18s in the back ,,what if it was reverse the amps ran on gas id be broke Link to comment Share on other sites More sharing options...
Beanz Posted May 7, 2013 Report Share Posted May 7, 2013 But then we can always run some of those high voltage tara amps that are like 200 volts and what not.. Only scary thing is that you'd need like a electrician or something to install those. 240-600v is no joke to be messing around with.. That's why they don't deliver. Yer ass better go sit along the side of the road and wait. You can't expect them to travel up some dirt road in a hick / back woods town. Thats how horror movies start I explain things very simply and use analogies in terms of Pickles, and grape drink, pool noodles and jackhammers...if you can't put 2 and 2 together there man, There simply is not much more I can do. Link to comment Share on other sites More sharing options...
CortezDTV Posted May 8, 2013 Report Share Posted May 8, 2013 I think you'd just deplete your battery reserve. I'd be interested in the specifics on a system in an electric vehicle too. I don't think that all electric cars are on a 12V operating system. This Ours has a step down midule that powered the entire cars 12v system including the stereo Main batts are 20 6v in series making beast voltage over 120v and you charge it by plugging into 240 and dialing the amperage in; lets just say its a wild contraption SCSB Santa Cruz Speaker Box Build logs: Daily Driver Lemon Marquis 2 american bass 750.1s 350.4 on 14 focal 6.5s sq 945 on 4 hertz tweeters Mystery subs http://www.stevemead...__fromsearch__1 The Mustang 'dubbed' Shirley the project from bullet holes to badass http://www.stevemead...cond-skin-time/ Link to comment Share on other sites More sharing options...
Jessica Posted May 8, 2013 Report Share Posted May 8, 2013 One thing to consider is, if you have an electric car and the motors are a/c voltage then you will benefit in the long term. Battery technology will improve and so will motor technology. The real benefit that some of you are missing here is it would be easy to build an amp that runs on 240v or 360v AND, this part is the coolest, you no longer have to convert an d.c. voltage to a.c. voltage for the output stage of the amp. You eliminate that step and the amp is basically a home audio amplifier, you may one day see amps and subs for cars that are all 8ohm. Plus the higher voltage means less amperage drawn, more efficient amps and maybe even more power. Things like a 5k amp maybe be in the price range of 1k amps now. Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
rusty959 Posted May 8, 2013 Report Share Posted May 8, 2013 interesting for sure! that would make sense having 2 different power sources..... 1 for driving and such, and 1 for accesories..... i wonder if therer would be a way to tap into the driving batteries and stepping down voltage to like 14-16v. like if someone was to get their hands on the battery bank needed to power the motors and design a voltage stepdown for bringing it down to 14-16v.... that would probably leave a HUGE amount of amps to pull before voltage drop occurs. that would be crazy expensive to even try but would be interesting to see. There would be so much power loss in that step down you'd probably cut the car's range in half lol. you have to burn off 286v If I did this right, for a 1000w amp at 14v you would need a 2.86ohm resistor rated to 900w. 818w would be burned off and wasted. You did not do that right. Things like dc/dc switching power supplies exist so that you don't have to just burn off power. Now this may not be cheap, but is probably not far off of what it would take to get rid of the heat from a process as you describe. However, as others have stated it would be a much better idea in concept to just run the amps off of the full voltage of the batteries. However in practice, this is a very dangerous idea. While you can touch across 12v with no problems and the n00b that accidentally bridges them will probably just create some sparks, multiple hundreds of volts is no joke. Anything in the neighborhood of 50v is enough to kill you. (its the number ive always heard) Talking anything more than that is never going to be something a diy guy should touch. One slip and you die. One guy at my school accidentally bridged a couple hundred volts I believe it was with a torx wrench a few weeks ago. The end of the torx wrench where it was bridged became a melted stub and the gloves he was wearing were blackened. He was ok due to the protection he was wearing, however having up to date and safe protection isn't something you can trust the general public to. 2013 Subaru BRZ12" Orion HCCA on AQ 22001967 mustang restoration project: http://www.stevemeadedesigns.com/board/topic/110765-mustang-restoration-build-2011-edition/ Youtube: https://www.youtube.com/user/therusty959 Link to comment Share on other sites More sharing options...
Emmet Posted May 8, 2013 Report Share Posted May 8, 2013 interesting for sure! that would make sense having 2 different power sources..... 1 for driving and such, and 1 for accesories..... i wonder if therer would be a way to tap into the driving batteries and stepping down voltage to like 14-16v. like if someone was to get their hands on the battery bank needed to power the motors and design a voltage stepdown for bringing it down to 14-16v.... that would probably leave a HUGE amount of amps to pull before voltage drop occurs. that would be crazy expensive to even try but would be interesting to see. There would be so much power loss in that step down you'd probably cut the car's range in half lol. you have to burn off 286v If I did this right, for a 1000w amp at 14v you would need a 2.86ohm resistor rated to 900w. 818w would be burned off and wasted. You did not do that right. Things like dc/dc switching power supplies exist so that you don't have to just burn off power. Now this may not be cheap, but is probably not far off of what it would take to get rid of the heat from a process as you describe. However, as others have stated it would be a much better idea in concept to just run the amps off of the full voltage of the batteries. However in practice, this is a very dangerous idea. While you can touch across 12v with no problems and the n00b that accidentally bridges them will probably just create some sparks, multiple hundreds of volts is no joke. Anything in the neighborhood of 50v is enough to kill you. (its the number ive always heard) Talking anything more than that is never going to be something a diy guy should touch. One slip and you die. One guy at my school accidentally bridged a couple hundred volts I believe it was with a torx wrench a few weeks ago. The end of the torx wrench where it was bridged became a melted stub and the gloves he was wearing were blackened. He was ok due to the protection he was wearing, however having up to date and safe protection isn't something you can trust the general public to. No it isn't. Voltage won't kill you. Get hit by a 1000v and you might not die if the current is very little. Current is what will kill you. Crack open your chest and put 50mA across your heart however and it will stop. I think you guys are on to something though, given the state of electric cars now and how technology is improving I think companies will start designing amplifiers that run at much higher voltages. Take sound digital for example http://www.soundigital.com.br/produtos/amplificadores/sd30kdhv-smd/ That amp is said to run up to 435 volts. I haven't seen any real world tests but the idea is there. Imagine an amp that makes 30kw on single inputs. And with supercaps the ability to store energy will only get greater. i shook this one kids hand and it just folded in mine. long story short i fucked his girlfriendso.. yeah.. You want this to happen to you? Give decent handshakes people. I was gifted with an innate ability to distribute wholesale ass beatings in a timely and orderly fashion. Link to comment Share on other sites More sharing options...
rusty959 Posted May 8, 2013 Report Share Posted May 8, 2013 interesting for sure! that would make sense having 2 different power sources..... 1 for driving and such, and 1 for accesories..... i wonder if therer would be a way to tap into the driving batteries and stepping down voltage to like 14-16v. like if someone was to get their hands on the battery bank needed to power the motors and design a voltage stepdown for bringing it down to 14-16v.... that would probably leave a HUGE amount of amps to pull before voltage drop occurs. that would be crazy expensive to even try but would be interesting to see. There would be so much power loss in that step down you'd probably cut the car's range in half lol. you have to burn off 286v If I did this right, for a 1000w amp at 14v you would need a 2.86ohm resistor rated to 900w. 818w would be burned off and wasted. You did not do that right. Things like dc/dc switching power supplies exist so that you don't have to just burn off power. Now this may not be cheap, but is probably not far off of what it would take to get rid of the heat from a process as you describe. However, as others have stated it would be a much better idea in concept to just run the amps off of the full voltage of the batteries. However in practice, this is a very dangerous idea. While you can touch across 12v with no problems and the n00b that accidentally bridges them will probably just create some sparks, multiple hundreds of volts is no joke. Anything in the neighborhood of 50v is enough to kill you. (its the number ive always heard) Talking anything more than that is never going to be something a diy guy should touch. One slip and you die. One guy at my school accidentally bridged a couple hundred volts I believe it was with a torx wrench a few weeks ago. The end of the torx wrench where it was bridged became a melted stub and the gloves he was wearing were blackened. He was ok due to the protection he was wearing, however having up to date and safe protection isn't something you can trust the general public to. No it isn't. Voltage won't kill you. Get hit by a 1000v and you might not die if the current is very little. Current is what will kill you. Crack open your chest and put 50mA across your heart however and it will stop. I think you guys are on to something though, given the state of electric cars now and how technology is improving I think companies will start designing amplifiers that run at much higher voltages. Take sound digital for example http://www.soundigital.com.br/produtos/amplificadores/sd30kdhv-smd/ That amp is said to run up to 435 volts. I haven't seen any real world tests but the idea is there. Imagine an amp that makes 30kw on single inputs. And with supercaps the ability to store energy will only get greater. We aren't talking static electricity here. You can't touch something that is 1000v and be all, well, I think im only going to let 10mA through me today. Ohms law applies. You touch that 1000v from a source with low internal resistance like something intending to power a car and you are fucked. Even with dry skin you are going to burn right through which could also expose what you are touching to your lower resistance internals. Edit: additionally we aren't talking about ac which at higher frequencies can pass through a human without harming them due to the skin effect. DC will not do this. 2013 Subaru BRZ12" Orion HCCA on AQ 22001967 mustang restoration project: http://www.stevemeadedesigns.com/board/topic/110765-mustang-restoration-build-2011-edition/ Youtube: https://www.youtube.com/user/therusty959 Link to comment Share on other sites More sharing options...
Herokight Posted May 8, 2013 Author Report Share Posted May 8, 2013 High amperage is what kills you, but I'd have to say shocking yourself isn't really good at all. One thing to consider is, if you have an electric car and the motors are a/c voltage then you will benefit in the long term. Battery technology will improve and so will motor technology. The real benefit that some of you are missing here is it would be easy to build an amp that runs on 240v or 360v AND, this part is the coolest, you no longer have to convert an d.c. voltage to a.c. voltage for the output stage of the amp. You eliminate that step and the amp is basically a home audio amplifier, you may one day see amps and subs for cars that are all 8ohm. Plus the higher voltage means less amperage drawn, more efficient amps and maybe even more power. Things like a 5k amp maybe be in the price range of 1k amps now. I never even considered that... Hmmm... That is a very interesting concept. So AC power = more effeciency + more wattage? Lane AKA HeroKight '96 Jeep Cherokee Classic 4x4 R.I.P. Molliboo $200 for new tires, on a jeep!? Is she stealing them or building them with a heat gun and rubber bands? You hear that????That's a category 5 shit storm coming n8: hey you doing today. What's it like being a bitch? you can pm me if you'd like to explain why you arent one. Just like you did for your vs threads. ^^^Rules. Follow them.^^^ Link to comment Share on other sites More sharing options...
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