On Jun 22, 7:00=A0pm, RST Engineering <jwei...@gmail.com> wrote:> On Wed, 22 Jun 2011 18:46:07 -0700 (PDT), linnix > > > > > > > > > > <m...@linnix.info-for.us> wrote: > >On Jun 22, 3:52 pm, ehsjr <eh...@nospamverizon.net> wrote: > >> linnix wrote: > > >> <snip> > > >> > Yes, i am trying to understand where is that magical voltage spike > >> > coming from. > > >> L*dI/dT where I is whatever current was flowing into the battery > >> when it was disconnected. > > >> Ed > > >The load voltage dropped from 12V to 9V, so current was flowing out of > >the battery when connected. > > Bull shit, troll. =A0Will you PLEASE just let this thread die. =A0 > > JimI am just answering his question.
Alternator problem
Started by ●June 18, 2011
Reply by ●June 22, 20112011-06-22
Reply by ●June 22, 20112011-06-22
On Wed, 22 Jun 2011 18:46:07 -0700 (PDT), linnix <me@linnix.info-for.us> wrote:>On Jun 22, 3:52�pm, ehsjr <eh...@nospamverizon.net> wrote: >> linnix wrote: >> >> <snip> >> >> >> >> > Yes, i am trying to understand where is that magical voltage spike >> > coming from. >> >> L*dI/dT �where I is whatever current was flowing into the battery >> when it was disconnected. >> >> Ed > >The load voltage dropped from 12V to 9V, so current was flowing out of >the battery when connected.I'm beginning to seriously question your abilities as an electrical engineer :-( Do you work for Larkin ?:-) ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Reply by ●June 23, 20112011-06-23
On Jun 22, 7:33=A0pm, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My- Web-Site.com> wrote:> On Wed, 22 Jun 2011 18:46:07 -0700 (PDT), linnix > > > > > > > > > > <m...@linnix.info-for.us> wrote: > >On Jun 22, 3:52 pm, ehsjr <eh...@nospamverizon.net> wrote: > >> linnix wrote: > > >> <snip> > > >> > Yes, i am trying to understand where is that magical voltage spike > >> > coming from. > > >> L*dI/dT where I is whatever current was flowing into the battery > >> when it was disconnected. > > >> Ed > > >The load voltage dropped from 12V to 9V, so current was flowing out of > >the battery when connected.I am just saying your guess (in) is as good as mine (out).> > I'm beginning to seriously question your abilities as an electrical > engineer :-( > > Do you work for Larkin ?:-) >i guess you guys are not really interested in real discussions. Look, the alternator was (and still is) running very weak in idle. It might be defective or there might be other issues. The output voltage could run above the battery, but most likely below it. There are enough resistive load to clamp down the voltage as well. Yes, there could be damage to something, but so could static. This is not something by design, I am just trying to track down the problem.
Reply by ●June 23, 20112011-06-23
On Mon, 20 Jun 2011 14:43:19 -0700 (PDT), linnix <me@linnix.info-for.us> wrote:>On Jun 20, 7:33=A0am, Jim Thompson =<To-Email-Use-The-Envelope-I...@On-My->Web-Site.com> wrote: >> On Sun, 19 Jun 2011 20:11:36 -0700 (PDT), linnix >> >><snip>>> >I follow reasonable suggestions, like grounding the alternator with >> >battery terminal, as the other poster said. =A0I just don't buy the =idea>> >of hundreds of volt surging into 20A to 30A of load. =A0When i >> >disconnected the battery, the head light dimmed, not brightened. ==A0So,>> >i am getting too little power, not too much. =A0Engineering is about >> >trials and errors, and eliminating the unknowns, within reasons. =A0I >> >don't claim to know everything about charging. >> >> You are rapidly proving you don't understand alternators. >> > >So, you are saying the atlernator is dumping 400V * 30A or 12000W into >the load?I tossed "ford load dump spec" at a search engine and found many fascinating things. Like: EM_test_LD_200_datasheet.pdf http://www.emtest.com/products/overview_ld200.php And: http://www.electronicspoint.com/surviving-automotive-load-dump-t72383p5.h= tml
Reply by ●June 23, 20112011-06-23
On Jun 22, 8:51=A0pm, josephkk <joseph_barr...@sbcglobal.net> wrote:> On Mon, 20 Jun 2011 14:43:19 -0700 (PDT), linnix <m...@linnix.info-for.us= > > wrote: > > > > > > >On Jun 20, 7:33=A0am, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My=-> >Web-Site.com> wrote: > >> On Sun, 19 Jun 2011 20:11:36 -0700 (PDT), linnix > > <snip> > >> >I follow reasonable suggestions, like grounding the alternator with > >> >battery terminal, as the other poster said. =A0I just don't buy the i=dea> >> >of hundreds of volt surging into 20A to 30A of load. =A0When i > >> >disconnected the battery, the head light dimmed, not brightened. =A0S=o,> >> >i am getting too little power, not too much. =A0Engineering is about > >> >trials and errors, and eliminating the unknowns, within reasons. =A0I > >> >don't claim to know everything about charging. > > >> You are rapidly proving you don't understand alternators. > > >So, you are saying the atlernator is dumping 400V * 30A or 12000W into > >the load? > > I tossed "ford load dump spec" at a search engine and found many > fascinating things. > > Like: > > EM_test_LD_200_datasheet.pdfhttp://www.emtest.com/products/overview_ld200=.php> > And:http://www.electronicspoint.com/surviving-automotive-load-dump-t72383=... Yes, absolutely, for normal alternator/regulator. But i have an alternator that is generating voltage below the battery, and is slowly draining and killing it.
Reply by ●June 23, 20112011-06-23
On 6/22/2011 11:16 PM, linnix wrote:> On Jun 22, 7:33 pm, Jim Thompson<To-Email-Use-The-Envelope-I...@On-My- > Web-Site.com> wrote: >> On Wed, 22 Jun 2011 18:46:07 -0700 (PDT), linnix >> >> >> >> >> >> >> >> >> >> <m...@linnix.info-for.us> wrote: >>> On Jun 22, 3:52 pm, ehsjr<eh...@nospamverizon.net> wrote: >>>> linnix wrote: >> >>>> <snip> >> >>>>> Yes, i am trying to understand where is that magical voltage spike >>>>> coming from. >> >>>> L*dI/dT where I is whatever current was flowing into the battery >>>> when it was disconnected. >> >>>> Ed >> >>> The load voltage dropped from 12V to 9V, so current was flowing out of >>> the battery when connected. > > I am just saying your guess (in) is as good as mine (out).Only we're not guessing, you are. Or you're being a troll, intentionally inflaming the posters with stupid statements that have no basis in reality or engineering.> >> >> I'm beginning to seriously question your abilities as an electrical >> engineer :-( >> >> Do you work for Larkin ?:-) >> > > i guess you guys are not really interested in real discussions.Discussion? We tell you something and you proceed to tell everyone they are wrong. That's not discussion, that stupidity.> Look, > the alternator was (and still is) running very weak in idle. It might > be defective or there might be other issues. The output voltage could > run above the battery, but most likely below it. There are enough > resistive load to clamp down the voltage as well. Yes, there could be > damage to something, but so could static. > > This is not something by design, I am just trying to track down the > problem. >-- I'm never going to grow up.
Reply by ●June 23, 20112011-06-23
On 6/23/2011 12:30 AM, linnix wrote:> Yes, absolutely, for normal alternator/regulator. But i have an > alternator that is generating voltage below the battery, and is slowly > draining and killing it.Go away you fuckwit retard... Go far, far away. You know diddly squat about electronics, engineering, alternators, cars, or most anything else. You are simply a stupid, moronic troll. Listen to this duckweed: the alternator, unless defective, can't "drain and kill..." the battery. -- I'm never going to grow up.
Reply by ●June 23, 20112011-06-23
On Wed, 22 Jun 2011 20:16:03 -0700 (PDT), linnix <me@linnix.info-for.us> wrote:>On Jun 22, 7:33�pm, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My- >Web-Site.com> wrote: >> On Wed, 22 Jun 2011 18:46:07 -0700 (PDT), linnix >> >> >> >> >> >> >> >> >> >> <m...@linnix.info-for.us> wrote: >> >On Jun 22, 3:52 pm, ehsjr <eh...@nospamverizon.net> wrote: >> >> linnix wrote: >> >> >> <snip> >> >> >> > Yes, i am trying to understand where is that magical voltage spike >> >> > coming from. >> >> >> L*dI/dT where I is whatever current was flowing into the battery >> >> when it was disconnected. >> >> >> Ed >> >> >The load voltage dropped from 12V to 9V, so current was flowing out of >> >the battery when connected. > >I am just saying your guess (in) is as good as mine (out). > >> >> I'm beginning to seriously question your abilities as an electrical >> engineer :-( >> >> Do you work for Larkin ?:-) >> > >i guess you guys are not really interested in real discussions. Look, >the alternator was (and still is) running very weak in idle. It might >be defective or there might be other issues. The output voltage could >run above the battery, but most likely below it. There are enough >resistive load to clamp down the voltage as well. Yes, there could be >damage to something, but so could static. > >This is not something by design, I am just trying to track down the >problem.You keep ignoring the fact that an alternator is a current-controlled current source. You keep hanging your hat on voltage and are not understanding how this works. What is the voltage at engine idle, alternator connected to battery, no accessories on? (Though you may have already killed your regulator by running without battery.) ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Reply by ●June 23, 20112011-06-23
On Jun 23, 8:13=A0am, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My- Web-Site.com> wrote:> On Wed, 22 Jun 2011 20:16:03 -0700 (PDT), linnix > > > > > > > > > > <m...@linnix.info-for.us> wrote: > >On Jun 22, 7:33=A0pm, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My=-> >Web-Site.com> wrote: > >> On Wed, 22 Jun 2011 18:46:07 -0700 (PDT), linnix > > >> <m...@linnix.info-for.us> wrote: > >> >On Jun 22, 3:52 pm, ehsjr <eh...@nospamverizon.net> wrote: > >> >> linnix wrote: > > >> >> <snip> > > >> >> > Yes, i am trying to understand where is that magical voltage spik=e> >> >> > coming from. > > >> >> L*dI/dT where I is whatever current was flowing into the battery > >> >> when it was disconnected. > > >> >> Ed > > >> >The load voltage dropped from 12V to 9V, so current was flowing out o=f> >> >the battery when connected. > > >I am just saying your guess (in) is as good as mine (out). > > >> I'm beginning to seriously question your abilities as an electrical > >> engineer :-( > > >> Do you work for Larkin ?:-) > > >i guess you guys are not really interested in real discussions. =A0Look, > >the alternator was (and still is) running very weak in idle. =A0It might > >be defective or there might be other issues. =A0The output voltage could > >run above the battery, but most likely below it. =A0There are enough > >resistive load to clamp down the voltage as well. =A0Yes, there could be > >damage to something, but so could static. > > >This is not something by design, =A0I am just trying to track down the > >problem. > > You keep ignoring the fact that an alternator is a current-controlled > current source. =A0 > > You keep hanging your hat on voltage and are not understanding how > this works. =A0 > > What is the voltage at engine idle, alternator connected to battery, > no accessories on?12.4V with headlight. Headlight is on all the time. Did not try it without.> > (Though you may have already killed your regulator by running without > battery.)Brand new purchased and installed. Measured before disconnecting
Reply by ●June 23, 20112011-06-23
On Thu, 23 Jun 2011 08:50:40 -0700 (PDT), linnix <me@linnix.info-for.us> wrote:>On Jun 23, 8:13�am, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My- >Web-Site.com> wrote: >> On Wed, 22 Jun 2011 20:16:03 -0700 (PDT), linnix >> >> >> >> >> >> >> >> >> >> <m...@linnix.info-for.us> wrote: >> >On Jun 22, 7:33�pm, Jim Thompson <To-Email-Use-The-Envelope-I...@On-My- >> >Web-Site.com> wrote: >> >> On Wed, 22 Jun 2011 18:46:07 -0700 (PDT), linnix >> >> >> <m...@linnix.info-for.us> wrote: >> >> >On Jun 22, 3:52 pm, ehsjr <eh...@nospamverizon.net> wrote: >> >> >> linnix wrote: >> >> >> >> <snip> >> >> >> >> > Yes, i am trying to understand where is that magical voltage spike >> >> >> > coming from. >> >> >> >> L*dI/dT where I is whatever current was flowing into the battery >> >> >> when it was disconnected. >> >> >> >> Ed >> >> >> >The load voltage dropped from 12V to 9V, so current was flowing out of >> >> >the battery when connected. >> >> >I am just saying your guess (in) is as good as mine (out). >> >> >> I'm beginning to seriously question your abilities as an electrical >> >> engineer :-( >> >> >> Do you work for Larkin ?:-) >> >> >i guess you guys are not really interested in real discussions. �Look, >> >the alternator was (and still is) running very weak in idle. �It might >> >be defective or there might be other issues. �The output voltage could >> >run above the battery, but most likely below it. �There are enough >> >resistive load to clamp down the voltage as well. �Yes, there could be >> >damage to something, but so could static. >> >> >This is not something by design, �I am just trying to track down the >> >problem. >> >> You keep ignoring the fact that an alternator is a current-controlled >> current source. � >> >> You keep hanging your hat on voltage and are not understanding how >> this works. � >> >> What is the voltage at engine idle, alternator connected to battery, >> no accessories on? > >12.4V with headlight. Headlight is on all the time. Did not try it >without. > >> >> (Though you may have already killed your regulator by running without >> battery.) > >Brand new purchased and installed. Measured before disconnecting(1) Check the cells of the battery with a hydrometer. You may have a shorted cell. (2) Where does the voltage go to when you rev up the engine? ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
