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Suzuki GS150R

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  • #1066
    Originally posted by abhijeet080808 View Post
    If the earthing of the stock regulator fails, it will result in everything going for a toss. Earthing is very important. But the custom rectifier which I am using on my bike is not a critical item like that. It will not fail that way!
    custom rectifier!
    what the difference between it and the stock one

    and do you hold any info bout bike CDI ?
    not any bike in particular ,,,,,,,,,
    Hope is a good thing ,
    may be the best of things and
    no good thing ever dies .

    Get busy living or get busy dying .

    - The Shawshank Redemption .

    Comment

    • #1067
      Originally posted by abhijeet080808 View Post
      You are welcome. I have just completed my B.E. degree in Electronics & Telecomm. Looking forward to joining M.E. course next year.
      All the best

      Comment

      • #1068
        Originally posted by outworldly maniac View Post
        custom rectifier!
        what the difference between it and the stock one

        and do you hold any info bout bike CDI ?
        not any bike in particular ,,,,,,,,,
        Stock one is rectifier + regulator in one unit. I needed another rectifier only, so built it myself. If any bike has regulator and rectifier separately you can use it without building anything (Maybe bullet). I do know something abt CDI. Any specific question?
        Your biking tells a lot about the person you are!

        Comment

        • #1069
          Originally posted by abhijeet080808 View Post
          You are welcome. I have just completed my B.E. degree in Electronics & Telecomm. Looking forward to joining M.E. course next year.
          best of luck

          Originally posted by abhijeet080808 View Post
          Stock one is rectifier + regulator in one unit. I needed another rectifier only, so built it myself. If any bike has regulator and rectifier separately you can use it without building anything (Maybe bullet). I do know something abt CDI. Any specific question?
          naah ........ just asked
          Hope is a good thing ,
          may be the best of things and
          no good thing ever dies .

          Get busy living or get busy dying .

          - The Shawshank Redemption .

          Comment

          • #1070
            Very useful discussion, all! Keep it up

            Headlight are real weakness, and if this can be solved, then this bike is perfect.

            Originally posted by ssivakumar.r View Post
            BTW i saw some post posted by one suzuki showroom person (found inbetween the eco-power mode discussion) he may tell us the correct information.
            I don't remember any Suzuki person posting, and I was following that discussion closely! Can you pls check it in your time?

            @maniac: I'll support bubbly in the points. Headlights, brakes and the 3.5k resonance are the only 3 areas I find the bike to be not perfect. Rest is good for me

            Originally posted by ssivakumar.r View Post
            there are two advantages of AC over DC

            1. AC voltage can be stepped up or stepped down using a transformer (i think this is not applicable in bikes)

            2.most important thing - In bikes we rev the engine right from 1000rpm to 10000rpm so do the alternator. In DC generator the voltage is directly proportional to the speed so for EG if you get 12V @1000rpm then you get 120V @10000rpm

            In AC generator the frequency is directly proportional to the speed and voltage becomes constant after certain speed. thats why people are using AC generators instead of DC

            and finally during shock (when current passes through our body) it throw us and save from major injury... not in the case of DC
            I think there is an error in your 2nd point. In DC, the current is fixed at given value, it is not generated. So it doesn't rise to 12000v at 10000rpm, or else all the cars/new pulsars would go boom at highways!

            @abhijeet: good knowledget buddy. Nice to have you on this discussion.

            Comment

            • #1071
              Originally posted by animeher View Post
              I think there is an error in your 2nd point. In DC, the current is fixed at given value, it is not generated. So it doesn't rise to 12000v at 10000rpm, or else all the cars/new pulsars would go boom at highways!
              but even in cars and trucks alternators(AC generators) are used... i think they used rectifier to convert to DC...

              I will refer it again

              Comment

              • #1072
                Whenever I keep my bike in the rain for about half an hour, the tacho meter doesnt work, rest all thing in digital console works fine. I had this same problem in my Fiero F2 ; that after bike getting drenched in rain the tacho meter alone doesnt work for a day. But in GS the case is only for 6-7 Kms there after it starts working.

                Anybody till now faced this issue?

                Comment

                • #1073
                  Originally posted by ssivakumar.r View Post
                  but even in cars and trucks alternators(AC generators) are used... i think they used rectifier to convert to DC...

                  I will refer it again
                  Earlier cars used DC generators - they were known as Dynamo. Newer cars and bikes use AC generators - also called Alternator.

                  A generator inherently generates AC only. In case of a dynamo, it was converted to DC using commutator and brushes. But these commutator tend to wear out the brushes. So, alternators are used nowadays. They do not need commutators. Instead they use slip rings which are relatively easier on the brushes. Here the AC to DC conversion is done using semiconductor diodes instead. Also, alternators are lighter too. This allows them to rotate at a higher speed and hence develop more power.

                  You may want to look here here and here
                  Your biking tells a lot about the person you are!

                  Comment

                  • #1074
                    Originally posted by abhijeet080808 View Post
                    Earlier cars used DC generators - they were known as Dynamo. Newer cars and bikes use AC generators - also called Alternator.

                    A generator inherently generates AC only. In case of a dynamo, it was converted to DC using commutator and brushes. But these commutator tend to wear out the brushes. So, alternators are used nowadays. They do not need commutators. Instead they use slip rings which are relatively easier on the brushes. Here the AC to DC conversion is done using semiconductor diodes instead. Also, alternators are lighter too. This allows them to rotate at a higher speed and hence develop more power.

                    You may want to look here here and here
                    thats what i am thinking... still they are using AC generator in bike like new pulsars

                    @animeher
                    I am sure... we studied in 10th an 11th physics that the output voltage is proportional to speed in DC generator.

                    For your information... you heard of tachogenerator (one of the device used to get feed-back from servo motor) its a small DC generator, by its value of DC output voltage they measure the speed.
                    Last edited by ssivakumar.r; 06-12-2009, 01:07 PM. Reason: more info

                    Comment

                    • #1075
                      Originally posted by abhijeet080808 View Post

                      Here the AC to DC conversion is done using semiconductor diodes instead. Also, alternators are lighter too. This allows them to rotate at a higher speed and hence develop more power.
                      those semiconductors system in all make the rectifier rite?
                      changing the wave form and making ac to dc?
                      Hope is a good thing ,
                      may be the best of things and
                      no good thing ever dies .

                      Get busy living or get busy dying .

                      - The Shawshank Redemption .

                      Comment

                      • #1076
                        Originally posted by ssivakumar.r View Post
                        thats what i am thinking... still they are using AC generator in bike like new pulsars

                        @animeher
                        I am sure... we studied in 10th an 11th physics that the output voltage is proportional to speed in DC generator.

                        For your information... you heard of tachogenerator (one of the device used to get feed-back from servo motor) its a small DC generator, by its value of DC output voltage they measure the speed.
                        Voltage both in case of AC as well as DC generator increases with speed.

                        Originally posted by outworldly maniac View Post
                        those semiconductors system in all make the rectifier rite?
                        changing the wave form and making ac to dc?
                        Yes, the rectifier unit on the bike does that.
                        Your biking tells a lot about the person you are!

                        Comment

                        • #1077
                          Originally posted by sharshas View Post
                          Whenever I keep my bike in the rain for about half an hour, the tacho meter doesnt work, rest all thing in digital console works fine. I had this same problem in my Fiero F2 ; that after bike getting drenched in rain the tacho meter alone doesnt work for a day. But in GS the case is only for 6-7 Kms there after it starts working.

                          Anybody till now faced this issue?

                          I too drove my GS in heavy rain for about 10 minutes... It was drenched completely... I was worried about the digi speedo but nothing happened

                          Comment

                          • #1078
                            Originally posted by abhijeet080808 View Post
                            Voltage both in case of AC as well as DC generator increases with speed.
                            OH... will check again then how do voltage is regulated in bikes with different speed

                            Comment

                            • #1079
                              Originally posted by ssivakumar.r View Post
                              OH... will check again then how do voltage is regulated in bikes with different speed
                              What our bike's regulator does is something very crude. The regulator simply short circuits the coil output to ground whenever it goes above a certain voltage level (around 13.8V). That is why the regulator and rectifier unit gets very hot. And lot of energy is wasted too - more so at higher rpm. As only a certain amount of heat can be dissipated, so this technology is used in case of low powered alternators only.

                              But foreign bikes do not do that. They uses an electromagnet coil instead of the permanent magnet to generate the magnetic field. So, they control the output by varying the electromagnet coil current. So no power is wasted. The coil generates exactly what is needed. Same thing happens in case of car alternators too. Maybe someday our el-cheapo bike manufacturers will upgrade to this tech.
                              Your biking tells a lot about the person you are!

                              Comment

                              • #1080
                                Originally posted by abhijeet080808 View Post
                                What our bike's regulator does is something very crude. The regulator simply short circuits the coil output to ground whenever it goes above a certain voltage level (around 13.8V). That is why the regulator and rectifier unit gets very hot. And lot of energy is wasted too - more so at higher rpm. As only a certain amount of heat can be dissipated, so this technology is used in case of low powered alternators only.

                                But foreign bikes do not do that. They uses an electromagnet coil instead of the permanent magnet to generate the magnetic field. So, they control the output by varying the electromagnet coil current. So no power is wasted. The coil generates exactly what is needed. Same thing happens in case of car alternators too. Maybe someday our el-cheapo bike manufacturers will upgrade to this tech.
                                instead of that if they disconnect the alternator... this will be better

                                thats too much... alternator will burn if the terminals are short circuited

                                BTW GS has a small heat sink for rectifiers... i noticed that and its always cool

                                Thank you buddy...

                                Comment

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