Author Topic: Reg/rectifier question (Read 24504 times)

crazypj · « **Reply #75 on:** May 18, 2012, 11:26:19 PM »

TT, You know diodes don't turn on and off, they pass current one direction only.
I think you may have meant transistors or Mosfets?
It's too damn late to be thinking

TwoTired · « **Reply #76 on:** May 19, 2012, 01:21:24 AM »

Quote from: crazypj on May 18, 2012, 11:26:19 PM

TT, You know diodes don't turn on and off, they pass current one direction only.

Diodes only conduct when they are forward biased. Feed them an AC input, with both positive and negative voltage swings, and they turn on and off at the cycle rate, enabling or blocking conduction, depending on the polarity of the voltage applied to them. And, they don't do it at the Zero crossings, but at the forward bias voltage points. The switching points are either plus or minus .7V away from the zero crossing point for standard silicon devices. To recover/convert the full sine wave on a single phase, you need two diodes for each phase, one is forward biased on the positive wave and the other is forward biased on the negative portion of the sine wave, so that most of the sine wave time period results in conduction at the output.

So, I have to disagree with you on this point. If you provide a silicon diode with a 0.5V Pk to Pk AC sine wave, it won't turn on and pass any current, apart from the very small leakage that may occur, as nothing is perfect.

Cheers,

Spanner 1 · « **Reply #77 on:** May 19, 2012, 09:18:39 AM »

The alternator is along for the ride RT when the battery is charged ya got it backwards

When the battery is at/close to charged the atl. is switched to about 1/2 power or even OFF.....

dawdish · « **Reply #78 on:** May 19, 2012, 10:54:46 AM »

Ok guys, do the adult thing, say you are sorry for being so stubborn and fess up like men and admit you learned something new the week

. Just because someone tells you the bike runs partially off the battery at low rpm doesn't mean the battery will not be in the "going along for the ride" while the alternator supplies operational energy at the normal operating riding rpms. If you are going to swing off someone's nuts, do it properly.

rt
[/quote]

Well RT I guess you told me...and I walked 10 blocks home for no reason....Get a grip....

Spanner 1 · « **Reply #79 on:** May 19, 2012, 09:30:48 PM »

Rototiller, you lack a basic understanding of how the charging system on our SOHC4 bikes work. It would serve you well, if you care, to know what your talking about before you post derogatory remarks about other posters here......... a common enough tactic from the ill-informed

dave500 · « **Reply #80 on:** May 19, 2012, 09:37:54 PM »

dont remove the battery from a running alternator with an electronic regulator.

scottly · « **Reply #81 on:** May 19, 2012, 09:42:51 PM »

Quote from: rotortiller on May 18, 2012, 05:15:47 AM

Now that is cleared up you should better understand how the system works Vibrating mechanical or proper solid state reg it still adds up the same

When the battery is partially depleted the functioning alternator will supply energy in the form of electrical current any time the excess is available (not drawn by the lights and ignition system). Alternator shares its output between the battery, the lights and ignition system. Once the battery is fully charged the alternator exclusively supplies the ignition, the lights and topping charge to the battery provided it is at about 14 volts and above. When your headlight gets brighter from a raised rpm it is because the electrical system is running off of or suplemented with alternator power, alternator power that is above loaded down terminal battery voltage. We can have load sharing between alternator and battery under certain conditions at low rpm.

It’s very simple to prove, install an amp meter and watch the flow of current into the battery at roughly 14 volts with the lights on at 3-4 grand (min riding rpm for quiet people). DC doesn’t flow in both directions at the same time regarding the battery. If the battery is accepting a charge (current flowing into it) the remaining electrical system is powered by the alternator. If the battery is full and the system voltage created by the alternator is above battery terminal voltage (minimal topping charge being fed to the battery) the system is running off the alternator. Again DC doesn’t flow in both directions at the same time regarding the battery

The only time the system will be exclusively powered by the battery is with the engine stopped or when it's broken. It is how the load is shared between the battery, the battery state of charge with the alternator at low rpm that is marginal, once riding and charged the battery simply goes along for the ride at roughly 14 volts.

A very good explanation of how the charging system works with with the battery.

Spanner 1 · « **Reply #82 on:** May 19, 2012, 10:01:20 PM »

Good description of something which is not the charging system on our SOHC4 bikes...... Especially the part where he says that the battery when fully charged is 'only along for the ride' as the bike is then entirely running off the output of the alternator... entirely WRONG

.... the 'fully charged battery ' SHUTS-OFF the alternator ( or if below full charge cuts it's output to 1/2 )... the bike never, thats 'NEVER' runs off the alternator as the state of battery charge DICTATES the output of the alternator.... .... learn the facts of the design.

scottly · « **Reply #83 on:** May 19, 2012, 10:33:16 PM »

Ray, I have run tiny batteries since 1996. The only time I got stranded was because I ran out of gas>

Spanner 1 · « **Reply #84 on:** May 19, 2012, 10:47:48 PM »

Learn how the charging works, Scott before +1' ing someone else's post.... disappointing, I must say, as it does NOT work as described.....

scottly · « **Reply #85 on:** May 19, 2012, 10:53:30 PM »

Quote from: Spanner 1 on May 19, 2012, 10:47:48 PM

Learn how the charging works, Scott before +1' ing someone else's post.... disappointing, I must say, as it does NOT work as described.....

YES IT DOES!!!

Spanner 1 · « **Reply #86 on:** May 19, 2012, 10:59:26 PM »

Explain... one paragraph, please ....

scottly · « **Reply #87 on:** May 19, 2012, 11:05:15 PM »

Quote from: scottly on May 19, 2012, 09:42:51 PM

Quote from: rotortiller on May 18, 2012, 05:15:47 AM
Now that is cleared up you should better understand how the system works Vibrating mechanical or proper solid state reg it still adds up the same

When the battery is partially depleted the functioning alternator will supply energy in the form of electrical current any time the excess is available (not drawn by the lights and ignition system). Alternator shares its output between the battery, the lights and ignition system. Once the battery is fully charged the alternator exclusively supplies the ignition, the lights and topping charge to the battery provided it is at about 14 volts and above.

Spanner 1 · « **Reply #88 on:** May 19, 2012, 11:12:52 PM »

Yep. There's your mistake, @ 14v or 14.5v ( you call it ! ) the ALTERNATOR is taken out of circuit, not the BATTERY. The battery always powers the bike, supplemented by the alt. until the battery voltage says ' alt' OFF or reduced to 1/2 power..... get used to it

The alternator ONLY works if the battery sends voltage to the field coil.. geez LEARN ( disappointed again).

Spanner 1 · « **Reply #89 on:** May 19, 2012, 11:38:32 PM »

Bump... read if you want.

dave500 · « **Reply #90 on:** May 19, 2012, 11:41:16 PM »

if the alternator only charges if the battery sends voltage to the field coil what happens when the battery is taken out of circuit with the engine running? please explain.

dave500 · « **Reply #91 on:** May 19, 2012, 11:52:47 PM »

you only get five minutes to google.

Spanner 1 · « **Reply #92 on:** May 19, 2012, 11:53:18 PM »

Dave.. yer late, already covered... bike dies... some idiots will try to say bike will be rideable... whatever.

dave500 · « **Reply #93 on:** May 19, 2012, 11:55:15 PM »

how come i can remove the battery from circuit in my car and it still runs?

dave500 · « **Reply #94 on:** May 19, 2012, 11:56:42 PM »

google time starts now.

Spanner 1 · « **Reply #95 on:** May 19, 2012, 11:58:58 PM »

Responded within 1 minute... ( just 'cos I saw it quick ! ).... lighten-up y'all... learn how the charging system works on our bikes... stop posting bull#$%* ' how you think it works ' answers... doesn't help anyone !

dave500 · « **Reply #96 on:** May 20, 2012, 12:06:37 AM »

i knew you would avoid giving a direct answer,and i agree to lighten up,the auto type alternator has a similar but different field/reg set up,with the battery removed from your car when running it can generate too high a voltage and burn out internally,the honda set up isnt as powerfull so is less likely to self destruct.

Spanner 1 · « **Reply #97 on:** May 20, 2012, 12:08:07 AM »

Read, learn, read , learn.... then stop posting bull#$%* answers to 'how the SOHC4 charging system works'.... or just #$%* around with the topic 'cos you dont care and have no interest.... ( obvious ).

dave500 · « **Reply #98 on:** May 20, 2012, 12:15:38 AM »

hey i just agreed to lighten up?oh im interested in electricity,without it there would be no tv,or ignition.

Spanner 1 · « **Reply #99 on:** May 20, 2012, 12:17:41 AM »

Direct answer Dave ?..... completely different system of charging... spin the car alternator = volts.
Enough... you have a CB500 for years and have thousands of 'advise' postings on this Forum and you don't know ( care ) how your battery/charging system works ?? WTF. I can't even believe that.

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Author Topic: Reg/rectifier question (Read 24504 times)