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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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<blockquote data-quote="timetraveller" data-source="post: 108361" data-attributes="member: 456"><p>I'm out of my depth here, but then, when did that ever stop me having an opinion? My understanding is that 'shunt type regulators' are Zener diode systems, similar to those produced to go with the early Lucas alternators fitted to UK bikes in the 60s. I looked at the pictures of the regulators and all of them seem to have heat sinks which makes me suspicious. If so then these work by turning surplus charge into heat. You are thus taking all the possible power that the alternator can generate and turning some of it to heat, It is entirely possible that there is some electronic wizardry involved these days but if not then this is about as primitive a method of regulating a voltage as is possible. More sophisticated regulators work by modifying the current to the field coils and thus the alternator never generates more power than the bike needs. This latter system takes less power from the engine and drive system but is more expensive to make.</p><p>Is there someone out there who is competent in these matters who can give us a definitive explanation of what is going on here?</p></blockquote><p></p>
[QUOTE="timetraveller, post: 108361, member: 456"] I'm out of my depth here, but then, when did that ever stop me having an opinion? My understanding is that 'shunt type regulators' are Zener diode systems, similar to those produced to go with the early Lucas alternators fitted to UK bikes in the 60s. I looked at the pictures of the regulators and all of them seem to have heat sinks which makes me suspicious. If so then these work by turning surplus charge into heat. You are thus taking all the possible power that the alternator can generate and turning some of it to heat, It is entirely possible that there is some electronic wizardry involved these days but if not then this is about as primitive a method of regulating a voltage as is possible. More sophisticated regulators work by modifying the current to the field coils and thus the alternator never generates more power than the bike needs. This latter system takes less power from the engine and drive system but is more expensive to make. Is there someone out there who is competent in these matters who can give us a definitive explanation of what is going on here? [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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