Regulator-Rectifier Module, Part II.
For all those lovers, expert, master, pilot and lover of the fascinating world of motorcycles, there is an undeniable fact, tangible and solid that it is one that increasingly marked the technological evolution that every year we see modern motorcycles, if you look carefully, we realize that the electrical system is not excluded or is an exception to these trends trendy.
We note in an obvious way as a motorcycle comes standard today, a number of electric-electronic components are becoming more complex, demanding, sensitive and demanding of a reliable electricity supply that is stable with high quality and it is right here comes into play that tiny gray box, black is sometimes alloyed and when failure can be a headache for many owners and mechanics.
As the generator of the type alternator, the alternator more efficient than either single or three phase, is the preferred choice of most engineers in the factories, because to design and build nature, an alternator produces AC current rate, ie the same alternating (this can be measured and is called the frequency and its unit of measurement is the hertz Hz) between the source and the device consumption also reverses polarity also a number of times proportional to engine speed, making it inconsistent to unthinkable to recharge a battery or accumulator, as they are designed for direct DC current rate, where the polarity is always the same.
How does the rectifier?.
For this reason, the first thing to do is pass the current type AC (alternating current) to DC-(direct) so it can be utilized to recharge the battery and used by other electric-electronic components of the motorcycle, this operation is called "rectification" and is performed by a semi-conductor, a little bug called a "diode", the same is done primarily or Silicon Germanium (elements of the periodic table), this little friend, has the property when it is polarized current passes in one direction (from anode to cathode), but not reverse, achieving cancellation of the change in position of a sine wave, and I will not get more in depth topics of physics, diodes are placed or grouped in a peculiar way, especially to rectify the current which is usually called a bridge rectifier or diode plate here in Venezuela, we say diodera.
Okay, we rectified current but not yet ready, ready to be used by the motorcycle's electrical system and this is because they have to regulate it, because the current induced voltage is directly proportional to the variation magnetic flux in unit time, very briefly this means that at higher engine revs, the more power voltage will be induced and if nothing is done to regulate these excesses to a safe level immediately get their harmful effects, burning all that is achieved in its path, remember that a typical motorcycle alternator has a voltage around 50 V AC or even more.
How does a regulator?.
There are two ways to regulate the excess of tension, an alternator is designed to produce more power on moderate regimes in the high revs and dissipate through a thyristor SCR shorted to ground excess (the only bad thing shorted to ground overvoltage is that performance is affected tumultuously), the other way is, using magnet alternators, you can regulate or manage the excitation of the same according to load requirements, making optimum performance at all times appropriate to the needs of consumption, these are the most appropriate when these needs are high and when there are rate changes very frequently, this type of regulation can be found in high-powered motorcycles, with complex electrical systems such as the Honda Goldwing 1800, the CBR 1100 XX Blackbird or CB1000 Honda simpler.
For now we leave this interesting subject here, I hope the pleasure and utility of all Uds.en the next installment I'll talk about the different types of regulators.
Here I placed some photos of the various regulators, rectifiers modules used by some motorcycles.
Regulator-rectifier
connector included.
Sample the wide variety of these modules, there are wired and without them, large and small.
Another example of these modules, cables and this brings to work with the adjustable magnet field, as a typical alternator.
Reverso previous module showing clear resin protects the internal components, if retailers can see some small cracks in the resin, an unmistakable sign that this module step a better life.
Another specimen seen from the rear, shows the resin we protect the unit, I also suspect it is to keep secret as it is produced and avoid copying.
oldest bikes in the coming controller module of the rectifier, for example, the Honda GoldWing GL1000 1975 -1978 CB750Four or Honda, I have some samples of it. Rectifier
a Honda CB750 Four 1971.
Another angle where you can see the inside of this rectifier old.
This specimen is the regulator module CB750Four a Honda 1971.
Being a little curious, opened the former controller, to see that it is simply a relay, when it induced a lot of electricity was opened by removing the excess dough.
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