Regulator/Rectifier; Triple Phase Output Type; Type Of Regulator/Rectifier - Honda Motorcycle Service Manual

BATTERIESICHARGINGILlGHTlNG SYSTEM
Triple Phase Output Type
I
I
I TRIPLE PHASE AC WAVE
the aiernator is three single phase AC wave forms where
1 I I 1
This type consists of three coils connected to each other, pro-
ducing three single phase alternating currents. The output of
each is 120' out of phase with the others.
The symbol for this alternator has only three coils as in the
diagram. The actual stator coil consists of several coils con-
nected in series.
The triple phase output type is used in engines of medium to
large displacement with large electrical loads. Depending on
how the coils are connected, there are t w o symbols for this
TRIPLE PHASE ALTERNATOR
type. Servicing is the same for both types.
Some triple phase output types use an electromagnetically
induced type alternator. The excited field coil type alternator
feeds current to the field coil to magnetize the rotor which
then acts like a permanent magnet. The symbol for this type
has a field coil along with the charging coil.
SYMBOL
The regulatorlrectifier uses semiconductors such as
thyristors which radiate heat in operation. For this reason,
these components use printed circuit boards which are
resined onto an aluminum case. The case has several fins for
better heat dissipation.
As the engine revolutions increase, the output voltage of the
alternator also increases. The function of the regulatorlrec-
tifier is to keep this AC output voltage within a certain range
and to convert the AC output voltage to DC voltage - for
powering various components and charging the battery.
Type o f Regulator/Rectifiers
A regulatorlrectifier may be classified as one of several types,
based on the method of regulation and rectification. The chart
below shows the different types of regulatorlrectifier~.
Since the input wave form is the same as the output wave
form of the alternator, refer to the alternator section for the
types of input wave form.
22-16
Date of Issue: M a r c h 3 9 9 5
0
HONDA MOTOR CO.,LTD.
Regulation method
SCR shorted
Voltage feedback method
Internal voltage feedback
Battery voltage feedback
input AC w a v e form
Single phase
Triple phase
Rectification method
Half-wave rectification
Full wave rectification