Suzuki RG250 Service Manual page 103

ELECTRICAL SYSTE M 6-2
When the engine
r/m!n
becomes higher, the generated voltage of AC generator also becomes higher and the
voltage between points
®
and @ of regulator becomes high accordingly. and when it reaches the adjusted
vo ltage of regulator, ZD (Zener diode) becomes " ON " condition and, signa l
will be sent to the SeA
(Thyristor) gate probe and SeR wil l become " ON" condition.
Then the SeA becomes conductive to the direction from point
©
to point @. Namely at the state of this,
the current generated from the AC generator gets through SeR without charging the battery and returns to
AC generator again. At the end of this state, since the AC current generated from AC generator flows into
the point @ . reverse current tends to flow to SCR , then the circuit of SC R turns to OF F mode and begins
to charge the battery again. Thus these repetitions maintain charging voltage to the battery cQnstant and
protect it from overcharging.
AC Generator
r-------,
,-
'--"" yC-y
,yc::::l
y
,
O"::=- ----i:
Y
C3J
Y ,
L _________
J
Regulator/ Rectifier
~---------------------,
i£:
@; ,
IG . Sw itc h Lighting Switch
,-
:l
: R-
r
,
f+\
,
1 ' + 1 1 ' + 1
I
~
J
to-
.J
-
-
@
~ - ----- - -
- -
---- -----
---~
•
. .
-,;-
;
, ,
~
"
:;;
,
_ _ <D
.1.
-
>
~ •
. ~
:E
oS
"
1/
•
0
~
0
~