Page 126 - World Cup Soccer

Basic HTML Version

High Power Solenoid Circuit
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - I
: POWER DRIVER BOARD
I
I
Drive
+50V
J130
I
Playfleld
I
or
I
Backbox Coli
I
Violet-xxx
J107
I
I
Violet-Yellow
100111
50V
Power
I1
I
The microprocessor toggles the output of the 74LS374. When point "A" drops low, point "S" the collector of the 2N5401
transistor is high. A high at point "S" causes point "C" the collector of the TIP102 transistor, and point "0" the emitter of
the TIP36 transistor to drop low. When point "0" is low the coil is grounded through the transistor and the coil turns On.
The coil shuts Off when point "A" toggles high.
Low Power Solenoid Circuit
: POWER DRIVER BOARD
Drive
Playfleld
or
Backbox Coli
Brown-xxx
Violet-Orange
100111
50V
Power
The microprocessor toggles the output of the 74LS374. When point "A" is low, point "S" the collector of the 2N5401
transistor is driven high. A high at point "S" turns On the TIP102 transistor and causes point ·C" to drop low. When
point "C" is low the coil is grounded through the transistor and the coil turns On. The coil shuts Off when point "A"
toggles high.
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