Basic HTML Version
High Power Solenoid ClrcuH
DRIVE
POWER
The microprocessor toggles the oulpot of the 74LS374. When point 'A
I
drops low, point 'B' the collector of the 2N5401
transistor is high. A high at point 'B' 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 ClrcuH
DRIVE
POWER
The microprocessor toggles the oulpot of the 74LS374. When point 'A' is low, point 'B' the collector of the 2N5401
transistor is driven high. A high at point 'B' tums 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.
Special (General Purpose) Solenoid ClrcuH
DRIVE
POWER
To
T_"""'or
Soocndory
• 'PloytItId C~CUt Whon!Md
for
0011
ltIVor (hI)'
(01110, <60V
a
+20V).
W•••
d
for _ ••
p
_ IN
ploytItId c:i••• " btl"".
11_
Dlodolanoh ••• d for •
..,..,p
"'CUt.
The microprocessor toggles the output of the 74LS374. When point 'A' drops low, point 'B' is high. A high at point
'B' causes a low at point 'C'. When point 'C' is low the coillflashlamp is grounded through the transistor and the
coiVflashlamp tums On. When point 'A' toggles high the coillflashlamp tums Off.
The ADDAMS FAMILY 3-7