Basic HTML Version
High Power Solenoid Circuit
DRIVE
POWER
Jl13
The microprocessor toggles the output of the 7415374. When point "A"drops low, point "B" the
collector of the 2N540 1 transistor is high. A high at point "B" causes point "C" the collector of
the TIP102 transistor, and point "D" the emitter of the TIP36 transistor to drop low. When
point "D" is low the coil is grounded through the TIP36 transistor and turns On. The coil shuts
Off when point
MA"
toggles high.
Low Power Solenoid Circuit
DRIVE
POWER
The microprocessor toggles the output of the 74LS374. When point "A" is low, point "B" the
collector of the 2N540 1 transistor is driver high.
A high at point "B" turns On the TIP102
transistor and causes point "C" to drop low. When point "C" is low the coil is grounded through
the TIP102 transistor and turns On. The coil shuts Offwhen point "A"toggles high.
Hurricane 3-7