NPN
type
Transistor
Low Power
Electronic Switch to enable current to flow through the output(s) .
Electronic Switch to enable current to flow through the output(s) .
Circuit
Diagram
Darlington
Pair
Sensitive
Electronic Switch to enable higher currents to flow through the output(s).
Electronic Switch to enable higher currents to flow through the output(s).
Circuit
Diagram
.
Thyristor
(SCR)
An Electronic
Latch will remain switched on so current can continue to flow through the output(s) until it is reset.
Circuit
Diagram
.
PIC
Programmable
Microcontroller
(Powered by 9 volt d.c.)
Circuit Diagram
.
Darlington
Pair +
Capacitor /
Resistor
Delaying the switching on of an output
Circuit
Diagram
.
Transistor
+ Capacitor
Temporary
Latch
holding an output on
for a short time
holding an output on
for a short time
Circuit
Diagram
.
Darlington
Pair +
Capacitor
Temporary
Latch
holding an output on
for a chosen time
holding an output on
for a chosen time
Circuit
Diagram
