-16-
Project #328
OBJECTIVE: To learn the principle of an SCR.
In this circuit, the 6-volt bulb (L2) will not light until the SCR (Q3) is
triggered. Turn on the switch (S1) and the bulb will not light. Now
press the switch (S2) to light the bulb. The bulb will stay lit until the
slide switch is turned off. To protect the SCR, a current limiting 1kΩ
resistor (R2) is placed in series with the gate.
SCR 6V Bulb
Project #327
OBJECTIVE: To change the direction of current flow using a
motor.
A motor generates a current when it rotates. The rotation of the motor
determines the direction current flows. Quickly spin the motor (M1)
clockwise with your hand; the meter (M2) deflects to the right. Now
spin the motor counterclockwise, and the meter deflects to the left.
Meter Deflect
by Motor
To Next Page
Loading...
