Explanation of circuit
30
amplification time section IC1(7pin) is in “H” level, the transistors
TR3
and
TR6
turn on and the electric current flows into the right motor (
MR
) to make it spin. The
TR4, TR7
and
TR9
turn on and the electric current flows into the left motor (ML) to make it
spin. Tribotz will now move forward.
4. Filter section
When the motor spins, the electric noise (change of power supply voltage) will naturally be
generated. Since the noise may affect the sensor and the amplification timer section, leading to
the malfunction, a filter which consists of
R1, C2 and C1
is included to restrict the noise.
5. Power supply section
The 9V battery provides energy to operate the flicker circuit section,
avoidance sensor
section
,
amplification timer section
and
mode condition display
section. The 2 pieces of the
“AA” batteries (1.5V x 2 = 3V) provide energy to
operate the amplification
and
driving
motor section
and
provide power to
spin the motors.
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