|Radio Control Transmitter Series|
At the start chopping, all the output of IC 14 024 enumerators in kedaan '0 ', after chopping 8 Q4 output pulse (pin 6) will be a '1', after counting 16 pulses output Q5 (pin 5) to '1 ', after chopping 32 Q6 output pulse (pin 4) to '1 ', after counting 64 pulses output Q7 (pin 3) to '1'.
Output over-output voltage used to control foot 9 U2C through diode D1 and D2, during one of the output is still worth '0 'then the clock generator U2B still working, this will continue until the cathode D1 D2 dankatode be '1' so that the foot 9 U2C be a '1 'as well. This situation will result in the output feet 3 U2A to '1 ', which stop the clock generator U2B and resets the enumerator 14 024 danberhenti already shipping 27 145 MHz pulse frequency.
To generate the lag time for receiver circuit has enough time carrying out orders, used a series of Q2 9014, resistor R7 and capacitor C10. The amount of delay time is determined by the value of R7 and C10. Switch to send command forward / backward and to send commands left / right are two separate switches. Each switch has 3 positions, the center position means that the scalar does not send commands.
Transistor Q2 follows perlangkapannya forming circuit to convert the radio frequency pulses received from the transmitter into the box pulses that can be accepted as a digital signal by the CMOS IC. Digital signal will be received as the clock had to be chopped by chopper 14 024 IC (U2). Output 14 024 will be in accordance with the number of pulses sent by the transmitter, forward command and left (which is used as an example in the discussion of the transmitter) is the pulse number of 24, the results of counting these pulses cause the output to be 14 024 Q4 = '1 ', Q5 = '1', Q6 = '0 'and Q7 = '0'.
Digital signal received in addition be used as a clock IC 14 024 enumerators U2 discussed above, used also to drive the 3 pieces of the time delay circuit to generate pulses which controls the circuit work.
Toll regulator will first appear after delivery frequency pulse stopped because the lag time between sending the code, this pulse serves to record the count results to the U3 14 024 14 042 (D Flip Flop), making the final conditions of 14 024 will be retained to control the motor. After the results were recorded to 14 024 14 042, 14 042 enumerator is reset by the second pulse, after the lag time for 14,042 enumerators can count start from 0 again.
The circuit formed by transistors Q3, Q4, Q7, Q8, Q9 and Q10 named as H Bridge circuit, this circuit is very reliable to drive DC motors. With this series of DC motor can be rotated to the right-to-left or stop motion. The main requirement of the use of this circuit is the base voltage of Q7 and Q10 base voltage must be opposed, for example base Q7 = '1 'and the base of Q10 = '0' the motor rotates to the left, the base of Q7 = '0 'and the base of Q10 = '1' the motor will spin to the right, the base Q7 = '0 'and the base Q10 = '0' motor stop motion, but it should not happen, the base Q7 = '1 'and the base of Q10 = '1'.
Similarly, Q5, Q6, Q11, Q12, Q13 and Q14 form a H Bridge. H Bridge to the left in Figure 2 is used to control motors that adjust the cars moving left / right, while the H Bridge right part is used to control motors that regulate movement forward / backward cars. The relationship between outpur enumerator 14 042 and 14 024 Input D Flip Flop is structured so that the signal is fed to each H Bridge can not be all '1 'simultaneously.
Wire to the transformer can wear a wire in the unloading of these Koker, carefully open coil of wire that already exist within the Koker because the wire is smooth and quite easy to break.
Step 1: Roll away from the feet of wire fed into the number 5 ft 4 in the direction h (CW) as much as 3 rolls right in level 1 (point level above the lowest point)
Step 2: Wind the wire from leg 1 to leg 2 in a clockwise direction as much as 4 rolls right on level 2.
Step 3: Continue the roll (from step 2) clockwise a quarter roll to as much as 3 feet 3 at level three. (Can be determined exactly a quarter of the roll, because kokernya have a path cut into 4).
Making coil L1
Making coil L2