Multiple Receiver for one motor method in LEGO PF system

Multiple receiver output are connected to one point and fed to a motor.
The benefits are 1) more power 2) enhanced signal acceptance
Two sample vehicles are presented.(4WD MOC and 8043 mod)

Category:

Science & Technology

Tags:

• LEGO
• Technic
• multiple
• receiver
• PF
• power
• function

[jcbarros71]

Since the LB1836 that's responsible on 8884 for running the motors has a 1A current limit, and a XL motor may draw instantly more than that at start-up, giving the motor 2 channels, each from 2 receivers, is allowing it to draw a maximum current of 2A.

Then, when the motor is running normally, lets say if it draws 200mA...600mA... there's no difference if its power is provided trough 1 or 2 receivers, because only one was perfectly capable of keep him running at that speed.

[sunmint1]

@jcbarros71

I agree 100 percent.

This method is useful when it requires high torque and power such as starting a vehicle or climbing uphill.

Additional benefit is that we can distribute the receivers in order to get wider receiving angle(reducing blind spots). An example is seen in my 8043 MOD.

[DurianObried]

Hi Sunmint1,

This modification is really very interesting, in more you did not sacrifice the design, it is really beautiful and playable!

Bravo!

I also looked at your video of your experiment with several receiver for an engine, I like very much and I shall try to reproduce this in the future.

Congratulations!

[sunmint1]

@DurianObried

Hi Durian,

I am happy to hear that you liked this. : )

And, I hope you will make something nice with this method.

One of my plan is "a racer that can drift continuously"

My Snow White Machine could do just "drift parking".

It cannot do real "power drift" . Since last year, "continuous drift" became one of my targets in LEGO creation. But I don't know when I will finish that target.

Thank you for your praise, also : )

[DrywFiltiarn]

I can't recommend using the reversed polarity you show, especially with the LIPO battery you use. You create a power short in the circuit. LIPO batteries are very sensitive to this and you might up with a broken battery!

Further it's a very interesting experiment.

[sunmint1]

@DrywFiltiarn

Thank you for your concern and praise. : )

I agree that it is a short circuit. But, it is not directly connected to the battery.

The outputs came out of the receiver who has "current limitation" feature for safety. I felt some confidence in the electric designers and dared to experiment the reversed polarity experiment.

[jhsevs]

@LEGO93789 He has more receivers than shown in this video, I think. No offense :P

[LEGO93789]

You don't love your power functions :(

[sunmint1]

@MiklosRabi

Thanks.

I like to see your works from time to time. : )

[MiklosRabi]

Very clever! 1st view. :o))