Transistor balanced wheel clock driving circuit

AlbertHall

Joined Jun 4, 2014
12,347
The timing of the pulse is meant to decide by the circuit , correct ?
The circuit must time the pulse to the movement of the wheel to continue its motion but the overall timing is set by the rotational momentum of the wheel and the strength of the spring which centers the wheel as in mechanical clocks and watches which use a balance wheel.
 

Thread Starter

ranatungawk

Joined Oct 30, 2008
198
In one case the approach of the magnet towards the coil triggers the circuit and the magnet is attracted towards the coil. Then the coil current must be switched off quickly when the magnet is centred on the coil otherwise the coil will be opposing the magnet motion as it tries to move away from the coil.

In the other case the circuit is triggered quickly just after the magnet is centred on the coil and the coil repels the magnet to propel it on its way. Later the coil current is switched off but exactly when is less important.

In the first case the switch off should be fast but in the second case the switch on should be fast.

Hi AlbertHall;

after you said, i checked the above. before the battery is inserted, the coli and the magnets are in one line (aline) as the pic below. As the battery is inserted (with the 1st kick) coil repels the magnet away. So what would be your choice ?


1653927023256.png
 
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