Are Tommey Reed´s pulse motor circuits overunity ?

[Groundloop]

Stefan,

He has a big capacitor bank in parallel with the batteries. He also have a big capacitor bank
at the output of his coil switch.

Quote: "it seems you have missed the principle behind it."

No I have not.

Attached is a drawing of TR's circuit. The power input is from his battery bank. The single
input capacitor in the drawing represent the input capacitor bank. The single mosfet represent his four paralleled mosfet transistors. The single output capacitor in the drawing represent the output capacitor bank. This drawing was displayed in one of his YouTube videos. Are you saying that this drawing is not correct?

Groundloop.

[powercat]

51

Pulse Generator, basic understanding of EMF
http://www.youtube.com/watch?v=qaij2Xe6Sm0&feature=channel_page

cat

[powercat]

52

Pulse Generator, the basic load test
http://www.youtube.com/watch?v=y09nRSQnpfg&feature=channel_page

cat

[wattsup]

@Groundloop

If that is his Pulse Generator circuit, it does not seem to be correct because the transformer had two coils and a wire going through it.

**************

I am really confused because some are talking about his motor/generator tests while others are talking about his Pulse Generator. Kind of hard to follow. lol

Regarding the motor/generator, if the drive motor is commutator/brush type and DC then he cannot capture BEMF as I had explained before, otherwise it is very simple to see this on a scope shot. Same goes for the generator. lol

Now if they were AC motors with slip rings, then OK. I have blown a 1200 watt DC to AC inverter once when the AC plugged motor was inadvertently unplugged while the motor was running. BANG. What a noise.

I have also blown once a 100 amp shut off switch by running a 250vdc 20amp DC motor. We applied voltage but forgot to also apply the excitation voltage. The motor stuck and as we switched it off, BANG, the switch blew up and almost tore off a friends hand.

BEMF is serious shit, but you won't get it without a third brush on the commutator and no motor makers produce this stock off the shelf.

Blowing mosfets. No big deal. I have made a sport of it. Just drive them too hard and whammo, they will fry.

I think @TR has something but I am confused as to what to make of it at this stage.

[chrisC]

@Groundloop

If that is his Pulse Generator circuit, it does not seem to be correct because the transformer had two coils and a wire going through it.

**************

I am really confused because some are talking about his motor/generator tests while others are talking about his Pulse Generator. Kind of hard to follow. lol

Regarding the motor/generator, if the drive motor is commutator/brush type and DC then he cannot capture BEMF as I had explained before, otherwise it is very simple to see this on a scope shot. Same goes for the generator. lol

Now if they were AC motors with slip rings, then OK. I have blown a 1200 watt DC to AC inverter once when the AC plugged motor was inadvertently unplugged while the motor was running. BANG. What a noise.

I have also blown once a 100 amp shut off switch by running a 250vdc 20amp DC motor. We applied voltage but forgot to also apply the excitation voltage. The motor stuck and as we switched it off, BANG, the switch blew up and almost tore off a friends hand.

BEMF is serious shit, but you won't get it without a third brush on the commutator and no motor makers produce this stock off the shelf.

Blowing mosfets. No big deal. I have made a sport of it. Just drive them too hard and whammo, they will fry.

I think @TR has something but I am confused as to what to make of it at this stage.

@Wattsup
You're confusing yourself. Forget about the motor. Just concentrate on the 4 diodes, single coil (he's just using the transformer with ONE primary coil. the secondary i OPEN and NOT used) and he's catching the back emf when the PWM pulses the coil. His last 3 videos show exactly what is happening.

cheers
chrisC