ENERGY AMPLIFICATION

[synchro1]

"Don Smiths Quote - wil not happen if you onliy step up voltage in first Tesla coil and transform it in power in the second - receiving Tesla coil. There has to be additional arrangement that sucks additional power in the system".

This additional arrangement is power sucked into the system up through an Earth ground. Tesla's patents show lines emenating from an ariel antenna, but there are no directional arrows. This antenna is really a "Sky Ground", not a receiver!

[Qwert]

"Don Smiths Quote - wil not happen if you onliy step up voltage in first Tesla coil and transform it in power in the second - receiving Tesla coil. There has to be additional arrangement that sucks additional power in the system".

This additional arrangement is power sucked into the system up through an Earth ground. Tesla's patents show lines emenating from an ariel antenna, but there are no directional arrows. This antenna is really a "Sky Ground", not a receiver!

What about this:

>>  Stepped-up high voltage from not so high turns ratio.

An experimenter is interested in determining the approximate turns ratio of an automobile ignition coil. He impresses a small audio frequency sinewave on the primary terminals and uses an oscilloscope to measure the induced voltage in the secondary. As a result of this measurement technique, it is found that the voltage step-up is approximately 100. This does not appear reasonable because 100 times the 12 V of the automobile battery falls far short of the 15 000-30 000 V needed for firing spark plugs. What is the nature of the discrepancy? Although not commonly referred to as a 'flyback' transformer, the ignition coil develops its high secondary voltage in a similar manner to the flyback transformer in a television set. In both instances, the primary winding requires a waveform with a very high rate of voltage or current change. Such a waveform induces a high voltage counter EMF in the primary and it is this induced voltage which is stepped-up further in the secondary. Thus in an automobile ignition system, the abrupt cut-off of the applied 12 V induces a counter EMF in the primary with a peak amplitude of about 250-300 V. When this purposely-produced 'transient' is multiplied by a 100 to 1 step-up turns ratio, one obtains the 25 kV or so needed for reliable firing of the plugs. << - from Practical Transformer Handbook.

[synchro1]

Here's a video from Imtotob: He has grid neutral and ground connected to the 12 volt leads of a 12 to 120 volt Radio Shack transformer lighting a 120 volt bulb off 70 millivolts between the grounds! The bulb is apparently pulsing the transformer. Wow!



http://www.youtube.com/watch?v=Lwm0r0bk8dM

[forest]

Qwert


All would be fine but then IF flyback voltage is stepped up to kV why I see a 100- 400V spike on primary ? Or better yet , why in car coil driver or in ordinary  DC to AC inverter mosfet has to be protected by diode (either internally of external) to avoid damage ? Something is fishy because if energy is transfered to secondary why we have problems on primary side ?

[Qwert]

Qwert


All would be fine but then IF flyback voltage is stepped up to kV why I see a 100- 400V spike on primary ? Or better yet , why in car coil driver or in ordinary  DC to AC inverter mosfet has to be protected by diode (either internally of external) to avoid damage ? Something is fishy because if energy is transfered to secondary why we have problems on primary side ?

Read it again:

... In both instances, the primary winding requires a waveform with a very high rate of voltage or current change. Such a waveform induces a high voltage counter EMF in the primary and it is this induced voltage which is stepped-up further in the secondary. Thus in an automobile ignition system, the abrupt cut-off of the applied 12 V  induces a counter EMF in the primary with a peak amplitude of about 250-300 V. When this purposely-produced 'transient' is multiplied by a 100 to 1 step-up turns ratio, one obtains the 25 kV or so needed for reliable firing of the plugs.

About 250-300V, in primary; you say 100-400V; maybe your data is somewhat less accurate. After all it's an excerpt from a specialized handbook.

This problem was already on stake, this guy claims there is difference between cars an Tesla coil:

http://www.overunity.com/8841/electrical-igniter-for-gas-engines-a-keystone-to-understanding-by-magluvin/msg231175/#msg231175