Has anyone here constructed an overunity system that works?

[Ilya Tsimbaluk]

I decided to make a scan of the old videos and the setup I worked with...In the future, when I have time, I would like to talk about synchronous machines and flywheels...

[gyulasun]

Now I'm busy preparing the high-frequency equipment. I would like to ask a question - there is such a chip...  SPF5043Z
The datasheet says that at 400-500 MHz it can amplify by 22 dB. If I understand correctly we need to consider the power, i.e. the chip amplifies the signal by about 100 times. The maximum input power is 25 dbm, which is the equivalent of 0.3 W. Am I correct in converting the decibels to watts and decibels to times?

Hi,  data sheet includes the graph (Page 7) I attached below in which I indicated input power value of 1 mW which gets amplified to 22 dBm at 450 MHz (i.e. below the 1 dB compression point) and I indicated the corresponding voltage and power levels at 50 Ohm input and output impedances.

This link may be useful for you: https://www.everythingrf.com/rf-calculators/dbm-to-watts 

Regarding your approach for 22 dB amplification, it means 158.5 times power amplification, your 100 times estimation belongs to 20 dB power amplification.

see this link:  https://www.daycounter.com/Calculators/Decibels-Calculator.phtml   

The maximum input power for the chip is 25 dBm indeed (316 mW @50 Ohm) but it is the ABSOLUTE allowable maximum input power the chip can bear without being damaged.

Gyula

[Ilya Tsimbaluk]

Greetings, thank you so much for shedding the light. But here I have the following question - I intend to use the RA07M4047M chip
The datasheet says that the maximum input power is 70 mW. This one can output 150 mW. The amplifier itself has gain control by feeding a DC voltage to certain pins designated as Vgg. Hence the question - is the power of 70 mW the maximum power the chip can handle or is it the maximum power for the maximum gain for the Output? In other words - is it necessary to limit the input power by input? If yes, is it enough to install a resistive divider on the input of the amplifier?

[lancaIV]

A perpetuum work cycle :
from sub-Watt to Mega-Watt
https://techconnectworld.com/World2017/a.php?i=1125
https://geospatial.blogs.com/geospatial/2018/11/innovative-electric-power-sources-for-a-sustainable-future-.html
40 US$/KW production costs prediction

When this device will become comercial sold to endconsumer for 500 US$/KW

the average KWh electricity price would be,without capital tax calculation,only R.O.I.=

500 US$ / 8766 hours(= 1 year) / 11 (= estimated work life in years ) = 0,52 US¢ per KWh electricity !

       Nearly    2 KWh electricity for 1 cent ! Nice price preview !

But it is an industrial-military-political strategy device :
R&D co-financed by US federal estates !


As cheap as shale gas fob exploration,with capital tax as cheap as Saudi-Arabia world lowest cost solar electricity ! Near ex-U.S.S.R. amortized nuclear power plants power selling costs ( crypto coin mining areas !)

Instead 500 US$ for 400-300-....US$/KW endconsumer price !? After patent rights period !

The energy/power source for autonomous - low/no CO2-  society living !Beyond Lithium !

5 years after ,2018-2023 : not in media,Birmingham Technologies and their Nano-Boxx !

Would change battery market,solar cell market,wind-/water power/biomass-to-poeer exploration !

The CO2-emission-certificate-market making obsolete,unimportant !
The estates would need for searching of other tax and system tax x credit-leveraging factor 8-10   finance instruments !

Why searching for lower costs surplus power gain cycle systems ,when 40 US$/KW is the technical-financial benchmark to top = ≤ 40 US$/KW mass  production costs R&D !?

            40 US$/KW Nano-cell comparison :

~ 4¢/Wp solar cell production costs ,but only in orbit perpetuum,24/365= no Earth shadow , solar radiation !

It is also humanoid BOTs the ideal power source ,low weight and long work ,Tesla Optimus + Nano-Boxx !
10-50 infantery soldiers substituing :  20 000 US$ (Tesla Inc. price estimation,new/patent rights period)/ 8766 hours full-time war /10(up /50) substitution divisor :
the human soldier per hour battle value : 0,23 US$(divisor 10 ) ,down to 0,05 US$(divisor 50) per hour !

20 000 per Bot easily to bring down by mass REPRAP production to 4 000 US$ ! 74 Kg unit !
The 1 cent/hour battle value soldier ! Eugenics,aristocratic war-games,from tic-tac-toe middle point view !


Happy weekend wishing

OCWL


p.s.: also interestant R&D invention  ,2 articles ,from 2011 :

         https://cleantechnica.com/2011/09/20/okayama-solar-absorbers-use-%E2%80%9Cgreen-ferrite%E2%80%9D-to-generate-super-cheap-electricity-from-heat/

          https://www.greenoptimistic.com/green-ferrite-solar-cell-japan-20110920/

[gyulasun]

- is the power of 70 mW the maximum power the chip can handle

Yes.

- is it the maximum power for the maximum gain for the Output?

No. In the Features section 50 mW is recommended to get >7 W output when the V_GG=3.5 V and V_DD=7.2 V.
However, in the Typical Performance graphs (Page 4) by increasing V_DD to max 9 V (and V_GG remains at 3.5 V),  the output power can go up as high as 11 to 13 W (depends also on the frequency between 400 - 470 MHz) but you need to use good heat sink of course because drain current go up towards 3 Amper.   https://www.mitsubishielectric-mesh.com/products/pdf/ra07m4047m.pdf

- In other words - is it necessary to limit the input power by input? If yes, is it enough to install a resistive divider on the input of the amplifier?

Yes.  Use a resistive divider (Pi or T) between the output of SPF5043Z and the input of the RA07 if you need a linear amplifier chain. Do not overdrive the input of the latter.

Gyula