Assuming that the light bulb acts as a constant value resistor, which over the driven period of about 30us is reasonable, then the instantaneous power through the light bulb is: 

P_BULB = V_BULB²*R_BULB.

The energy across one cycle is the integral of the power across that cycle.  The cycles are just under 300us long. 
.....

Hi,

Is that formula correct?    I think it is P_BULB=V_BULB²/R_BULB , right?

hi everyone,

I have attached a another video to show the current spike via 0.1 ohms resistor.
After which i slowly change setting on scope from 2ms to 20ns to show how the waveform would look like once it's running for some time in mili seconds.

Do observe the waveform for current spike and output.

Scope is in dc setting.

----------------------
This time what i have done is taking a hard look at Don smith secondary coil from a top down view once more.It seems i managed to spot some similarity between Don Smith(90s) and Eric Dollard version (~1985) which is being discussed.

This is my explanation what i'm seeing as shown below in plain text.
To simplify understanding i'm merely using top of coil and bottom of coil or  2d explanation.
Although coil\inductor and it's spacing between coil or winding would create Capacitance effect  are in fact 360 degree in actual layout or in circle around pvc pipe.


/ || / || / ||  (A section of Don Smith device Secondary coil from top view)
\    \     \
/    /     /
\ || \ || \ || (A section of Don Smith device Secondary coil from bottom view)

The input signal is fed via the middle a primary coil which is placed in the middle of the secondary coil setup.To prevent confusion the secondary coil is wind in cw&ccw formation.If the signal is injected via the primary coil in the middle.The longitudinal waveform would travel outwards from the middle and return back to the center.
But one side of secondary coil is intentionally tuned to 1/4 frequency of the primary coil (LC setup) with the aid of the external capacitor.


We may not be aware that 2 different frequency can travel in a given medium eg:this can also apply to wire which we all would be able understand better .2 different frequency can co-exist in a medium without conflicting or better word suppressing each other or cancelling each other out."Am i right?"
"Superimpose" is also another example.

The receiver coil is the one with the external capacitor what it likely does is to act like a receiver at the same time to only capture the frequency 1/4  as determined by the secondary coil/capacitor  LC setup.

This very same LC setup in one of the secondary coil setup would also slow down the longitudinal wave in one of the secondary coil(1/4) which is bouncing outwards and back via both  secondary coils cw&ccw at the same time.
"Think about it"




 

magpwr,

While I am very impressed with the circuit;

Your use of the function generator is injecting ~18 Watts of power (now, more than is coming in from power supply)
into the circuit and may be distorting your view of the total circuit input power, it's hard to say. I think this is unrealistic
in the real world. What I would do is substitute an RC capacitor for the right hand part of the circuit and duplicate what
is left, then construct your proposed real FET driver circuits while only sampling the function generator, then show the
outcome of the two halves circuit waveform is nearly identical. This way your power supply will be effectively supplying
all the power used by the circuit.

:S:MarkSCoffman

hi mscoffman,

I have previously mentioned about this possibility in the Dally thread about signal generator injecting extra power in the circuit besides the source.


I have now attached 4 version of this circuit for your verification to prove it's got nothing to do with signal generator.

1)IGBTs is driven  by 22 Ohms 20v signal (22 ohms for existing v6.1 circuit )
2)IGBTs is driven by 47 Ohms 20v signal
3)IGBTs is driven by 47Ohms 15volts signal (Datasheet for igbt used in circuit mentioned 15volts not 18volts or20volts.But at early stage of experiment while testing for best igbt\mosfet i just used 20volts signal) 

47 Ohms is not the suitable resistor to drive igbts since resistance is too high.

4)I just added Version 2.0 of the  22 Ohms resistor driven by 15volts signal.

To simplify verification just compare both version 22 ohms and 47 ohms driven by 20volts signal.Do you spot any changes at the output.

Take note 1 resistor is shared by 2 igbt which is not the recommended practice although it works in actual circuit.
I'm using 2x 4.7 ohms resistor for H-Bridge for actual experiment without worrying too much about being under driven.

---------------------------------

It seems TC4428 $$ can be destroyed using 19.x volts supply with no output load.The datasheet mentioned 22volts.Or it might be some spike from existing MC34063 voltage boost circuit.


 

magpwr,

While I am very impressed with the circuit;

Your use of the function generator is injecting ~18 Watts of power (now, more than is coming in from power supply)
into the circuit and may be distorting your view of the total circuit input power, it's hard to say. I think this is unrealistic
in the real world. What I would do is substitute an RC capacitor for the right hand part of the circuit and duplicate what
is left, then construct your proposed real FET driver circuits while only sampling the function generator, then show the
outcome of the two halves circuit waveform is nearly identical. This way your power supply will be effectively supplying
all the power used by the circuit.

:S:MarkSCoffman

Hi, mscoffman and all,

i think, power that considered entering to the system is power after R 22 ohm, and only a fraction of time, lets say there is Rx =2 ohm ( hope no negative resistance, tricky, confusing).

V =20;  Rt = 24 ohm ;i = v/rt =0.833 A ; then  FG power = 16.6 W 
power that considered entering to system is only :
VRX := 2 * 0.87 := 1.666 Volt ;  P := 1.666 * 0.883 := 1.48 W;
then 6 % of 1.48 W :=  0.088 watt; (averange),

please correct me poynt99 and all,

magpwr, please post scope shot that show both output of FG with F=10hz dcycle=10 % RL= 1 kohm, only FG and OSC, no other circuits, i would like to see the wave form to ensure myself how this FG generate pulse. thanks

..

Hi, mscoffman and all,

i think, power that considered entering to the system is power after R 22 ohm, and only a fraction of time, lets say there is Rx =2 ohm ( hope no negative resistance, tricky, confusing).

V =20;  Rt = 24 ohm ;i = v/rt =0.833 A ; then  FG power = 16.6 W 
power that considered entering to system is only :
VRX := 2 * 0.87 := 1.666 Volt ;  P := 1.666 * 0.883 := 1.48 W;
then 6 % of 1.48 W :=  0.088 watt; (averange),

please correct me poynt99 and all,

magpwr, please post scope shot that show both output of FG with F=10hz dcycle=10 % RL= 1 kohm, only FG and OSC, no other circuits, i would like to see the wave form to ensure myself how this FG generate pulse. thanks

..

hi Marsing,

I have attached the image of your unique request just this once for the purpose of clarifying any doubts.

Since i'm down with a flu bug today and already seen  the doctor which is just 10minutes walk away from my location.
I am now free for the whole day today else i would be free only after 4pm.

hi Marsing,

I have attached the image of your unique request just this once for the purpose of clarifying any doubts.

Since i'm down with a flu bug today and already seen  the doctor which is just 10minutes walk away from my location.
I am now free for the whole day today else i would be free only after 4pm.

HA... HA... HA... HA... HA... HA.... HA....

Magpwr, Since you got a flu, take a rest as much as you need, dont push yourself too hard,  BUT i will push you with my new unique request,  pic below.
ok i won't ask something nonsense anymore, at least for today. 
..

hi everyone,

I have placed 0.1ohms resistor in series with all the capacitors in the circuit.
This is done to increase the Equivalent Series Resistance(ESR) of the capacitors.

This will be version 6.2 .

Time to grab my 2nd round of recovery nap.

magpwr it turns out that Multisim has a nice relatively convenient power meter built in.  You can hook one up to the input and one to the output to see how you are doing.

hi MarkE,

I have done that already for someone whom requested it earlier in this topic.
I have previously attached the image of watt meter with circuit.

The watt meter showed zero watt which i was not surprise due to it's limitation in handling very narrow spikes.

--------------------------------------

Latest update -I have added 10000uf capacitor before fuse to remove spike so that we can see clearly how much current the circuit is really consuming.
Using 0.1 ohms resistor after inserting 10000uf capacitor i am finally able to see the current draw for this circuit.
85mV/0.1ohm =850mA (DC after circuit stabilized) at 6.6v input.

By adding even higher value capacitor i am still unable to get the watt meter to function.

This is it guys.This is the most accurate presentation of input current in dc i can produce.

For this experiment i have attached the most important video which everyone was looking out for.


Estimate power in watt ignoring the really really tiny ripples=0.85Ax6.6volt=5.61watts.