Kapanadze Cousin - DALLY FREE ENERGY

[NickZ]

  Ok, thanks for your reply.
  Can you tell me HOW to connect a single BMR to form this full wave recitifier, or half wave, and I'll try that first.  I can't do it, though, if I'll need the different BMR (R).
  I've never worked with this type of rectifier previously, nor seen a diagram of how to go about it. 
I can wind a center tap on the smaller yoke coil's secondary winding, as well.

  I'll also dive deeper into my electronic junk pile, to see if I can come up with a rectifier that will work.

[SeaMonkey]

The diagram shows how a full wave rectifier is
connected with two diodes and a center-tapped
transformer winding.  With the Dual Diode
Common Cathode rectifier both diodes are
within the device and accessible by the three
terminals.

[magpwr]

Hi magpwr,

I drew the schematic as per your description, please tell if it is correct or needs some modification.

Your tests with the different diode types show that we have to find the best performing type for a specific job,  gotoluc, RomeroUK (and others) also wrote about this.  One would think that Schottky types should be superior but this is not always the case.
If you happen to have a Germanium diode in junkbox, it may work also well. Or if you have a Germanium transistor (any type), you could try it too, connecting it as a diode.

Ok on the 2.5 kHz frequency instead of the 2.5 MHz you wrote earlier.

Can you tell the voltage amplitude that drives the gate-source via the 1 kOhm from the signal generator? What type of generator you have I wonder.

Thanks, Gyula

hi gyulasun,

You have done a great job in interpreting my circuit layout in words.The existing turns at secondary 37 instead of 30.

Since i am on medical leave(flu bug) today.I will upload a video in youtube later today title-Finding Ferroresonance the easy way

(scope will be used to show what is happening)

Shortly i will do testing on the pot core 1st one which i had previously assembled using copper shield inside to observe if there is any charging occurring at the source capacitor. 

-------------------
I do agree having low capacitance at the mosfet gate is also important in order to lower switching current consumption.By looking at datasheet of various mosfet in hand we can easily find out which one is more suited for the job.

-----------------
I do play with microprocessor.But i can't remember the estimated power consumption at 3volts although i know it's <10mA.

Taking 1/2500khz=0.0004 or "400us" .For 2% duty cycle (2/100%)x400=8us (period of switch on state).
For switch off 400-8=392us(period of switch off state).

-------------------------------
It's afternoon over here my findings revealed that the capacitor is getting charged without battery.But feedback diode is still required else the capacitor voltage would drop.
This means the signal generator is providing power via the 1k resistor to mosfet gate at the right frequency.

It's pointless for me to create video if it does not help or provide useful tips for others in any way.

---------------------------------------------------
In the meantime i am putting all my efforts in building a don smith device base on china replication after i have concluded the secondary coil is powered by strong RF field generated from primary coil which needs mere <30mA from above 1kv.To get 1KV supply the SG3525 is driving the E-Core transformer to around 300volts then boosted to 500...1600volts using MC34063 as voltage controller which is using external IGBT connected in series(I am waiting for 1700volts transistor to arrive to proceed testing the power supply stage.)

Pcb layout for 6 igbt driver in series is completed merely waiting for some unique component to arrive to get the pin width measurement right.

I just  received those costly Cree IGBT cost $16 ea which got a total of 160ns delay compared to higher current $40 cree IGBT which which got 360ns delay.
These babies won't be used during testing stage which is replaced by other nearly fast 1200volt IGBT <200khz.

I will post next update on this device in around 2 months time.










     

[gyulasun]

  Gyula:
   

   "EDIT 2: There is a full wave rectifier circuit variation with two (independent) diodes but
this would double the output DC voltage. The drawback in this circuit for your MBR20100
types is that the output coil ought to give only 50V peak AC to match the 100V max rating.
Nevertheless, see the second figure in this link
http://www.daenotes.com/electronics/devices-circuits/voltage-multipler   
Should you test it, maybe first reduce the number of turns of the output coils or use taps on it.
Use one-one diode from the two MBRs" 

  I am going try the MBR20100CT diodes first, to see what they can do.
The AC voltage of the output coil can be reduced, as needed, to suit the MBRs, which can also help
to raise the current output level as well.
  So, can you, or Sea Monkey,  direct me as to how to connect two of those diodes together to form
a full wave rectifier? Please...  I will place that bridge on my circuit's second yoke, before placing
another lesser voltage diode inline. also.
  I'll also connect a 2200uf 16v cap across the input, as well as another higher uf cap on the
DC output side, as you suggested.

Hi NickZ,

I attached a drawing with the double diode pictures inserted and wired, (I know SeaMonkey
has also explained in the meantime).
I included both the full wave voltage doubler (here no center tap for your red coil shown earlier)
and the normal full wave rectifier with the center tapped red coil.  Notice that for the latter circuit
I did not insert the MBR diode picture for D2 diode at the bottom right but of course you have to
connect it as I show for diode D1 on top right.

EDIT: I have attached a second possibility for using only one MBR double diode in the normal full
wave rectifier circuit, (see the 2nd drawing entitled as rectifier1.png) here you do not have to use
a short piece of connecting wire between the open anodes of one MBR double diode.
The center pin of the MBR will be the positive ouput, going to the puffer cap +. 
You understand that when using the connecting wires between the anodes of an MBR, we use the
two diodes inside the MBR package in parallel and consider it as a single diode.

Gyula

[gyulasun]

....
-----------------
I do play with microprocessor.But i can't remember the estimated power consumption at 3volts
although i know it's <10mA.

Taking 1/2500khz=0.0004 or "400us" .For 2% duty cycle (2/100%)x400=8us (period of switch on state).
For switch off 400-8=392us(period of switch off state).

-------------------------------
It's afternoon over here my findings revealed that the capacitor is getting charged
without battery.But feedback diode is still required else the capacitor voltage would drop.
This means the signal generator is providing power via the 1k resistor to mosfet gate at the right frequency.

It's pointless for me to create video if it does not help or provide useful tips for others in any way.

---------------------------------------------------
....

Hi magpwr,

Thanks for reporting the tests and unfortunately it seems that 'conventional science'  is valid for this circuit,
the signal generator supplies and maintains the voltage level in the 4700uF capacitor. 
This is what I strongly suspected (and probably also prompted Farmhand to chime in).
I wish you good health (quick recovery) and keep up your excellent 'tinkering'.

Gyula