cop > 1

[guruji]

Hi Ground loop thanks for response. It's a normal bedini circuit but instead of the 1n4001 a 10k resistor and a 20k from base to collector.
This type is a solid state.
Thanks

[Groundloop]

@guruji,

It is impossible for me to guess what your circuit looks like.
Can you make a simple drawing in Windows Paint and post it here?

Groundloop.

[guruji]

Here it is

[Groundloop]

@guruji,

Keep your transistor and output diode(s) and the Neon bulb,
but wire the input to the transistor as shown in the attached drawing.
If the oscillator does not start then reverse the trigger coil. (Coil going to the base.)

Groundloop.

[Groundloop]

First test of my 555 controlled switch:

Input: 6,02 Volt at 0,1896 Amp = 1,141392 Joule
Input was from lab psu and was measured via a 0,25 Ohm 1% non-inductive resistor.
(The resistor is 1% so result may be +/- 1% off for the input.)

Out: 4,13 Volt at 0,187727 Amp = 0,775314 Joule
Output was tested by using a 22 Ohm resistor in parallel with a 10000uF cap.
(The resistor is 5% so result may be +/- 5% off for the output.)

COP = 0,55

At higher input voltage:

Input = 12,03 * 0,440 Amp = 5,293200 Joule
Out   = 9,55 * 0,434 Amp = 4,145568 Joule
COP = 0,78

So the cop is improving with higher input voltage.

Input = 15,03 Volt * 0,5568 Amp = 8,368704 Joule
Out =  12,26 Volt * 0,5572 Amp = 6,832163 Joule
COP = 0,81

Even better.

Input = 18,02 Volt * 0,6916 Amp = 12,462632 Joule
Out = 15,00 Volt * 0,6818 Amp = 10,227272 Joule
COP = 0,82

At 18 volt the transistor started to heat up a little so this is the limit for this
circuit version. The coil remained cold.

Groundloop.