Apparent C.O.P. of 1.413469133935024 ...

[DeepCut]

Hi.

My latest test results :

INPUT VOLTAGE : 18.03 VDC

INPUT CURRENT : 0.15 A

INPUT WATTS  = V*I = 18.03*0.15 = 2.7045 W


LOAD : 220 Ohms


OUTPUT VOLTAGE : 29 VDC

OUTPUT CURRENT : V/R = 29/220 = 0.1318181818181818 A

OUTPUT WATTS = V*I = 29*0.1318181818181818 = 3.822727272727273 W


APPARENT C.O.P. = 3.822727272727273/2.7045 = 1.413469133935024

I have a call-out to attend to, when i get back this evening i will try to self-run.


Thanks,

Gary.

[akunkeji]

What device? Have photos?

[FatBird]

Sounds Good DeepCut.

Can you please post some photos and a diagram?

Thanks.

.

[DeepCut]

Back from work now.

Got to eat then stick the DPDT on and go for self-running.

There's only a 27 ohm difference between the load that's on now and the load that equals the input so i'm hopeful.

It's freezing here in London and once again we are seeing all the old-age pensioners sitting in their homes wearing loads of clothes and gloves because they can't afford extra heating on the government pension.

Makes me sick.


Later,

Gary.

[DeepCut]

OK, self-running blew the transistor

I'm using a DPDT switch for the self-run test and i added a cap which increased output voltage to around 330 VDC.

Does anyone know if there is a 'standard' and safe way to connect for a self-run test ?


Thanks,

Gary.