Recent content by ernd59

Hallo, I have a question which elements are responsible for the increase of tangent delta in a X Capacitor and the reduction of its insulation resistance?

what is the the Difference between the a H bridge and half bridge power inverter? i mean both do the same job ? what are the pro and contra of using a half/H bridge ? and how would it effect the size of a transformer if I am using one thanks

Hi, How can i make my Ltepsice simulation faster ? it is taking me too much time (three days and it is not complete) the Defi diodes are supposed to hold up to 4 kv

Hi, my Voltage Multiplier Simulation does not work properly the first transformer is working just fine, the second one does not really seems to work, for the second transformer i tried to creat AC current with a mosfet, but i think I am doing it wrong :/, can you give me some tips how to...

ok

how should i save it? it is a an asc ltspice file delete the the .dox and you should be able to see it

Hi, i was looking for the Energy conversion efficiency of my circuit in Ltspice, but i find out that my Transformers is giving me strange power values i mean with K = 1 the P1 should be equel to P2 but in my case P2 is is way too small , i get equality 90% only if get rid of the Flyback...

i found this in a master thesis dating back to 2003, it is called Automatic discharge : The automatic discharge is needed to avoid the main capacitor being left at high voltages when not operated. For instance, if the capacitor is charged and the medical personnel finds it unnecessary to...

can we consider not pressing the discharge button as self-tests?

look at this Patent of a Portable defibrillators, they had a different goal but the idea is the same https://www.google.com.ar/patents/US7236823

yes, that's what i meant :)

i'm a student working on bachelor thesis, the Professor told me or what i think he told me, that in some AED "Automated external defibrillator" the charging of the capacitor and the EKG reading are done in the same time to minimise waiting period and assure the effectiveness of the defibrillation

it takes some time to charge the high voltage capacitor, and in a defibrillation every second counts. Normally while the EKG is working the capacitor is charging, I've never seen an aborted defibrillation too but theoretically it is possible

If defibrillation is not required is there an alternative method to save the enrgy for the next needed defibrillation rather than to discharge the capacitor using a resistor ?