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Search: Posts Made By: gyula
Forum: Inductive Resistor 12-14-2009, 12:18 PM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi Mike, If your present output transformer...

Hi Mike,

If your present output transformer has still got enough room for winding into its central column some turns of heavier wire, you could test loading that new low voltage output and see how...
Forum: Inductive Resistor 12-14-2009, 11:14 AM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi Mike, On your first question, to convert...

Hi Mike,

On your first question, to convert HV low current to LV high current, the first answer is to use an appropiate transformer (you have 4.3 kHz output, right?).
Here the convertion...
Forum: Inductive Resistor 08-02-2009, 05:42 PM
Replies: 3,433
Views: 396,933
Posted By gyula
I wish that from now on I could see scope...

I wish that from now on I could see scope waveform pictures taken on this circuit in which the zero voltage line and the Volts/Div in the vertical axis and the time base in milli or microsecond units...
Forum: Inductive Resistor 08-02-2009, 09:17 AM
Replies: 3,433
Views: 396,933
Posted By gyula
Well, If I am allowed to add: design engineers...

Well, If I am allowed to add: design engineers surely avoid those conditions where avalanche run away or breakdown may occur in the active device in any oscillator or amplifier or switching circuits...
Forum: Inductive Resistor 08-02-2009, 08:55 AM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi Harvey, I think you suggest a good idea...

Hi Harvey,

I think you suggest a good idea on using the Farad value capacitors. Though normally the energy transfer between two caps involves a 50% loss, this loss can be reduced significally by...
Forum: Inductive Resistor 08-02-2009, 08:31 AM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi Aaron, Well, there is the CMOS version of...

Hi Aaron,

Well, there is the CMOS version of the NE555, it is the LMC555CN or TC555C or TLC555C, see data sheet on the first: http://www.national.com/ds/LM/LMC555.pdf
It has a 15ns fall and rise...
Forum: Inductive Resistor 08-01-2009, 10:52 PM
Replies: 3,433
Views: 396,933
Posted By gyula
Considering the NE555 output stage and its...

Considering the NE555 output stage and its specifications, it has a 100ns rise and fall time when drives a load that has a maximum of 15-20pF capacitance.
In this setup here the power MOSFET type...
Forum: Inductive Resistor 07-30-2009, 01:31 PM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi David, Unfortunately the only correct...

Hi David,

Unfortunately the only correct answer I can give to your above question is to find a practical setup and test it (using NOT a bulb for the load but a pure resistor, bulbs are nonlinear...
Forum: Inductive Resistor 07-29-2009, 09:53 PM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi David, The answer for your first Q is...

Hi David,

The answer for your first Q is what you seem also to establish: it can be around 90-95%, in case of well designed pulse transformer.

On answering your second question, let's say you...
Forum: Inductive Resistor 07-28-2009, 04:38 PM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi Peter, Just wanted to ask where is the...

Hi Peter,

Just wanted to ask where is the pulse output in the schematics and your explanation clarifies it now, thanks.

I would like to propose a probably simple measurement method for getting...
Forum: Inductive Resistor 07-14-2009, 10:51 PM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi Hoppy, Ok, and sorry for not being aware...

Hi Hoppy,

Ok, and sorry for not being aware of your full contributions ( I was also blocked out from the energeticforum.com since last Saturday like some other innocent member here (Jetijs,...
Forum: Inductive Resistor 07-14-2009, 10:04 PM
Replies: 3,433
Views: 396,933
Posted By gyula
Hi Hoppy, You can consider the input lamp...

Hi Hoppy,

You can consider the input lamp and the rest of the circuit as a voltage divider, fed from the input DC source. The upper member of the voltage divider is the input lamp, the lower...
Showing results 1 to 12 of 12

 

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