Modelling PSU?! - Page 3

pchw · 11th March 2008, 07:57 PM

What option (or method) to use to get those nice sine wave like curve in psud2?

Thanks!!

Psychobiker · 11th March 2008, 08:36 PM

Plug in all the states as described in the thread :

Then - left click and drag a LOOOOOOONG!!! rectangular box around the END of the long sweeping curve (when the voltage has stabilized).

Repeatedly do this until you can see the ripple, then just select a smaller portion to to get the 'nice' wave

CarlyBoy · 12th March 2008, 12:53 AM

Thanks for the help, folks. I still can't duplicate the results shown above. I've inputted all the data shown including the stepped load. Simulation quits with an error message:

"A current sink has pulled the voltage below zero for more than 5 mains cycles, at a time 1.907917S"

Psychobiker · 12th March 2008, 07:57 AM

I used to get that. It's due to immediate load. Can you screenshot your PSUD?

L

Psychobiker · 13th March 2008, 03:11 PM

as an aside....no load voltage today was 410VDC w/ <8mV ripple on what will be the 6V6 anode line!! I'd hazard a guess (the resistor isn't in there yet, hence I can't measure properly) that the 12SN7 line will be almost pure DC

11th March 2008, 07:57 PM	#21
pchw diyAudio Member Join Date: Apr 2006 Location: Fremont, California	What option (or method) to use to get those nice sine wave like curve in psud2? Thanks!! __________________ - Fred -

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
3d amp modelling (for solidworks)	andrew_whitham	Tubes / Valves	43	9th November 2011 07:58 PM
modelling PSU for Aikido	cbutterworth	Tubes / Valves	16	1st December 2007 03:21 PM
Modelling of mosfets	TroelsM	Parts	11	26th July 2006 05:01 AM
Yet another online modelling app	Vikash	Multi-Way	5	29th August 2003 09:07 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

11th March 2008, 08:36 PM	#22
Psychobiker diyAudio Member Join Date: Jul 2005 Location: Montréal QC	Plug in all the states as described in the thread : Then - left click and drag a LOOOOOOONG!!! rectangular box around the END of the long sweeping curve (when the voltage has stabilized). Repeatedly do this until you can see the ripple, then just select a smaller portion to to get the 'nice' wave

12th March 2008, 12:53 AM	#23
CarlyBoy diyAudio Member Join Date: Aug 2006	Thanks for the help, folks. I still can't duplicate the results shown above. I've inputted all the data shown including the stepped load. Simulation quits with an error message: "A current sink has pulled the voltage below zero for more than 5 mains cycles, at a time 1.907917S"

12th March 2008, 07:57 AM	#24
Psychobiker diyAudio Member Join Date: Jul 2005 Location: Montréal QC	I used to get that. It's due to immediate load. Can you screenshot your PSUD? L

13th March 2008, 03:11 PM	#25
Psychobiker diyAudio Member Join Date: Jul 2005 Location: Montréal QC	as an aside....no load voltage today was 410VDC w/ <8mV ripple on what will be the 6V6 anode line!! I'd hazard a guess (the resistor isn't in there yet, hence I can't measure properly) that the 12SN7 line will be almost pure DC

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)