Re: Input impedance of an energy saving fluorescent lamp (CFL) 21W
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Hi Bordodynov and all who helped,
Thank you very much for the link ?and the files for the 13W, 120V AC Compact Fluorescent lamp. Unfortunately, I was looking for a more representative power (20W or nearest and I was hoping to load up to at least 100W/VA) and 230V/240V AC 50Hz . ?I could see how to basically tweek the relevant parameters to achieve what I was looking for but I was not sure that the result would be well and truly representative. ?Besides, I discovered that I had some inherent design flaws in my inverter design which had hitherto been uncovered-- this was not the given model problem. ??After overcoming the inverter problems I found I had in my archives a ballast design from Phillips and some time ago I had written ?a spice based model for a CFL based on a paper published by Shefield University researchers. ?I have now been able to do ?an LTspice simulation for a 30W CFL( I am really looking to simulate the designed inverter output power of 500W/VA) I am still thinking about how to simulate for 500W/VA. ?Ideas most welcome
Thanks a lot everbody for your contributions
Michael
To: ltspice@... From: LTspice@... Date: Tue, 2 Aug 2016 20:33:58 +0300 Subject: Re: [LTspice] Input impedance of an energy saving fluorescent lamp (CFL) 21W
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http://ltwiki.org/?title=Components_Library_and_Circuits
CFL Circuit
13 Watt 120 VAC Compact Fluorescent
Bordodynov.
02.08.2016, 19:04, "Jerry Lee Marcel jerryleemarcel@... [LTspice]" :
> CFL's are very non-linear, in fact exhibit negative resistance. There are a few Spice models on the internet, you may have to adapt them for LTspice.
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> Le 02/08/2016 ¨¤ 17:42, michael883575@... [LTspice] a ¨¦crit?:
>
>> I am attempting to simulate a loaded inverter using the equivalent input impedance of the CF lamp as the load. Is there anybody in the group who might have an idea as to what a typical value for example for a 21W lamp might be.
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>> Thank you very much in advance
>>
>> Michael
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