Hi All, I totally agree with Ken, folks are totally trying to over think this.
Just shine incandescents so the inventor can run. The panel will not generate any noise. Cheers, Derek Walton. > On Feb 14, 2019, at 8:41 PM, Ken Javor <[email protected]> wrote: > > OK, but why? It’s an EMI test, not a test of solar array performance. > > Ken Javor > Phone: (256) 650-5261 > > > From: Edward Price <[email protected]> > Reply-To: Edward Price <[email protected]> > Date: Thu, 14 Feb 2019 21:36:53 +0000 > To: <[email protected]> > Conversation: [PSES] Testing a product with that uses a solar panel > Subject: Re: [PSES] Testing a product with that uses a solar panel > > Ken: > > I got the impression from the original question that the solar panel was > integrated with an inverter. That means that there might be coupling > interactions between the inverter circuitry and the solar panel array > conductors and/or the solar panel support structure. Indeed, the whole solar > panel might be radiating noise that is backing up from the inverter. > > Ken, do you recall what type of light source they used to use for those > high-vacuum chambers that were used to simulate a true space environment for > satellites? Those lights would have an optimal light spectral characteristic. > Chuck might want to see if he can access one of those facilities; they could > do a solar exposure inside a shielded volume, and they wouldn’t have to pull > a vacuum. > > Maybe somebody in the solar panel industry has set up an RF shielded > enclosure dedicated to solar panel testing. I could imagine about a two-foot > diameter Solar Tube equivalent device, fitted at the top with a sun-tracking > heliostat, directing the sunlight through a honeycomb filter enclosure > penetration and onto the solar panel EUT. > > > > Ed Price > WB6WSN > Chula Vista, CA USA > > > From: Ken Javor [mailto:[email protected]] > <mailto:[email protected]]> > Sent: Thursday, February 14, 2019 8:54 AM > To: [email protected] > Subject: Re: [PSES] Testing a product with that uses a solar panel > > I am well aware that an incandescent light bulb doesn’t emit the same > spectral signature as received from the sun. > > But the test is not about the detailed performance of the solar panel, but > only that the device-under-test runs off electricity generated by the solar > panel. Unless the EMI signature somehow depends on the type of light > impinging on the panels, as opposed to a nominal electric output from the > panels, it would seem that any electrically quiet light source would suffice. > > Ken Javor > Phone: (256) 650-5261 > > From: Scott Aldous <[email protected]> > Reply-To: Scott Aldous <[email protected]> > Date: Thu, 14 Feb 2019 08:27:27 -0800 > To: <[email protected]> > Subject: Re: [PSES] Testing a product with that uses a solar panel > > Hi Ken, > > A 500W incandescent light will give you some voltage/current from your solar > panel, but it won't be representative of actual sunlight if this is important > to your test. The spectrum (or energy) for artificial light will not be the > same as the spectrum of sunlight. UL 1703 makes reference to a few different > standards, including ASTM E927 <https://www.astm.org/Standards/E927.htm> , > which describes performance requirements for a solar simulator > <https://en.wikipedia.org/wiki/Solar_simulator> . IEC 60904-9 > <https://webstore.iec.ch/publication/3880> does the same. Here > <http://www.eternalsun.com/industries/certification/> > <http://www.eternalsun.com/industries/certification/> is an example of a > solar simulator manufacturer claiming that their product is appropriate for > PV cert testing, including for IEC 61215 > <https://webstore.iec.ch/preview/info_iec61215-1%7Bed1.0%7Db.pdf> . This is > very likely overkill for what you need to do, but you should be aware of the > limitations of using a common incandescent. > > IEC 62920:2017 covers PCE (power conversion equipment, i.e. the inverter), > but not the modules themselves so I don't believe it has guidance on an > artificial light source. > > On Thu, Feb 14, 2019 at 2:09 AM John Woodgate <[email protected]> wrote: > > > > CISPR 11:2015 CSV covers radiation. IEC 62920:2017 is also needed. > > > Best wishes > John Woodgate OOO-Own Opinions Only > J M Woodgate and Associates www.woodjohn.uk <http://www.woodjohn.uk> > <http://www.woodjohn.uk/> > Rayleigh, Essex UK > > On 2019-02-14 03:36, Ken Javor wrote: > > > Waited to see if anyone would answer and didn’t see any answers, so what > about a 500 W work light? They are incandescent. > > Ken Javor > Phone: (256) 650-5261 > > > > > > From: "Grasso, Charles" <[email protected]> > <mailto:[email protected]> <mailto:[email protected]> > Reply-To: "Grasso, Charles" <[email protected]> > <mailto:[email protected]> <mailto:[email protected]> > Date: Wed, 13 Feb 2019 21:29:42 +0000 > To: <[email protected]> <mailto:[email protected]> > <mailto:[email protected]> > Conversation: Testing a product with that uses a solar panel > Subject: [PSES] Testing a product with that uses a solar panel > > Hello, > > I need to test a solar panel powered product for Radiated Emissions. The > solar panel > is integrated with the electronics. Does anyone have any ideas on how to > have the panel > function when testing in a chamber? > > I am looking at you test labs!! > > Thanks! > > Charles Grasso > W: 303-706-5467 > > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> <mailto:[email protected]> <mailto:[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html > <http://www.ieee-pses.org/list.html> (including how to unsubscribe) > <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> <mailto:[email protected]> > <mailto:[email protected]> > Mike Cantwell <[email protected]> <mailto:[email protected]> > <mailto:[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> <mailto:[email protected]> > <mailto:[email protected]> > David Heald <[email protected]> <mailto:[email protected]> > <mailto:[email protected]> > > - > ---------------------------------------------------------------- > > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> > > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html > <http://www.ieee-pses.org/list.html> (including how to unsubscribe) > <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > > > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html > <http://www.ieee-pses.org/list.html> (including how to unsubscribe) > <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > > > -- > Scott Aldous | Regulatory Compliance Program Manager | [email protected] > | 650-253-1994 > > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html > <http://www.ieee-pses.org/list.html> (including how to unsubscribe) > <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html > <http://www.ieee-pses.org/list.html> (including how to unsubscribe) > <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html > <http://www.ieee-pses.org/list.html> (including how to unsubscribe) > <http://www.ieee-pses.org/list.html> <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <[email protected] <mailto:[email protected]>> > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > Website: http://www.ieee-pses.org/ <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > For help, send mail to the list administrators: > Scott Douglas <[email protected] <mailto:[email protected]>> > Mike Cantwell <[email protected] <mailto:[email protected]>> > For policy questions, send mail to: > Jim Bacher <[email protected] <mailto:[email protected]>> > David Heald <[email protected] <mailto:[email protected]>> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
