Re: [PSES] EU's new approach directive transitions

David, The risk assessment you refer to below is not same as the risk assessment referred to in the new LVD (and some other NLF directives). The risk assessment below is specifically aimed at determining whether or not the product presents a risk which is sufficient to warrant post market

Re: [PSES] EU's new approach directive transitions

EN ISO 12100 is good and useful but EN ISO 14971 "Medical devices — Application of risk management to medical devices” is actually more relevant to some consumer type products Nick. > On 31 Mar 2016, at 20:32, Nyffenegger, Dave > wrote: > > Risk assessments

Re: [PSES] Commom mode current vs. differential mode current and LISN

On 3/31/2016 4:47 PM, Grasso, Charles wrote: Why are you looking at the "noise" in the time domain? What spec are you trying to comply with? It was already non-compliant and I had to find out how to fix it. I do this kind of probing to find out where [stuff] comes from and where it goes, in

Re: [PSES] EU's new approach directive transitions

Scott, With regard to the risk assessment requirement in the Directives revised under the New Legislative Framework (NLF): This excerpt is from a discussion of the proposed EU Consumer Product Safety Regulation (CPSR): The European Commission will undertake a risk analysis of the product to

Re: [PSES] EU's new approach directive transitions

Rich Life is a risk! Nothing in life is a certainty, unless you include death which is a certainly – but then when, how, why? “Risk assessment” has actually been part of safety for decades if not centuries or millennia, even if it was not formally understood to be, and there are very

Re: [PSES] Commom mode current vs. differential mode current and LISN

Hello - Why are you looking at the "noise" in the time domain? What spec are you trying to comply with? My assumption is that (if there is a LISN) there will be a spec in the frequency domain - am I wrong? Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467

Re: [PSES] EU's new approach directive transitions

Scott Xe said, “The risk assessment is unclear how to do it and any reference to follow.” I agree. Risk assessment is an abstraction. ISO/IEC Guide 51, the basis for risk assessment, defines risk as the “combination of the probability of occurrence of harm and the severity of that

Re: [PSES] EU's new approach directive transitions

Risk assessments are not new and it’s a requirement of the current Machinery Directive from 2006 and probably for some time before. A principle HS for the MD is EN ISO 12100:2010. Many of the basic concepts can be applied to non-machinery. I’d think that standard or one similar would become

Re: [PSES] Commom mode current vs. differential mode current and LISN

I didn't see the post to which Cortland is responding, but if I had I would have said that power supply noise is of two types, narrowband and broadband. The narrowband fundamental and harmonics from the switched mode power supply (SMPS) are (generally*) fixed in frequency and amplitude, and are

Re: [PSES] Commom mode current vs. differential mode current and LISN

On 3/29/2016 5:59 PM, Elliott Martinson wrote: But noise is chaotic, and subsequent measurements of the L conductor only won’t even be exactly the same. The phase relationships of different noise signals from different sources in the device are constantly changing depending on when the

Re: [PSES] EU's new approach directive transitions

There are two major changes in new LVD. One is the risk assessment that is to be the obligation for the manufacturers. The other one is that the DoC is required to have object of declaration. The risk assessment is unclear how to do it and any reference to follow. Currently there is few

[PSES] SV: [PSES] SV: [PSES] Commom mode current vs. differential mode current and LISN

Forget my respond «Real part / Magnitude / absolute value …” It is not correct. I was contacted by a friendly list member who corrected me. Best regards Amund Fra: Buzuayene, Mekonen [mailto:mekonen.buzuay...@anritsu.com] Sendt: 31. mars 2016 15:01 Til: Amund Westin

[PSES] SV: [PSES] Commom mode current vs. differential mode current and LISN

Real part / Magnitude / absolute value . https://en.wikipedia.org/wiki/Absolute_value Actually, what you see measuring by a spectrum analyzer #Amund Fra: Pawson, James [mailto:james.paw...@echostar.com] Sendt: 31. mars 2016 12:36 Til: EMC-PSTC@LISTSERV.IEEE.ORG Emne: Re: [PSES] Commom

Re: [PSES] Commom mode current vs. differential mode current and LISN

In relation to this discussion, what is the significance of the vertical lines either side of the |L| or |N|? Google doesn't recognise it as a searchable term, possibly thinks it is a logical OR symbol? Thanks James From: Elliott Martinson [mailto:elliott.martin...@etcconnect.com] Sent: 30