Hi Scott,
“The noise source should come from the unit plugged in, very low noise from the charger itself." That depends on if the charger is using a DC/DC converter in which case this may not be true! ;) James James Pawson EMC Problem Solver Unit 3 Compliance Ltd EMC Testing / Design for EMC / Problem Solving / Pre Compliance / Consultancy / Environmental & Vibration <http://www.unit3compliance.co.uk/> www.unit3compliance.co.uk // 07811 139957 2 Wellington Business Park, New Lane, Bradford, BD4 8AL Registered in England and Wales # 10574298 From: Scott Xe <[email protected]> Sent: 21 April 2020 17:55 To: [email protected] Subject: [PSES] EMC/E-Mark conformity tests I have an in-car cell phone charger. According to the supplier, if it is selling alone without mentioning for cell phone charging, it does not require E-mark compliance. If the product mentions cell phone charging, it requires e-mark testing. How is the charger tested under EMC? What is the standard load for the testing? The noise source should come from the unit plugged in, very low noise from the charger itself. As regards to similar case of external power supply, it may be on sale alone or come with class III products. For selling standalone, is it tested with e-load equivalent to the max current consumption for EMC test? For complete set (product + EPS), must the EMC test be applied to the unit together with EPS? Your guidance is appreciated! Scott - ---------------------------------------------------------------- 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 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) <http://www.ieee-pses.org/list.html> List rules: 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]>
