Hi all
We have a medico product with a Li-Po battery back. The pack have UR approval, but this is only for the cell not including the protection/charging circuit integrated in the cell. The solution is to integrate a simple protection circuit in the main product. This could be done by a Zener diode between poles and a PTC in the positive pole + a normal Li-Po charging controller (+ diode in charger connector for external charger PSU for reveres polarity.) Is there a UL standard for Li-Po safety or is there any UL design requirements for such a protection (eg. Double the PTC and Zener diodes) Best regards, Mr. Kim Boll Jensen Bolls Rådgivning Ved Gadekæret 11F DK-3660 Stenløse Phone: +45 48 18 35 66 [email protected] www.bolls.dk - 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html 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]>
