It does contain fans. Mark Skeels Engineer Competition Electronics, Inc. TEL: 815-874-8001 FAX: 815-874-8181 www.competitionelectronics.com On 9/15/2010 10:28 AM, Michael Rigby-Jones wrote: >> -----Original Message----- >> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On > Behalf >> Of Mark E. Skeels >> Sent: 15 September 2010 16:20 >> To: Microcontroller discussion list - Public. >> Subject: Re: [EE]: temperature issues >> >> >> This design is a battery charger/discharger and the discharge > portion >> of the device will dissipate around 100W-120W with both channels on. >> >> It is designed to give a measure of capacity of battery packs. >> >> The users expect it to handle a relatively high amount of power. >> >> It's not even close to green. :-) > With that amount of power dissipation some kind of forced air cooling > might be a good idea. Certainly the Li-Ion analyser I used to have > (until an "acquaintance" borrowed it and never returned it) used what > appeared to be a PC CPU heatsink/fan assembly. Since many CPUs > dissipate over 100W this could be a cheap and effective solution. > > Regards > > Mike > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > This e-mail is intended for the person it is addressed to only. The > information contained in it may be confidential and/or protected by > law. If you are not the intended recipient of this message, you must > not make any use of this information, or copy or show it to any > person. Please contact us immediately to tell us that you have > received this e-mail, and return the original to us. Any use, > forwarding, printing or copying of this message is strictly prohibited. > No part of this message can be considered a request for goods or > services. > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .