--===============0759871312== Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by pch.mit.edu id m2E3ApZi010020 there is a diode across the energizing coil for the relay. =20 What you think might have happened to that diode? > Date: Fri, 14 Mar 2008 15:53:48 +1300> From: apptech@paradise.net.nz> S= ubject: Re: question about how to filter the motor back emf effect?> To: = piclist@mit.edu> > Is there a reverse polarity diode across the relay coi= l?> > > > But how can I take that effect away? _________________________________________________________________ Windows Live Photo gallery =CA=FD=C2=EB=CF=E0=BB=FA=B5=C4=B3=AC=BC=B6=B0=E9= =C2=C2=A3=AC=C7=E1=CB=C9=B9=DC=C0=ED=BA=CD=B1=E0=BC=AD=D5=D5=C6=AC=A3=AC=BB= =B9=C4=DC=D6=C6=D7=F7=C8=AB=BE=B0=C3=C0=CD=BC=A3=A1 http://get.live.cn/product/photo.html --===============0759871312== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: 7bit -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --===============0759871312==--