voltage divider calcs
in [Design]
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From: krw on 24 Apr 2010 14:42 On Sat, 24 Apr 2010 18:09:58 GMT, Jan Panteltje <pNaonStpealmtje(a)yahoo.com> wrote: >On a sunny day (Sat, 24 Apr 2010 12:12:01 -0500) it happened >"krw(a)att.bizzzzzzzzzzzz" <krw(a)att.bizzzzzzzzzzzz> wrote in ><bi96t5lr4mbbvqpcadtboii5anp48l7cc6(a)4ax.com>: > >>On Sat, 24 Apr 2010 09:43:00 -0700, John Larkin >><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >> >>>On Sat, 24 Apr 2010 15:12:19 GMT, Jan Panteltje >>><pNaonStpealmtje(a)yahoo.com> wrote: >>> >>>>On a sunny day (Sat, 24 Apr 2010 05:23:16 +0200) it happened Sjouke Burry >>>><burrynulnulfour(a)ppllaanneett.nnll> wrote in >>>><4bd26424$0$14132$703f8584(a)textnews.kpn.nl>:am still using WIN3.11 for workgroups, have not needed any >>>>>bugs fixed by M$. >>>>>You dont need a new or refurbished OS or computer every 2 years. >>>> >>>>Exactly >>>>Still running a 10 year old Duron 950 Mhz as server, and Linux of course. >>>>All backuped 2 x. >>>>When all applications run, there is no reason in the world to upgrade OS. >>>> >>>>To be honest, nothing really new, a killer application one *must* have, >>>>has happend in the last 10 years.... >>> >>>Google Earth. >> >>FPGA tools that actually work. > >You could have switched to Altera in 2000 :-) No, hardware that works is always the priority.
From: Jan Panteltje on 24 Apr 2010 14:57 On a sunny day (Sat, 24 Apr 2010 13:42:04 -0500) it happened "krw(a)att.bizzzzzzzzzzzz" <krw(a)att.bizzzzzzzzzzzz> wrote in <tqe6t598fddfg8feih0pmp90nfelhfnmct(a)4ax.com>: >On Sat, 24 Apr 2010 18:09:58 GMT, Jan Panteltje <pNaonStpealmtje(a)yahoo.com> >wrote: > >>On a sunny day (Sat, 24 Apr 2010 12:12:01 -0500) it happened >>"krw(a)att.bizzzzzzzzzzzz" <krw(a)att.bizzzzzzzzzzzz> wrote in >><bi96t5lr4mbbvqpcadtboii5anp48l7cc6(a)4ax.com>: >> >>>On Sat, 24 Apr 2010 09:43:00 -0700, John Larkin >>><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>> >>>>On Sat, 24 Apr 2010 15:12:19 GMT, Jan Panteltje >>>><pNaonStpealmtje(a)yahoo.com> wrote: >>>> >>>>>On a sunny day (Sat, 24 Apr 2010 05:23:16 +0200) it happened Sjouke Burry >>>>><burrynulnulfour(a)ppllaanneett.nnll> wrote in >>>>><4bd26424$0$14132$703f8584(a)textnews.kpn.nl>:am still using WIN3.11 for workgroups, have not needed any >>>>>>bugs fixed by M$. >>>>>>You dont need a new or refurbished OS or computer every 2 years. >>>>> >>>>>Exactly >>>>>Still running a 10 year old Duron 950 Mhz as server, and Linux of course. >>>>>All backuped 2 x. >>>>>When all applications run, there is no reason in the world to upgrade OS. >>>>> >>>>>To be honest, nothing really new, a killer application one *must* have, >>>>>has happend in the last 10 years.... >>>> >>>>Google Earth. >>> >>>FPGA tools that actually work. >> >>You could have switched to Altera in 2000 :-) > >No, hardware that works is always the priority. OK, 1999
From: krw on 24 Apr 2010 15:05 On Sat, 24 Apr 2010 18:57:09 GMT, Jan Panteltje <pNaonStpealmtje(a)yahoo.com> wrote: >On a sunny day (Sat, 24 Apr 2010 13:42:04 -0500) it happened >"krw(a)att.bizzzzzzzzzzzz" <krw(a)att.bizzzzzzzzzzzz> wrote in ><tqe6t598fddfg8feih0pmp90nfelhfnmct(a)4ax.com>: > >>On Sat, 24 Apr 2010 18:09:58 GMT, Jan Panteltje <pNaonStpealmtje(a)yahoo.com> >>wrote: >> >>>On a sunny day (Sat, 24 Apr 2010 12:12:01 -0500) it happened >>>"krw(a)att.bizzzzzzzzzzzz" <krw(a)att.bizzzzzzzzzzzz> wrote in >>><bi96t5lr4mbbvqpcadtboii5anp48l7cc6(a)4ax.com>: >>> >>>>On Sat, 24 Apr 2010 09:43:00 -0700, John Larkin >>>><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>>> >>>>>On Sat, 24 Apr 2010 15:12:19 GMT, Jan Panteltje >>>>><pNaonStpealmtje(a)yahoo.com> wrote: >>>>> >>>>>>On a sunny day (Sat, 24 Apr 2010 05:23:16 +0200) it happened Sjouke Burry >>>>>><burrynulnulfour(a)ppllaanneett.nnll> wrote in >>>>>><4bd26424$0$14132$703f8584(a)textnews.kpn.nl>:am still using WIN3.11 for workgroups, have not needed any >>>>>>>bugs fixed by M$. >>>>>>>You dont need a new or refurbished OS or computer every 2 years. >>>>>> >>>>>>Exactly >>>>>>Still running a 10 year old Duron 950 Mhz as server, and Linux of course. >>>>>>All backuped 2 x. >>>>>>When all applications run, there is no reason in the world to upgrade OS. >>>>>> >>>>>>To be honest, nothing really new, a killer application one *must* have, >>>>>>has happend in the last 10 years.... >>>>> >>>>>Google Earth. >>>> >>>>FPGA tools that actually work. >>> >>>You could have switched to Altera in 2000 :-) >> >>No, hardware that works is always the priority. > >OK, 1999 A year (backwards) doesn't make a difference. Altera crappy I/Os weren't fixable. Xilinx software was easily fixed by using Synplify.
From: Nico Coesel on 24 Apr 2010 15:28 John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >On Sat, 24 Apr 2010 13:40:06 -0400, "Michael A. Terrell" ><mike.terrell(a)earthlink.net> wrote: > >>Sjouke Burry wrote: >>> >>> Michael A. Terrell wrote: >>> > "krw(a)att.bizzzzzzzzzzzz" wrote: >>> >> Michael A. Terrell wrote: >>> >>> Jim Thompson wrote: >>> >>>> Michael A. Terrell wrote: >>> >>>>> You can still upgrade your XP computers with new motherboards RAM and >>> >>>>> hard drives, but who knows how long before MS drops all support & >>> >>>>> updates? >>> >>>> Would that be a loss ?:-) >>> >>> That depends on whether you need a bug fixed. >>> >> Get real. >>> > >>> > >>> > I didn't say that you would get it, just that you'd need it. :) >>> > >>> > >>> I am still using WIN3.11 for workgroups, have not needed any >>> bugs fixed by M$. >>> You dont need a new or refurbished OS or computer every 2 years. >> >> >> My last new computer had windows ME, ten years ago. > >We run XP on HP ProLiant "server" boxes, all identical (we've bought >15 or so) with hot-plug RAID drives. That setup is about as solid as >anything Microsoft-related gets. I'll wait a few years before >considering Windows 7... try it on a throw-away laptop first maybe. Linux may be an alternative at that point. Lets face it: if you want to run XP software you'll need something like a virtual machine to run it on Win7. So why not run XP in a virtual machine on Linux? Engineering software is always behind and upgrading is costly so WinXP compatibility is required for several years. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico(a)nctdevpuntnl (punt=.) --------------------------------------------------------------
From: Nico Coesel on 24 Apr 2010 15:34
John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: > >I have to confess: I used a 555 once. Just once, honest. It ran off 12 >volts and ran a charge pump diode thingie to make -5. Forgive me. I've used an NE555 as a crude PWM controller on several occasions. Going from -48V to +140V was the most extreme. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico(a)nctdevpuntnl (punt=.) -------------------------------------------------------------- |