Re: [Emc-users] Charge Pump on Wiki
S, Kirk Wallace pis(e: On Sun, 2011-01-09 at 16:13 -0800, Kirk Wallace wrote: In case anyone might be interested, I added a charge pump page to the wiki. If any one has charge pump information or machine configurations they would like to share on that page, please add it to the page. Corrections are welcome too. http://wiki.linuxcnc.org/emcinfo.pl?About_Charge_Pumps Oops, I forgot the subject:( As e_stop_latch has near same output (one of them) it's good idea to mention it in that wiki. And just comment for 567 circuit. The 5V peak to peak is little high for them. Just use voltage divider (1/10 ratio) on input and should work. -- Gaining the trust of online customers is vital for the success of any company that requires sensitive data to be transmitted over the Web. Learn how to best implement a security strategy that keeps consumers' information secure and instills the confidence they need to proceed with transactions. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Charge Pump on Wiki
On Mon, 2011-01-10 at 08:56 +0200, Slavko Kocjancic wrote: ... snip As e_stop_latch has near same output (one of them) it's good idea to mention it in that wiki. I mentioned in the wiki that it may be appropriate to use the charge pump detector as _part_ of an e-stop system. E-stop is a bigger subject than charge pump. This may or may not be something I'll have time to get to. Oops, I now realize you're saying that e_stop_latch has a charge pump like feature? I'll look into it, thanks. And just comment for 567 circuit. The 5V peak to peak is little high for them. Just use voltage divider (1/10 ratio) on input and should work. Yes, I noticed the .2V RMS recommended maximum mentioned in the app. note. I used a 5k potentiometer as a voltage divider and found that the output changed fairly randomly at different settings for the same frequency. Varying the frequency also had peaks and valleys, which was fairly discouraging. Pulse behavior, as opposed to 50% duty, wasn't very good. I need to get the scope out to see whats going on, but the cap/diode and AVR circuits already work well, so I'm beginning to loose interest in this one. If anyone has a working, or near working, circuit (with square wave or pulse input), I can post it, but I'm not certain I'll do much more with the 567. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- Gaining the trust of online customers is vital for the success of any company that requires sensitive data to be transmitted over the Web. Learn how to best implement a security strategy that keeps consumers' information secure and instills the confidence they need to proceed with transactions. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Charge Pump on Wiki
On Mon, 2011-01-10 at 07:21 -0800, Kirk Wallace wrote: On Mon, 2011-01-10 at 08:56 +0200, Slavko Kocjancic wrote: ... snip As e_stop_latch has near same output (one of them) it's good idea to mention it in that wiki. I mentioned in the wiki that it may be appropriate to use the charge pump detector as _part_ of an e-stop system. E-stop is a bigger subject than charge pump. This may or may not be something I'll have time to get to. Oops, I now realize you're saying that e_stop_latch has a charge pump like feature? I'll look into it, thanks. ... snip I think I get it, e-stop latch should be mentioned along with the other pump enable inputs on the wiki page. A Mazak page http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?MazakEstopChain mentions the charge pump and latch so I'll need to study it. My feeling right now is that the pump should be on any time EMC2 is sane, or sane with the machine On, with the CP detector as just another switch in the e-stop loop. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- Gaining the trust of online customers is vital for the success of any company that requires sensitive data to be transmitted over the Web. Learn how to best implement a security strategy that keeps consumers' information secure and instills the confidence they need to proceed with transactions. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Charge Pump on Wiki
On Mon, 2011-01-10 at 07:47 -0800, Kirk Wallace wrote:
On Mon, 2011-01-10 at 07:21 -0800, Kirk Wallace wrote:
On Mon, 2011-01-10 at 08:56 +0200, Slavko Kocjancic wrote:
... snip
As e_stop_latch has near same output (one of them) it's good idea to
mention it in that wiki.
Uugh, there is a charge pump, or rather, watchdog in estop-latch,
...
24 if( ok_out ) {
25 /* toggle watchdog */
26 watchdog = !watchdog;
27 }
28 } else {
...
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/index.html
California, USA
--
Gaining the trust of online customers is vital for the success of any company
that requires sensitive data to be transmitted over the Web. Learn how to
best implement a security strategy that keeps consumers' information secure
and instills the confidence they need to proceed with transactions.
http://p.sf.net/sfu/oracle-sfdevnl
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Re: [Emc-users] Charge Pump on Wiki
On Sun, 2011-01-09 at 16:13 -0800, Kirk Wallace wrote: In case anyone might be interested, I added a charge pump page to the wiki. If any one has charge pump information or machine configurations they would like to share on that page, please add it to the page. Corrections are welcome too. http://wiki.linuxcnc.org/emcinfo.pl?About_Charge_Pumps Oops, I forgot the subject:( -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- Gaining the trust of online customers is vital for the success of any company that requires sensitive data to be transmitted over the Web. Learn how to best implement a security strategy that keeps consumers' information secure and instills the confidence they need to proceed with transactions. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
