2012/1/12 Peter C. Wallace <p...@mesanet.com>: > On Thu, 12 Jan 2012, Viesturs L?cis wrote: > >> Date: Thu, 12 Jan 2012 21:49:16 +0200 >> >> From: "[UTF-8] Viesturs L?cis" <viesturs.la...@gmail.com> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >> Subject: Re: [Emc-users] Servo drive? >> >> 2012/1/12 andy pugh <bodge...@gmail.com>: >> >> On 12 January 2012 18:14, Viesturs Lяяcis <viesturs.la...@gmail.com> >> wrote: >> >>>> I was meaning a 12 to 12 (or 12 to 15) one, like >>>> http://uk.rs-online.com/web/p/dc-dc-converters/6727408/ >>>> >>>> That gives the IRAMS board an isolated 15V supply, >>> >>> >>> Thanks for the link! >> >> >> I have a feeling that that might not have a large enough current >> capacity, though. I just found my proto circuit, and it has a >> transformer on it, and I probably did that for a reason. > > > The manual says: > Quiscent VCC supply current: typical = 1.6, max = 2.3 mA > > Quiesent means inactive (I would expect 60 - 100 MA at 20 KHz gate drive)
Thanks! I do not see anything else... Could it be that they have not bothered to specify max current that logics consume? Anyway, 100 mA also would do... I suspect that these are for the PWM input lines: Input bias current (OUT=LO): typical 100, max 220 μA Input bias current (OUT=HI): typical 200, max 300 μA Viesturs ------------------------------------------------------------------------------ RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
