@eric: Sure, but that is not the issue here. The OP clearly stated the desire to build it with a MC - and then only 6 relays need to be energized at a time.
On Sat, Aug 24, 2013 at 6:19 PM, Tidak Ada <[email protected]> wrote: > ** > It's just the challenge to do everything with relay's, including the > dividers. No MC nonsense ! > People seems to have been forgotten that dividers and clocks where build > out of flip-flops, discrete or with logic IC's... > > eric > > ------------------------------ > *From:* [email protected] [mailto:[email protected]] *On > Behalf Of *Mats Engstrom > *Sent:* zaterdag 24 augustus 2013 12:11 > *To:* [email protected] > *Subject:* Re: [neonixie-l] Re: Relay-controlled Nixie Clock > > Why is the power drain such a huge issue in the thread? The OP doesn't > plan to do anything fancy like having a huge chain of relays to decode bcd, > just simply driving them from a microcontroller straight up. > > A six-digit nixie clock would only have 6 relays on at the same time, and > a normal small 5 volt relay consumes about 150mW. That's just 0.9 W in > total - hardly anything to be concerned about especially since the nixie > digits draw 400 mW each! > > > On Fri, Aug 9, 2013 at 12:51 AM, Mark Moulding <[email protected]> wrote: > >> >> >> The clicky sound won't be very loud, but still audible if you use reed >> relays, and many of these have the added advantage of being low current >> enough to drive directly off the output pin of a microcontroller (25 mils, >> or even less). It's a little difficult to find ones rated for 250 or 300 >> volts; most have contacts rated for 100 volts, but I suspect that they >> would still work fine in this application. >> >> Here's one that only draws 10 mA, and has the suppression diode built in: >> http://www.goldmine-elec-products.com/prodinfo.asp?number=G18683 >> Since you'd only have one relay per digit energized at any time, the total >> current drain for the relays would be 60 mA, or 300 mW. Too much for a >> wristwatch, but completely reasonable for any plugged in device. I bet the >> nixie DC-DC converter will draw more. >> >> If a bit of noise doesn't bother you, and you *do* have a beefy power >> supply, you could make one using the digit wheels from a pinball machine. >> These are mounted on large rotary stepper switches, which draw *amps* while >> switching, but only for 50 mSec or so. They're pretty loud, though, and if >> you use these, you might as well just leave the number wheel mounted and >> have a pinball machine clock - maybe with a nixie remote repeater display... >> ~~ >> Mark Moulding >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send an email to [email protected]. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/ae919114-fa05-4efa-81a9-6d66453bbaf5%40googlegroups.com. >> >> >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send an email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/CAEN9bvCU9%3DkiJo9%2Brd-m_Wa%2B4Ce6KY4PzK6NhBDHUhwPm2D19g%40mail.gmail.com > . > > For more options, visit https://groups.google.com/groups/opt_out. > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send an email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/!%26!AAAAAAAAAAAYAAAAAAAAAPDddShx705MuX20yCpp0vvCgAAAEAAAADO26KtPpVxHtuO2mmJrR04BAAAAAA%3D%3D%40zeelandnet.nl > . > > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAEN9bvCCMMaXZ5C3b%2Bkqe7hZSh5r95XDT27880HnU6rgX%2B365g%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
