The Philippine Electronics and Technology Forum
February 10, 2012, 04:45:43 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Search Login Register  

Pages: [1] 2   Go Down
  Print  
Author Topic: 24's shotclock TTL  (Read 2047 times)
Redskin
Size AA Battery
****

Pogi/Ganda Points: 13
Offline Offline

Gender: Male
Posts: 125



« on: March 03, 2010, 10:14:21 AM »

if someone needs a 24 shotclock using TTL's try this


the clock source is derived from the power supply itself


proteus simulation
http://rapidshare.com/files/358121741/24secshotclock.rar

i have not tested the design on a breadboard yet Grin
Logged
The Philippine Electronics and Technology Forum
« on: March 03, 2010, 10:14:21 AM »

 Logged
tiktak
Gas Turbine
**

Pogi/Ganda Points: 171
Offline Offline

Gender: Male
Posts: 2498



WWW
« Reply #1 on: March 03, 2010, 10:34:09 AM »

+1 sayo sis for sharing Cheesy
EDIT: na download ko din
Logged

Bakit andaming hindi marunong gumamit ng search?Huh
Redskin
Size AA Battery
****

Pogi/Ganda Points: 13
Offline Offline

Gender: Male
Posts: 125



« Reply #2 on: March 03, 2010, 10:41:51 AM »

ty tol Cheesy
Logged
bluegirl
Size D Battery
******

Pogi/Ganda Points: 7
Offline Offline

Gender: Female
Posts: 273

..........me..........


WWW
« Reply #3 on: March 04, 2010, 05:42:14 PM »

sis.. errror xaq sa proteus q eh... pero jan sa software mo eh working ba?
Logged

“Mathematics is made of 50 percent formulas, 50 percent proofs, and 50 percent imagination.”
Redskin
Size AA Battery
****

Pogi/Ganda Points: 13
Offline Offline

Gender: Male
Posts: 125



« Reply #4 on: March 04, 2010, 10:09:35 PM »

sis.. errror xaq sa proteus q eh... pero jan sa software mo eh working ba?
working naman ano problema hindi ma-open error pag simulation?
Logged
carlsfootprints
Lead Acid Battery
*******

Pogi/Ganda Points: 25
Offline Offline

Posts: 609



« Reply #5 on: March 06, 2010, 01:30:19 AM »

sis.. errror xaq sa proteus q eh... pero jan sa software mo eh working ba?

di ko rin maopen.. baka sa compatibility ng proteus.. 7.2 gamit ko eh..

------------------------------

anong chip ung ginamit? 74192 ba? malabo ung image eh.. hehe.. tnx redskin for sharing Smiley

------------------------------

ayan yhandz, nanjan na ung circuit mismo..
Logged

never saturate..
RaffT
Technical People
Hydroelectric
*****

Pogi/Ganda Points: 95
Online Online

Gender: Male
Posts: 3215


more on R-n-D


WWW
« Reply #6 on: March 06, 2010, 12:25:45 PM »

@redskin

 pano ba mag set ng "number 24"?  pwede kaya yan other digit aside from 24?

EDIT: meron pala.. hehe nasa 4 bit input nya ang pag set... matingnan ng ang datasheet..

thanks Smiley +1 sis
Logged

Learning is CooL! BEAM robotics/DIY UCD180/PSP/AC wtmtr/digiESRmtr/PICkit™2 clone/SGTC/SSTC/DR-SSTC
Redskin
Size AA Battery
****

Pogi/Ganda Points: 13
Offline Offline

Gender: Male
Posts: 125



« Reply #7 on: March 06, 2010, 12:29:12 PM »

@redskin

 pano ba mag set ng "number 24"?  pwede kaya yan other digit aside from 24?
puede. set mo ang gusto mong number sa parallel input ng 74192
Logged
Redskin
Size AA Battery
****

Pogi/Ganda Points: 13
Offline Offline

Gender: Male
Posts: 125



« Reply #8 on: March 06, 2010, 12:39:07 PM »

http://rapidshare.com/files/359580279/Shot_Clock.rar
heto pdf format mas malinaw
Logged
bluegirl
Size D Battery
******

Pogi/Ganda Points: 7
Offline Offline

Gender: Female
Posts: 273

..........me..........


WWW
« Reply #9 on: March 06, 2010, 04:55:23 PM »



tama na ba ito circuit? wala na ba adjustments?
Logged

“Mathematics is made of 50 percent formulas, 50 percent proofs, and 50 percent imagination.”
tiktak
Gas Turbine
**

Pogi/Ganda Points: 171
Offline Offline

Gender: Male
Posts: 2498



WWW
« Reply #10 on: March 06, 2010, 05:29:04 PM »

@redskin
diba dapat sa VCC naka tie yung UP(pin5) ng 74192 yun sabi sa datasheet na try ko na ito sa breadboard sa 60 seconds Grin
Logged

Bakit andaming hindi marunong gumamit ng search?Huh
Redskin
Size AA Battery
****

Pogi/Ganda Points: 13
Offline Offline

Gender: Male
Posts: 125



« Reply #11 on: March 06, 2010, 08:20:47 PM »

@redskin
diba dapat sa VCC naka tie yung UP(pin5) ng 74192 yun sabi sa datasheet na try ko na ito sa breadboard sa 60 seconds Grin
tama basa ko sa datasheet dapat sa positive ng supply rail ang up or dn input pero sa simulation takbo parin naman as intended kaya like sa sinabi ko sa hindi ko nasubukan ebreadboard ang circuit kayo na bahala gawa ng changes kung kailangan nyo gawin ang circuit and lets discuss kung ano ang mga problema Grin
Logged
tiktak
Gas Turbine
**

Pogi/Ganda Points: 171
Offline Offline

Gender: Male
Posts: 2498



WWW
« Reply #12 on: March 06, 2010, 08:30:48 PM »

confirmed working na ito sis Grin yun lang nakita ko mali
Logged

Bakit andaming hindi marunong gumamit ng search?Huh
Accessories
LR44 Battery
*

Pogi/Ganda Points: 0
Offline Offline

Posts: 5


« Reply #13 on: April 22, 2010, 10:10:13 AM »

Parang nakita ko na tong circuit na to at merong unting binago sa circuit! Haha

Logged
ultrasonic™
Solar Power Satellite
*****

Pogi/Ganda Points: 774
Offline Offline

Gender: Female
Posts: 6156


never be harsh coz everythng is fine


« Reply #14 on: April 28, 2010, 09:01:26 PM »

+ points  (^_^
Logged

im always walking on the rain so that no one could see me crying
tiktak
Gas Turbine
**

Pogi/Ganda Points: 171
Offline Offline

Gender: Male
Posts: 2498



WWW
« Reply #15 on: April 28, 2010, 09:15:52 PM »

Parang nakita ko na tong circuit na to at merong unting binago sa circuit! Haha



yung circuit above kelangan laging sabay yung clear at load, sa revision ni tita redskin hindi na ganun at pede ring mag pause Grin
Logged

Bakit andaming hindi marunong gumamit ng search?Huh
Redskin
Size AA Battery
****

Pogi/Ganda Points: 13
Offline Offline

Gender: Male
Posts: 125



« Reply #16 on: April 30, 2010, 04:19:28 AM »

Parang nakita ko na tong circuit na to at merong unting binago sa circuit! Haha


sorri to dissapoint u pero hindi ko kenopya from anywhere ang circuit other than nagkataon lang na meron na palang nag nakaisip nito tulad na rin sa pagapply ng mga patents sa invention kaya meron hindi ina-approbahan kung sakali man meron ng nauna sa iyong ina-akalang me bago ka idea,,, Smiley
Logged
danny
Technical People
Nuclear Reactor
*****

Pogi/Ganda Points: 277
Offline Offline

Posts: 4580



« Reply #17 on: April 30, 2010, 05:56:58 AM »

yup i agree, nde naman komot hawig at may iniba lang ng konti or (unting binago)
ay kinopya na. all circuits are almost same lang, specially
kung same parts din gagamitin, it will look like somebody else work.
some designs are evolution lang of the previous one.

its just like sa mga amps, same design topology
so it really looks like kinopya lang because they look same.
but sa biasing naman nag kakaiba, which is nde naman kalakihan din
ang difference.  Smiley
Logged

danny
DigitalMind
Technical People
Hydroelectric
*****

Pogi/Ganda Points: 219
Offline Offline

Posts: 3487


« Reply #18 on: April 30, 2010, 02:29:11 PM »

sorri to dissapoint u pero hindi ko kenopya from anywhere ang circuit other than nagkataon lang na meron na palang nag nakaisip nito tulad na rin sa pagapply ng mga patents sa invention kaya meron hindi ina-approbahan kung sakali man meron ng nauna sa iyong ina-akalang me bago ka idea,,, Smiley
yup i agree, nde naman komot hawig at may iniba lang ng konti or (unting binago)
ay kinopya na. all circuits are almost same lang, specially
kung same parts din gagamitin, it will look like somebody else work.
some designs are evolution lang of the previous one.

its just like sa mga amps, same design topology
so it really looks like kinopya lang because they look same.
but sa biasing naman nag kakaiba, which is nde naman kalakihan din
ang difference.  Smiley

if i made 555 astable circuit. does that mean meron isang tao na magsasabi sakin na parang nakita ko na itong circuit?...

from datasheet's application notes to law of physics to the even humble tv/radio amplifiers.... halos pareparehas lang. were not reinventing the wheel.
Logged
pintac
Size C Battery
*****

Pogi/Ganda Points: 5
Offline Offline

Posts: 189


e pluribus unum


« Reply #19 on: April 30, 2010, 09:11:19 PM »

Matanong ko lang bakit naka default siya sa 24 seconds? shot-clock po ba sa basketball ito?

Pwede rin kasi lagyan ng DIP switch yong D0-D7 para programmable yong default shot-clock niya para sa ibang games.

Logged
The Philippine Electronics and Technology Forum
   

 Logged
Pages: [1] 2   Go Up
  Print  
 
Jump to:  


Related Topics
Subject Started by Replies Views Last post
24 shotclock
General Digital Design
jkent_reynes 5 397 Last post January 08, 2011, 12:50:46 AM
by carlsfootprints
Powered by MySQL Powered by PHP Powered by SMF 1.1.15 | SMF © 2011, Simple Machines Valid XHTML 1.0! Valid CSS!