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Author Topic: Relay  (Read 1017 times)

Offline ♥ ♥ Mel ♥ ♥

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Relay
« on: May 08, 2012, 12:51:49 PM »
Mga sir ask ko lang po kung paano magsupply ng voltage sa relay hindi ko pa po kasi masyado mgets yung source connection ng relay. pero po ok na po sakin yung logic na NC/NO

http://imageshack.us/photo/my-images/205/38070578.jpg/

http://imageshack.us/photo/my-images/42/78594056.png/

with this images mga sir yung isa relay is 6v then 12v nman dun sa isa.
yun coil A/B para matrigger yung 2nd switch is 5v sa mcu and 6v dun sa isa image.

dun po sa mcu meron po 12v na naka connect sa relay san po pins ng relay icconect yun ???
tska sa ldr circuit wala po naka connect 6v source which is na indicate lng 6v relay ???
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Relay
« on: May 08, 2012, 12:51:49 PM »

Offline Interlock()

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Re: Relay
« Reply #1 on: May 08, 2012, 04:39:48 PM »
gamit ka ng multimeter saka try to analyze well your circuit...
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Re: Relay
« Reply #1 on: May 08, 2012, 04:39:48 PM »

Offline ♥ ♥ Mel ♥ ♥

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Re: Relay
« Reply #2 on: May 08, 2012, 08:36:45 PM »
sir meron po b value yung mga ldr ???
2 ohms po naku2ha ko sa isa lldr then 7 ohms nman po sa isa
Truth may suffer but it cannot perish -St. Teresa of Jesus

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Re: Relay
« Reply #2 on: May 08, 2012, 08:36:45 PM »

Offline e-tronix

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Re: Relay
« Reply #3 on: May 08, 2012, 08:42:27 PM »
Mga sir ask ko lang po kung paano magsupply ng voltage sa relay hindi ko pa po kasi masyado mgets yung source connection ng relay. pero po ok na po sakin yung logic na NC/NO

http://imageshack.us/photo/my-images/205/38070578.jpg/

http://imageshack.us/photo/my-images/42/78594056.png/

with this images mga sir yung isa relay is 6v then 12v nman dun sa isa.
yun coil A/B para matrigger yung 2nd switch is 5v sa mcu and 6v dun sa isa image.

dun po sa mcu meron po 12v na naka connect sa relay san po pins ng relay icconect yun ???
tska sa ldr circuit wala po naka connect 6v source which is na indicate lng 6v relay ???
ahaha hindi pa ok sayo ang nc/no kung ganyan.

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Re: Relay
« Reply #3 on: May 08, 2012, 08:42:27 PM »

Offline Gwenda

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Re: Relay
« Reply #4 on: May 08, 2012, 10:29:56 PM »
Baliktad ata yung NO at NC ng relay mo.  LDRs have ohm readings in the Kohms to 100Kohms depending on the light striking them.

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Re: Relay
« Reply #4 on: May 08, 2012, 10:29:56 PM »

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Re: Relay
« Reply #5 on: May 08, 2012, 10:36:10 PM »
*http://www.elab.ph/forum/index.php?topic=33717.msg632945#msg632945
*http://www.elab.ph/forum/index.php?topic=37150.0

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Re: Relay
« Reply #6 on: May 08, 2012, 10:36:47 PM »
*http://www.elab.ph/forum/index.php?topic=33717.msg632945#msg632945
*http://www.elab.ph/forum/index.php?topic=37150.0

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Re: Relay
« Reply #7 on: May 08, 2012, 10:41:23 PM »
hanapin mo yung terminal na merong ohmic reading na ilang ohms or more than that. Reading yun ng relay coil.


yung iba nun ay common point,NC AT NO contact. Ang magkakasama dapat eh common, no at nc. commcon mark with c letter.

yung relay meron minsan icon na nakalagay na parang coil spring yung magkabilang dulo nun hanapin mo.
*http://www.elab.ph/forum/index.php?topic=33717.msg632945#msg632945
*http://www.elab.ph/forum/index.php?topic=37150.0

Offline Gwenda

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Re: Relay
« Reply #8 on: May 08, 2012, 10:44:51 PM »
my mistake, tama ata yung connection ng NC & NO.  Sorry.

Offline ultrasonic™

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Re: Relay
« Reply #9 on: May 09, 2012, 11:45:50 AM »


sis can u post.. anung klaseng relay yan ?
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Offline bravokilo

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Re: Relay
« Reply #10 on: May 09, 2012, 02:19:32 PM »
yun relay naman simple lang. Una, hanapin yung 2 terminals na andun ang coil. nasa tabi nakalagay ilang volt coil yun, 6, 12, 24 V. Resistance test....kung zero...hinde yun...closed contacts yan or normally closed. connect the supply dun. You can har a click at kung see through, u can see the contact closing. AYUN!

Now, kung SPST, 3 ang terminals natira. Kung DPDT, eh si apat pa. Well, look for the NO and NC for normally open and normally closed. Yun NO, kapag may supply sa coil magiging closed and vice versa.

Offline Interlock()

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Re: Relay
« Reply #11 on: May 09, 2012, 02:31:48 PM »
pa OT:
HB na si sis Bravo... :D
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Offline ♥ ♥ Mel ♥ ♥

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Re: Relay
« Reply #12 on: May 10, 2012, 11:07:12 PM »
ganito po gamit ko relay 6v spdt same lang po ng 12v
http://imageshack.us/photo/my-images/23/relays.jpg/

meron po ako circuit d2 ina-analyze ko po siya kaso hindi ko makita san nka connect yung 12v ng relay
http://imageshack.us/photo/my-images/834/relay.png/ ganito po connetion nya ;D
nka connect po  A sa base ng transistor and yung B po sa cathode ng Diode.



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Offline ♥ ♥ Mel ♥ ♥

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Re: Relay
« Reply #13 on: May 10, 2012, 11:12:56 PM »
Yun po pala bulb naka connect yun sa AC may socket po yun kaso nakalimutan ko ilagay sa drawing.
bali po yung main switch para matrigger yung relay is 5v na manggagaling sa mcu pero 12v po kailangan gamitin ng relay
para magswitch sya to NC kaso wala ako makita 12v sa circuit dun lang po ako nalilito ???
Truth may suffer but it cannot perish -St. Teresa of Jesus

"All is well when we seek only the Divine Pleasure"
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Offline e-tronix

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Re: Relay
« Reply #14 on: May 15, 2012, 08:15:47 AM »
ul need a power supply with 5v and 12v output.

Offline Vandread007

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Re: Relay
« Reply #15 on: May 18, 2012, 11:40:50 PM »
Hanap ka ng lang ng 5 volts na relay..
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Offline ultrasonic™

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Re: Relay
« Reply #16 on: May 19, 2012, 08:13:24 AM »
gumamit ka nlng kaya ng LV Reg ? like 7805

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Offline akositado

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Re: Relay
« Reply #17 on: May 19, 2012, 10:35:48 AM »
pa singit saglet:

gumamit ka nlng kaya ng LV Reg ? like 7805



para saan ung 1n4001 diode?

Offline Johannah Aleksandria

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Re: Relay
« Reply #18 on: May 19, 2012, 10:42:31 AM »
Yun po pala bulb naka connect yun sa AC may socket po yun kaso nakalimutan ko ilagay sa drawing.
bali po yung main switch para matrigger yung relay is 5v na manggagaling sa mcu pero 12v po kailangan gamitin ng relay
para magswitch sya to NC kaso wala ako makita 12v sa circuit dun lang po ako nalilito ???


pwede mo i-cascade yung out ng mcu to the base of a tranny na 12v ang supply sa collector, as transistor switch. kailangan mo syempre ng 12v source.
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Re: Relay
« Reply #19 on: May 20, 2012, 02:18:45 PM »
pa singit saglet:

para saan ung 1n4001 diode?

OT:

kapag mas mabilis naubos 'yung karga ng capacitor sa input side, kailangan maghanap nung 5V side ng dadaanan ng current. though rarely nangyayari, kayang sirain ng malaking capacitor sa 5V (output) side 'yung 78xx regulator dahil walang easy current path sa load side or pabalik sa input. kaya naglalagay nung reverse diode.

protection din siya for spikes, clamped sa input voltage 'yung spikes sa load (kung 'di na kayang i-absorb ng caps).
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Re: Relay
« Reply #19 on: May 20, 2012, 02:18:45 PM »

 

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