louis26
LR44 Battery
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« Reply #60 on: December 31, 2009, 07:39:10 PM » |
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okei na poh pla...pde poh plang alang max232...nakita ko poh kasi sa ibang forum ska threads kasi na need daw iconvert ung TTL to RS232 level kea ginagamitan ng max232..pro natry ko poh na walang max232 gumana nmn poh sya nareread na ng compim ung sinesend ng pic ko..kea lang poh ndi nalabas sa virtual terminal na nakatap sa USART ung reply ng compim na "OK" pro meron xang waveform sa oscilloscope ndi lng tlga nalabas sa virtual terminal ung reply na okei...nareread poh kea ng pic ung reply na waveform n un khit na hindi nalabas sa virtual terminal??
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The Philippine Electronics and Technology Forum
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« Reply #60 on: December 31, 2009, 07:39:10 PM » |
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louis26
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« Reply #61 on: January 11, 2010, 04:36:36 PM » |
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mga sir...tanong ko lang poh kung meron seniong nagamit ng usb-serial converter pra sa simulation ng proteus...kasi poh alang rs232 port ung laptop ko eh taz ginamit ko poh ung usb-serial kaya lang sa com port 10 yung coverter ko eh..taz ung com port n pwede sa compim is 1-4 lang poh...bka meron poh kaung maiisuggest na pwede kong gawin pra mapagana ko dito sa laptop ko ung simulation n gingawa ko...
tnx!
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Co0LėT♥
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« Reply #62 on: January 11, 2010, 04:45:19 PM » |
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dba pwede palitan com port number ng usb-serial converter... sa device manager ata yun  |
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Simpler designs are usually better.
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tiktak
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« Reply #63 on: January 11, 2010, 04:56:20 PM » |
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gamit ka ng VCP
poser ka ba? |
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Kaizer03
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« Reply #64 on: January 11, 2010, 04:56:45 PM » |
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gamit ka ng VCP
BADTRIP! ano ito pati sa elab may poser? admin kindly detect whoever the IMPAKTA user behind this matter... |
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Lend a hand for those who are in need!=) Stop Hijacking!=) More Technical Posts!=) DataSheets are enough to answer your questions!  Kaizer Killer EX Pre-Alpha |
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danny
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« Reply #65 on: January 11, 2010, 04:59:30 PM » |
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tsk tsk tsk  |
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danny
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louis26
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« Reply #66 on: January 11, 2010, 05:24:03 PM » |
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galing mo talaga sir coolet!!..idol!pogi points for you!!mwah! hahah
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Co0LėT♥
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« Reply #67 on: January 11, 2010, 05:36:08 PM » |
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wag na kiss d ka pa tootbrush eh jowk... thanks! |
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Simpler designs are usually better.
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louis26
LR44 Battery
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« Reply #68 on: January 24, 2010, 08:45:18 PM » |
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my tanong pa poh aq..kasi poh balak namen ung device namen khit brownout gumagana kea poh we decide na maglagay ng battery na 12v and kumuha poh kame ng circuit pra i step down sa 5v input..kea lang poh ung nadownload namen na ciruit in 5v 3a ..e2 poh ung circuit http://www.elecfree.com/electronic/wp-content/uploads/2009/09/12v-to-5v-3a-dc-converter-step-down-regulator.jpg ..mejo nacoconfuse lang poh aq kasi poh nabasa ko sa 7805 sa proteus na fixed voltage 5v and 1a current..pro nlkagay poh is 3a sa circuit..pde poh ba namen gamitin ung 5v 3a sa 877a?? sana poh magreply kau... |
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Kaizer03
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« Reply #69 on: January 24, 2010, 08:50:54 PM » |
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^
baket mo pa kakailanganin yung ganyan circuit?=)
you do only need 7805 for 5V regulated output..=) ang 7805 na TO-220 ang package max Current Source is 1A..=) basically pede kahit mataas ang current rate ng input mo jan,pero the max current na kaya nyang isource eh 1A lang=)
as for the ckt.. check the datasheet.. para maistabilize ang power.. you can add a 1000uF in input and 100uF cap to output =)
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Lend a hand for those who are in need!=) Stop Hijacking!=) More Technical Posts!=) DataSheets are enough to answer your questions! Kaizer Killer EX Pre-Alpha |
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louis26
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« Reply #70 on: January 24, 2010, 09:01:04 PM » |
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galing nio sir..!!!hahaha sorry ndi ko poh kasi alam na pede na yung ganun..ngtanong lang poh ako kay pareng google ayun kasi binigay nia..hehe uto-uto pla ako..haha SALAMAT!! laking tipid sa pera nun..hehe 1 point!...
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Kaizer03
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« Reply #71 on: January 24, 2010, 09:16:48 PM » |
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galing nio sir..!!!hahaha sorry ndi ko poh kasi alam na pede na yung ganun..ngtanong lang poh ako kay pareng google ayun kasi binigay nia..hehe uto-uto pla ako..haha SALAMAT!! laking tipid sa pera nun..hehe 1 point!...
nyak..hehe wala po yun, just here to help ^_^ ok lang yan.. we do all learn from our mistakes.. thanks sa points.. and goodluck sa project mo=) |
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Lend a hand for those who are in need!=) Stop Hijacking!=) More Technical Posts!=) DataSheets are enough to answer your questions! Kaizer Killer EX Pre-Alpha |
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tiktak
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« Reply #72 on: January 24, 2010, 09:27:16 PM » |
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additional sa sinabi ni gigz wag kalimutan yung heatsink para sa 7805
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louis26
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« Reply #73 on: January 25, 2010, 12:15:54 PM » |
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opoh nakabili na poh aq ng heatsink..tnx sa paalala..cguro poh okei lng naman poh na ndi na kme gumamit ng solid state relay kasi poh balak namen sa prototype namen na each pin ng 877a will control only one incandescent bulb..cguro naman poh kaya na ng mga relay sa deeco na mga 3A na contact..ndi nmn poh cguro masusunog un kasi 1 bulb lang nmn ung icocontrol nia...
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Co0LėT♥
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« Reply #74 on: January 25, 2010, 12:21:20 PM » |
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san kukunin power ng relay? 5V ba?
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louis26
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« Reply #75 on: January 25, 2010, 12:40:52 PM » |
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opoh dun sa output ng 877a (5V) my relay na poh aq na binili yung 5v coil and up to 30vdc contactor balak ko poh sanang mglagay pa ng relay na 24v coil 250v contactor..ung 1st relay ung mgeenergize sa 2nd relay..pde poh ba un..kasi poh mejo mahal ung SSR eh madaming relay ung nid namen..1 bulb each pin lang nmn poh eh...ilan poh ba current rating ng regular bulb??kaya nmn poh curo ng relay un dbah?
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Co0LėT♥
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« Reply #76 on: January 25, 2010, 12:56:39 PM » |
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mas mainam kasi before the regulator ang supply ng relay not after. this will eliminate noise reaching your pic. halimbawa 12dc ang supply tas dadaan ng 5v regulator... ang gamitin mong relay ay 12 volts. tapos kung sa 5v ka kukuha then masyado na loaded ang regulator mong 1 Amp = GSM + PIC + LCD + RELAYS.
mahal talaga ang ssr... bili ka na lang ng 15amp triac at opto.
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louis26
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« Reply #77 on: January 25, 2010, 01:07:06 PM » |
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Ganun poh ba..geh poh Salamat!!research poh muna aq ng tungkol sa triac and opto bgo poh gumawa ng circuit..SALAMAT POH...
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louis26
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« Reply #78 on: February 04, 2010, 12:43:14 AM » |
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Bka meron naman poh kayung maisasuggest na pamalit sa 7805 5v voltage regulator kasi poh mukang kulang yung current rating niya para suplayan yung 1 namen na pic16f84a na may nakakabit na dalawang 5v relay sa output nia and 1 din pohng pic16f877a na my nakakabit na 4 5v relay and GSM modem poh...kahit poh konten circuit manipulation para mapataas yung output current ng voltage regulator khit mga 3A poh sana...dbah poh mas okei na na mataas yung output current pra ndi maxadong maginit ung regulator...sana poh matulungan nio kame...salamat!!
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rdpzycho
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« Reply #79 on: February 04, 2010, 08:53:32 AM » |
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^ meron niyang sa datasheet ng 7805 (check sa National), 'yung merong pass transistor na doon dadaan ang current kapag na-exceed 'yung designed current to flow sa 78xx regulator.
pwede rin namang paghiwalayin na lang ng 7805 regulator 'yung dalawang circuit.
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