tag:blogger.com,1999:blog-86999432012-05-19T14:30:15.099+05:30Electronic Projects and Circuit Design - Questions and Answers.delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.comBlogger116125ElexQunahttp://feedburner.google.comtag:blogger.com,1999:blog-8699943.post-9296102546198056612012-05-19T14:28:00.000+05:302012-05-19T14:30:15.137+05:302012-05-19T14:30:15.137+05:30I would like to build Optoisolated RS232 interface. I've googled a little bit, and I came across your design: RS232 with Opto-Isolation However presented schematic is of poor quality - I'm not able to read all parts numbers and their values. Is it possible for you to send me a copy of this schematic, which is more readible? Mail from M from Poland You had written to be a few months back, I suggest this circuit Isolated Full-duplex Rs232 Interface This self powered interface circuit...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/W-iQLoWxbFTAbbDXFJ9zUErbiEw/0/da"><img src="http://feedads.g.doubleclick.net/~a/W-iQLoWxbFTAbbDXFJ9zUErbiEw/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/W-iQLoWxbFTAbbDXFJ9zUErbiEw/1/da"><img src="http://feedads.g.doubleclick.net/~a/W-iQLoWxbFTAbbDXFJ9zUErbiEw/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/5L0uua-ARDQ" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2012/05/isolated-full-duplex-serial-interface.htmltag:blogger.com,1999:blog-8699943.post-54966616017320946412011-01-24T09:35:00.001+05:302011-09-10T21:23:29.186+05:302011-09-10T21:23:29.186+05:30A Mail Thread from 2008, has been posted here. This is to enable students and engineers understand : The needs in in Maintenance Automation or Marine/Ship Automation. I could not take up this task as my engineering designs are only on paper, I used to take up automation projects, a decade back, not anymore. This feedback is also to enable product designers to create a ready configurable solution for Maintenance Personnel.. I would like to suggest that - A Simple Configurable (No Programming...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/gZ7r95Vsa2pnhD_Vh1gJjhuExhk/0/da"><img src="http://feedads.g.doubleclick.net/~a/gZ7r95Vsa2pnhD_Vh1gJjhuExhk/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/gZ7r95Vsa2pnhD_Vh1gJjhuExhk/1/da"><img src="http://feedads.g.doubleclick.net/~a/gZ7r95Vsa2pnhD_Vh1gJjhuExhk/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/Bd-3KTv6GeI" height="1" width="1"/>dapj Technoreply@blogger.com0http://bbs.dapj.com/2011/01/ship-automation-and-plc-technology.htmltag:blogger.com,1999:blog-8699943.post-8759756767962497952011-01-21T21:14:00.000+05:302011-01-21T22:02:00.970+05:302011-01-21T22:02:00.970+05:30I would like to know if you offer a monitoring solution that will constantly measure ambient (air) temperature (say, 0 to 150°F), and provide a corresponding DC voltage output of either 100 mV, 1 V, 5 V, or 10 V. Do you make a unit that can be configured to do this? Mail From JPE - WV - US Analog outputs were very popular as they are inputs to Strip Chart Recorders, Later they had an extra use for PC Based Data Acquisition, data Loggers and PLC. Now we have Instruments with digital and...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/VeElG_HUKAVyg5SYyu3r6hgXWx8/0/da"><img src="http://feedads.g.doubleclick.net/~a/VeElG_HUKAVyg5SYyu3r6hgXWx8/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/VeElG_HUKAVyg5SYyu3r6hgXWx8/1/da"><img src="http://feedads.g.doubleclick.net/~a/VeElG_HUKAVyg5SYyu3r6hgXWx8/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/YSn7p0O5X08" height="1" width="1"/>dapj Technoreply@blogger.com0http://bbs.dapj.com/2011/01/temperature-meters-dp116-omega.htmltag:blogger.com,1999:blog-8699943.post-50006287423223794172011-01-21T16:44:00.000+05:302011-01-21T16:46:02.381+05:302011-01-21T16:46:02.381+05:30I am working in power plant. we have a problem on one of gas generator. the problem is that low winding insulation resistance of generator rotor. it read 800 k ohm where the other generator read greater than 10 M ohm. at full speed, there is no Kv measurement. same time no standing alarm from excitation system. all equipment are indicated okay. My question is that is the relation between low isolation resistance of generator rotor and Kv measurement? Mail from - IB SA Arabia There is no...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/E_FxaMWSFarkECMZgVXxBxPTNII/0/da"><img src="http://feedads.g.doubleclick.net/~a/E_FxaMWSFarkECMZgVXxBxPTNII/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/E_FxaMWSFarkECMZgVXxBxPTNII/1/da"><img src="http://feedads.g.doubleclick.net/~a/E_FxaMWSFarkECMZgVXxBxPTNII/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/jET7BiHPhAQ" height="1" width="1"/>dapj Technoreply@blogger.com0http://bbs.dapj.com/2011/01/winding-insulation-resistance.htmltag:blogger.com,1999:blog-8699943.post-21567935308945910672011-01-17T13:21:00.001+05:302011-01-17T13:56:45.749+05:302011-01-17T13:56:45.749+05:30Subject: Help! Date: Thursday, December 16, 2010, 4:40 PM Hello delabs I have question about one your project . The question is about the project RS232 with Opto-Isolation on schematics.dapj.com. I need this very much . Do i need to use max 232 or something else on uC side , or i connect directly on uc rxd/txd pins .I need this answer so much , im new in this . please help Best Regards Mail from SS (CC) - Russia This was done when MAX232 was not invented yet. This interfaces with...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/kAfV2tIEwfOTUMzCENRr5p7C5rw/0/da"><img src="http://feedads.g.doubleclick.net/~a/kAfV2tIEwfOTUMzCENRr5p7C5rw/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/kAfV2tIEwfOTUMzCENRr5p7C5rw/1/da"><img src="http://feedads.g.doubleclick.net/~a/kAfV2tIEwfOTUMzCENRr5p7C5rw/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/WZSjMtWub-Q" height="1" width="1"/>dapj Technoreply@blogger.com0http://bbs.dapj.com/2011/01/isolated-rs-232-serial-port-interface.htmltag:blogger.com,1999:blog-8699943.post-57081216321601274262011-01-13T11:52:00.000+05:302011-01-13T11:53:41.285+05:302011-01-13T11:53:41.285+05:30I hope you can help me with a circuit. Its a voltage sweep circuit that will sweep from 0v to10v in a 45 min time period, I'm using it for an input on a signal generator to control the output frequency. I have tried a constant current source charging a capacitor but it just didn't seem to be solid. If It can be done digitally would be great! I have been struggling to do this and its the last part of the piece for my project. Mail from CB in NA I have once answered a similar question....<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/YpMAyVSncnfNGne3iZMyZoVASVw/0/da"><img src="http://feedads.g.doubleclick.net/~a/YpMAyVSncnfNGne3iZMyZoVASVw/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/YpMAyVSncnfNGne3iZMyZoVASVw/1/da"><img src="http://feedads.g.doubleclick.net/~a/YpMAyVSncnfNGne3iZMyZoVASVw/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/TqBmWQRxCTU" height="1" width="1"/>dapj Technoreply@blogger.com0http://bbs.dapj.com/2011/01/long-duration-linear-sweep-or-ramp.htmltag:blogger.com,1999:blog-8699943.post-36350179980392386352011-01-11T17:33:00.001+05:302011-01-11T17:33:54.985+05:302011-01-11T17:33:54.985+05:30I'm looking for a source of decade counters and wonder if you can help? I don't want to build the counter, I want to buy a functioning counter module. Do you have source suggestions? Mail from SF USA On 1/1/2011 1:34 AM Try These, some are kits, some ready modules. 4017B Decade counter (5-stage Johnson counter) - Learn about the 4017 by building the DOCTRONICS Light Chaser Project: Multifunction Counter-Timer Electronic Kit K8035 - Counter-timer K8035 is a multifunction electronic...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/ze3AP1VtOY8SJse_SlHCXBjTQHw/0/da"><img src="http://feedads.g.doubleclick.net/~a/ze3AP1VtOY8SJse_SlHCXBjTQHw/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/ze3AP1VtOY8SJse_SlHCXBjTQHw/1/da"><img src="http://feedads.g.doubleclick.net/~a/ze3AP1VtOY8SJse_SlHCXBjTQHw/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/pj5TlHB5kCM" height="1" width="1"/>dapj Technoreply@blogger.com0http://bbs.dapj.com/2011/01/decade-digital-counter-module-led-and.htmltag:blogger.com,1999:blog-8699943.post-30240464338929260932010-05-18T16:12:00.000+05:302010-05-18T16:51:06.572+05:302010-05-18T16:51:06.572+05:30My name is IS and I am looking for somebody to design and build a simple circuit that controls a small computer fan using either a 120V plugin or a battery using a temperature switch... In other words I would give you the set point and at that temperature it would turn on the fan and when it drops below the set point it turns off the fan.. the temperature would have to be measured using a contact type measuring device like a thermocouple or thermistor. Mail from IS Brazil Go thru these links...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/9dXLfmTykiNVpB_LUlv4d_e9kCM/0/da"><img src="http://feedads.g.doubleclick.net/~a/9dXLfmTykiNVpB_LUlv4d_e9kCM/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/9dXLfmTykiNVpB_LUlv4d_e9kCM/1/da"><img src="http://feedads.g.doubleclick.net/~a/9dXLfmTykiNVpB_LUlv4d_e9kCM/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/i_egi7XoNM8" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2010/05/temperature-control-for-cpu.htmltag:blogger.com,1999:blog-8699943.post-16165656291402253322010-05-17T16:44:00.000+05:302010-05-17T16:45:53.931+05:302010-05-17T16:45:53.931+05:30Dear DAPJ: I would like to buy a Microphone and either #1. an oscilloscope or #2. sound oscilloscope software. For hobby purposes, I would like to sample different sounds &amp; view the various sound waves studying the amplitudes &amp; frequencies. Do you have a product that would meet these criteria? Thank you. Respectfully, Mail from MH - US No i dont sell anything. But here are a few suggestions. Simple solution for only sound - Zelscope buy only software. Test out out, buy if you like...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/BS4LGq409a3KLz3IaHCcQSMjC34/0/da"><img src="http://feedads.g.doubleclick.net/~a/BS4LGq409a3KLz3IaHCcQSMjC34/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/BS4LGq409a3KLz3IaHCcQSMjC34/1/da"><img src="http://feedads.g.doubleclick.net/~a/BS4LGq409a3KLz3IaHCcQSMjC34/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/rQZrfyxoC60" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2010/05/pc-sound-card-oscilloscope.htmltag:blogger.com,1999:blog-8699943.post-31705762521117838622010-05-14T19:22:00.000+05:302010-06-02T05:23:43.743+05:302010-06-02T05:23:43.743+05:30I am trying to find a circuit diagram for a long time, which will give me the o/p Characteristics as 12V, 0.5A &amp; 4000 Hz (or variable frequency). Will you please help me in this regard? I will be very very thankful to you. Mail from PS IN First make an Oscillator and then Power Amplify it. EDUCYPEDIA - electronics circuits oscillator. Waveform Generators, Page 1 DiscoverCircuits.com Power Amplify. Linear Amp is required, Audio Amp in not enough LM675 Power Operational...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/k7_JTEX90gAWf24sPQOOe8uj7VI/0/da"><img src="http://feedads.g.doubleclick.net/~a/k7_JTEX90gAWf24sPQOOe8uj7VI/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/k7_JTEX90gAWf24sPQOOe8uj7VI/1/da"><img src="http://feedads.g.doubleclick.net/~a/k7_JTEX90gAWf24sPQOOe8uj7VI/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/TodzgZqoaaE" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2010/05/power-oscillator-circuit-design.htmltag:blogger.com,1999:blog-8699943.post-32225186025740405562009-07-28T04:15:00.000+05:302009-07-28T04:20:02.491+05:302009-07-28T04:20:02.491+05:30Sci.Electronics.Repair FAQ Sci.Electronics.Repair Frequently Asked Question(s) (or S.E.R FAQ for short) Home Page. This site features Samuel M. Goldwasser's latest and greatest "Notes on the Troubleshooting and Repair of..." series of comprehensive repair guides for consumer electronics equipment and other household devices. There is also a great deal of other information of interest to the electronics hobbyist, experimenter, technician, engineer, and possibly even the dentist and poet....<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/937ofzcvxSj_X24R4OSsFfLP83w/0/da"><img src="http://feedads.g.doubleclick.net/~a/937ofzcvxSj_X24R4OSsFfLP83w/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/937ofzcvxSj_X24R4OSsFfLP83w/1/da"><img src="http://feedads.g.doubleclick.net/~a/937ofzcvxSj_X24R4OSsFfLP83w/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/lyqAJuEpHKE" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2009/07/scielectronicsrepair-faq.htmltag:blogger.com,1999:blog-8699943.post-3076327764052882452009-07-27T15:05:00.000+05:302009-07-27T15:09:51.175+05:302009-07-27T15:09:51.175+05:30Eng-Tips Forums - Electrical and Electronic These pages will probably help you do a design review of your new circuit or even answer a doubt in your product design. Use the Search. Electric power engineering Electric motors &amp; motor controls engineering Electrical/Electronic engineering other topics Circuit Design Programmable Logic Controllers (PLC) Communication &amp; Signal Processing engineering Antenna &amp; Propagation engineering Eng-Tips Forums<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/Qx2NIBz30dtLCdmYGX54eR3WYgQ/0/da"><img src="http://feedads.g.doubleclick.net/~a/Qx2NIBz30dtLCdmYGX54eR3WYgQ/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/Qx2NIBz30dtLCdmYGX54eR3WYgQ/1/da"><img src="http://feedads.g.doubleclick.net/~a/Qx2NIBz30dtLCdmYGX54eR3WYgQ/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/K2wtWNto_64" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2009/07/eng-tips-forums-electrical-and.htmltag:blogger.com,1999:blog-8699943.post-67118209418961244252009-07-26T21:05:00.000+05:302009-07-26T21:31:43.283+05:302009-07-26T21:31:43.283+05:30I'm using the ICL7129ACPL to construct a simple 4-1/2 digit DVM. I looked over the application notes on FE LCDs on a similar post and noticed that it listed the FE0206 4-1/2 digit LCD as compatible with the ICL7129 so I went ahead and ordered one. I did not notice that the FE0206 has a single backplane listed (BP on pins 1 and 40) whereas the ICL7129 has three seperate backplanes (BP1, BP2, and BP3). My question is: can the three seperate BP pins on the ICL7129 be combined somehow to...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/CXYXt4GnidNPAZblupVBzz82ybg/0/da"><img src="http://feedads.g.doubleclick.net/~a/CXYXt4GnidNPAZblupVBzz82ybg/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/CXYXt4GnidNPAZblupVBzz82ybg/1/da"><img src="http://feedads.g.doubleclick.net/~a/CXYXt4GnidNPAZblupVBzz82ybg/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/ql0eQcWLzvg" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2009/07/icl7129-ad-converter-needs-triplexed.htmltag:blogger.com,1999:blog-8699943.post-84640652556009826852009-03-02T05:50:00.000+05:302009-03-02T05:54:20.906+05:302009-03-02T05:54:20.906+05:30I´ve been looking at the mini-three wire 4-20mA transmiter and it is everything I need to try a new way of measuring the temperature. It is great but there are a few questions about it I hope you can answer them: - What is the meaning of RYIN and RXIN? - You say that it is a three wire circuit but I can only seen two points of connection for the PT100. Is it because the signal conditioner of the three wire PT100 isn´t drawing? - The OUTPUT connector is where I can find the 4-20 mA? I hope...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/_Kp27scCBt1-Et-Yhsnj6ERRJjE/0/da"><img src="http://feedads.g.doubleclick.net/~a/_Kp27scCBt1-Et-Yhsnj6ERRJjE/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/_Kp27scCBt1-Et-Yhsnj6ERRJjE/1/da"><img src="http://feedads.g.doubleclick.net/~a/_Kp27scCBt1-Et-Yhsnj6ERRJjE/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/SXdakfho3-Q" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2009/03/rtd-and-connections-mini-3w-4-20ma.htmltag:blogger.com,1999:blog-8699943.post-30769602750412388362009-02-18T10:16:00.000+05:302009-02-18T10:18:55.616+05:302009-02-18T10:18:55.616+05:30Electro tech online - Design Forum Electronic Projects Design/Ideas/Reviews Are you building an electronic project or want to? Maybe you need some assistance? Come and submit your electronic questions here and let our exprienced members find a solution. Micro Controllers Discuss all aspects of micro controllers - building them, coding them, etc. All controllers are welcome - PIC, BASIC, Z8 Encore!, etc. <br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/1HqHf-B7qA6MHzov9rloOzAJU5M/0/da"><img src="http://feedads.g.doubleclick.net/~a/1HqHf-B7qA6MHzov9rloOzAJU5M/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/1HqHf-B7qA6MHzov9rloOzAJU5M/1/da"><img src="http://feedads.g.doubleclick.net/~a/1HqHf-B7qA6MHzov9rloOzAJU5M/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/8GMq9SB2Rcc" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2009/02/electro-tech-online-design-forum.htmltag:blogger.com,1999:blog-8699943.post-80032178338947402812008-11-22T18:20:00.000+05:302008-11-23T01:59:14.326+05:302008-11-23T01:59:14.326+05:30Continued from uC Board is Misbehaving on Brown Out Read articles in the link you provided, thanks for that! As you have have pointed out, my circuit is not driving any motor or such loads...but it is driving a WIRELESS MODULE which draws about 165mA to 240mA from my circuit during transmission[for 4 sec] and normally it takes upto 114mA. After a time-out of 1min, I put my uC P89V51RD2 to powerdown mode[200uA in this state]. My other problem is that my batteries get supercharged upto 5.8V,...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/VaK0pDTk8pTapmI4TqhAQttCNag/0/da"><img src="http://feedads.g.doubleclick.net/~a/VaK0pDTk8pTapmI4TqhAQttCNag/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/VaK0pDTk8pTapmI4TqhAQttCNag/1/da"><img src="http://feedads.g.doubleclick.net/~a/VaK0pDTk8pTapmI4TqhAQttCNag/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/bZ4J65lA264" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/11/battery-management-and-supply-design.htmltag:blogger.com,1999:blog-8699943.post-15612819258397302482008-11-21T21:44:00.000+05:302008-11-21T21:47:01.710+05:302008-11-21T21:47:01.710+05:30Want hlp in dsigning of a binary ASK modem or Power Line Modem. Mail from AM UK Study these links .... ASK modem from NXP Semiconductors Computer Telephone Interface Amplitude-shift keying (ASK) Power-line transceivers - ST OFDM Power Line Modem - TI OFDM-Based Power Line Communication Modem delabs <br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/BmYxbxKezsJKtFKw_t7YamooDR4/0/da"><img src="http://feedads.g.doubleclick.net/~a/BmYxbxKezsJKtFKw_t7YamooDR4/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/BmYxbxKezsJKtFKw_t7YamooDR4/1/da"><img src="http://feedads.g.doubleclick.net/~a/BmYxbxKezsJKtFKw_t7YamooDR4/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/pEsGKnEY6Z8" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/11/binary-ask-modem-power-line-modem.htmltag:blogger.com,1999:blog-8699943.post-78528498934282393482008-11-16T11:20:00.000+05:302011-01-08T11:28:48.021+05:302011-01-08T11:28:48.021+05:30Can you explain me were i have to conect the three cables of the PT100 in the Circuit RTD-Pt-100-Transmitter Circuit? RTD PT100 Transmitter and Multiplexer Comment from CV of Spain You have a three wire RTD, there is also a 4 wire RTD type, This circuit can be used for both. In the 3W RTD you have two wires coming from the same point (zero ohms between them) the third wire will be 100 ohms from these two. From the two wires that are at same point take one wire and give 1mA from Q3 +...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/ZVZGQx4rHrIyi6_BqQCHk7V5ZaE/0/da"><img src="http://feedads.g.doubleclick.net/~a/ZVZGQx4rHrIyi6_BqQCHk7V5ZaE/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/ZVZGQx4rHrIyi6_BqQCHk7V5ZaE/1/da"><img src="http://feedads.g.doubleclick.net/~a/ZVZGQx4rHrIyi6_BqQCHk7V5ZaE/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/5KsLj2XfFCU" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/11/how-to-connect-rtd-to-transmitter.htmltag:blogger.com,1999:blog-8699943.post-90503758662564811272008-09-18T09:15:00.000+05:302008-09-18T09:17:32.988+05:302008-09-18T09:17:32.988+05:30message: I have a 115vac ssr powering a solenoid only pulling a 160ma. upon activation 115vac is applied, but upon deactivation 78vac is still present. I'm told I need a bleeder resistor, but no one knows exactly what size? Can you help? Mail from GH USA When a solenoid draws 160mA, you dont need a bleeder. That itself is a bleeder. The leakage of the ssr is very less, it is mainly the current thru the snubber caps. The SSR cannot leak so much, Is the solenoid a simple coil solenoid or...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/QyUwkrH5suOoguTDeMbJdcYhwZw/0/da"><img src="http://feedads.g.doubleclick.net/~a/QyUwkrH5suOoguTDeMbJdcYhwZw/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/QyUwkrH5suOoguTDeMbJdcYhwZw/1/da"><img src="http://feedads.g.doubleclick.net/~a/QyUwkrH5suOoguTDeMbJdcYhwZw/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/XA6FQys-1wQ" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/09/leakage-of-ssr-driving-ac-solenoid.htmltag:blogger.com,1999:blog-8699943.post-81928044026510463582008-08-19T20:48:00.000+05:302008-08-19T20:54:50.142+05:302008-08-19T20:54:50.142+05:30I have a customer that call out a Solid State relay and i cannot find any information on it. Can you help? It is a SP-646. I need a quote on 60 and 120 pieces. Mail from PG US Have a look at this, is this what you want. SP646 1 Form A Solid State Relay. contact them if the specs are right, ssousa.com -contact Description The SP646 is a bi-directional, single-pole, single-throw, normally open multipurpose relay. The circuit is composed of one LED on the input side which activates an...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/S0p9SzDezamSho0DSS2DwlbMyHo/0/da"><img src="http://feedads.g.doubleclick.net/~a/S0p9SzDezamSho0DSS2DwlbMyHo/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/S0p9SzDezamSho0DSS2DwlbMyHo/1/da"><img src="http://feedads.g.doubleclick.net/~a/S0p9SzDezamSho0DSS2DwlbMyHo/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/v2HEriz8yL8" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/08/sourcing-sp646-solid-state-relay.htmltag:blogger.com,1999:blog-8699943.post-35647699590110941032008-08-19T16:33:00.000+05:302008-08-19T16:43:03.969+05:302008-08-19T16:43:03.969+05:30I need to build a three phase AC(in 120V)-AC(out 440V) solid state relay to turn on or off a small(1hp) three phase AC motor. Do you have any idea? Can I use three MOC3043 and three TIC236E triacs of course with all opto LEDs in series? Mail from FJP Brazil See my SSR Circuits , Solid State Relays or SSR Choose a DC Control and AC Load SSR, That is what you seem to indicate. 1 hp = 745.699872 watts Let triac have 10 A and 600V AC ratings, BTA12600 But now BTA12600 is obsolete,...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/4Dv8BfrbI6k_TTsqQjYcpCmlkNg/0/da"><img src="http://feedads.g.doubleclick.net/~a/4Dv8BfrbI6k_TTsqQjYcpCmlkNg/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/4Dv8BfrbI6k_TTsqQjYcpCmlkNg/1/da"><img src="http://feedads.g.doubleclick.net/~a/4Dv8BfrbI6k_TTsqQjYcpCmlkNg/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/ydTDltEpFPo" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/08/three-phase-ac-ssr-for-1-hp-motor.htmltag:blogger.com,1999:blog-8699943.post-57589070423855865482008-08-19T08:50:00.000+05:302008-08-20T14:22:02.296+05:302008-08-20T14:22:02.296+05:30i have been searching for any technical help regarding my project, hypersonic speakers,but my efforts were in vain. hypersonic speakers are instresting to work upon. kindly guide if if you have any knowledge regarding the topic Mail from GA See these links ... Hypersonic Sound: Sound From Thin Air - Mix two signals in a nonlinear medium and you'll end up with four - two at the original frequencies.... Hypersonic Sound speakers are like Invisible headphones. Sound technology turns the way...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/n78ahIwCRkRGjdb7VouXtZg6Qy8/0/da"><img src="http://feedads.g.doubleclick.net/~a/n78ahIwCRkRGjdb7VouXtZg6Qy8/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/n78ahIwCRkRGjdb7VouXtZg6Qy8/1/da"><img src="http://feedads.g.doubleclick.net/~a/n78ahIwCRkRGjdb7VouXtZg6Qy8/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/jNPi8crY2G0" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/08/hypersonic-speakers-acoustic.htmltag:blogger.com,1999:blog-8699943.post-11651786313244767592008-08-12T09:41:00.000+05:302008-08-12T09:46:46.455+05:302008-08-12T09:46:46.455+05:30You may find Answers to your Questions below, Use below Resources, you can then contact me too,. Start a New Topic. Electro Tech Silicon Sam Faq ePanorama Forum Electronics Lab Forum Smart Questions Books Search All About Circuits! Google Scholar <br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/FOqimXUWqgVvoBMy3qkPCeuwJ5Y/0/da"><img src="http://feedads.g.doubleclick.net/~a/FOqimXUWqgVvoBMy3qkPCeuwJ5Y/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/FOqimXUWqgVvoBMy3qkPCeuwJ5Y/1/da"><img src="http://feedads.g.doubleclick.net/~a/FOqimXUWqgVvoBMy3qkPCeuwJ5Y/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/v9FhgWlO1po" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/08/search-forums-and-faq-resources.htmltag:blogger.com,1999:blog-8699943.post-398478494627490172008-08-07T21:50:00.000+05:302008-08-07T21:52:41.514+05:302008-08-07T21:52:41.514+05:30Some Questions, Searches about Batteries Answers Below, My Collection of Website Resources. delabs Te Lead Acid Batteries are used in Automobiles and UPS - Uninterrupted Power Supplies. Battery Banks and Arrays are used in Home and Industrial Power Systems with Solar and Wind power charging too. Chargers &amp; Charging -- Battery Management These batteries have survived many other types, for rugged high power usage, even beyond 100Kva. It is all the more important for us, to learn how to...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/IuVpTsb-sp1QIKogjWWKWrINrX0/0/da"><img src="http://feedads.g.doubleclick.net/~a/IuVpTsb-sp1QIKogjWWKWrINrX0/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/IuVpTsb-sp1QIKogjWWKWrINrX0/1/da"><img src="http://feedads.g.doubleclick.net/~a/IuVpTsb-sp1QIKogjWWKWrINrX0/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/g6Sc22vB6AI" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/08/lead-acid-batteries-faq.htmltag:blogger.com,1999:blog-8699943.post-24933367586266563112008-06-24T12:19:00.000+05:302008-06-24T12:28:09.431+05:302008-06-24T12:28:09.431+05:30I just about the circuit you made. what kind of IC is 4029N &amp; 4511N? Is it a diver/decoder? I tried to research on the datasheet but it cannot give exact specification... Mail from JT from Philippines 4029 is a Preset Dec-hex, up-dn, Counter - and 4511 is a 7-Segment Display decoder. Learn more see .... The 4029 CMOS Counter IC The Seven-Segment LED Driver Decimal Counter Plus Display Counting Circuits - Electronics Club Word doc and exe attachments i don't open. send a jpeg photo or...<br/> <br/> This post is a snippet, to see the full content visit this blog or http://www.dapj.net/. The blogs are listed at dapj Web. <p><a href="http://feedads.g.doubleclick.net/~a/1IRVsvt7HyOPmQ2QguUNjEo8FIw/0/da"><img src="http://feedads.g.doubleclick.net/~a/1IRVsvt7HyOPmQ2QguUNjEo8FIw/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/1IRVsvt7HyOPmQ2QguUNjEo8FIw/1/da"><img src="http://feedads.g.doubleclick.net/~a/1IRVsvt7HyOPmQ2QguUNjEo8FIw/1/di" border="0" ismap="true"></img></a></p><img src="http://feeds.feedburner.com/~r/ElexQuna/~4/VKowGzdyAFc" height="1" width="1"/>delabshttp://www.blogger.com/profile/13912180441358913305noreply@blogger.com0http://bbs.dapj.com/2008/06/digital-counter-4029-and-4511.html