http://www.zonetronik.net/ Your guide in electronics, electronic projects, electronic parts, electronic stores, electronic componets, tutorials, software, news. (audio , video , radio frequency , pcb , power supply, Robotics)... Wed, 10 Mar 2010 16:37:27 -0500 http://backend.userland.com/rss/ XOOPS WebLinks 0.9 XOOPS WebLinks zonetronik@yahoo.fr zonetronik@yahoo.fr en http://forum.allaboutcircuits.com/showthread.php?t=35392&goto=newpost helloi build an electronic circuit and i connected it to a switch with a 4 AA battery pack now all good but when i turn off the switch after few min the battry pack is hot as fire..i tried to connect ... Wed, 10 Mar 2010 13:26:43 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35392 http://forum.allaboutcircuits.com/showthread.php?t=35391&goto=newpost Hey Everybody!Im doing a circuit that must measure constantly the Level inside a Tank, i.ve done the circuit and it works! but after a couple of minutes the Sensor and PIC stops working and just turni ... Wed, 10 Mar 2010 12:56:34 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35391 http://forum.allaboutcircuits.com/showthread.php?t=35390&goto=newpost I am building a project that required that a 12v battery be used to power a motor. The problem is that I want to apply 12v to move an object but want the object to return to original position upon re ... Wed, 10 Mar 2010 12:56:14 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35390 http://forum.allaboutcircuits.com/showthread.php?t=35389&goto=newpost I want to make an AND logic gate that takes as the two inputs:1) Impulsions from a microcontroller2) High frequency signal from a NE555How do I go about doing it?I would like to know in what form the ... Wed, 10 Mar 2010 12:20:17 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35389 http://forum.allaboutcircuits.com/showthread.php?t=35388&goto=newpost I've never owned or used a multimeter before and was wondering if I need to buy an adapter of sorts to measure voltage coming from a 3.5mm (1/8") patch cable. The voltages are coming from my modu ... Wed, 10 Mar 2010 12:11:42 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35388 http://forum.allaboutcircuits.com/showthread.php?t=35387&goto=newpost I want to make an AND logic gate that takes as the two inputs:1) Impulsions from a microcontroller Wed, 10 Mar 2010 12:03:50 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35387 http://forum.allaboutcircuits.com/showthread.php?t=35386&goto=newpost Dear all,,,What are the failure causes of the following:1- Voltage sensors.2- Current sensors of current transducershow can the fault be detected in both types?. Wed, 10 Mar 2010 11:29:58 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35386 http://forum.allaboutcircuits.com/showthread.php?t=35385&goto=newpost Im using the Mesh Current Method to find the voltage across R2 (5k). I dont know how to write the equation for Loop 3.I tried removing Loop 3 from the circuit then calculating the currents for loop 1 ... Wed, 10 Mar 2010 11:22:39 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35385 http://forum.allaboutcircuits.com/showthread.php?t=35384&goto=newpost Suggest me how can i solve the following K-mapf(A,B,C)= Σm(0,1,3,A,5) Wed, 10 Mar 2010 11:14:03 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35384 http://forum.allaboutcircuits.com/showthread.php?t=35383&goto=newpost Hi I need a power supply for my project. I intend to take the plug off the the phone charger but I have no multimeter to know which line is positive. One of the two wires have a white stripe running o ... Wed, 10 Mar 2010 11:12:52 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35383 http://forum.allaboutcircuits.com/showthread.php?t=35382&goto=newpost Hi Forum. I have the following homework question. Implement the function:f(A,B,C,D,E) = sigma (0,2,4,6,10,12,13,16,20,26,28,31) with dont care 8,18,27 using two 8to1 line multiplexers and one 2to1 ... Wed, 10 Mar 2010 10:57:17 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35382 http://forum.allaboutcircuits.com/showthread.php?t=35381&goto=newpost i am driving a motor using h-bridge with mosfet, the motor suports 3A(max) and voltage rating 180V. if i am choosing a mosfet with 10A and 200V Vds, can the mosfet sustain the current ? Wed, 10 Mar 2010 10:54:25 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35381 http://forum.allaboutcircuits.com/showthread.php?t=35380&goto=newpost Hi,I have an op-amp set up as depicted in the attachment file. I have put a physical wire to VCCSENSE and varied the input voltage with a DC power supply to determine the proportionality of the readi ... Wed, 10 Mar 2010 10:47:10 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35380 http://forum.allaboutcircuits.com/showthread.php?t=35379&goto=newpost HiCan someone please explain to me the solution to the following lempel-ziv problem http://img72.yfrog.com/img72/2932/ziv1.png. Please note, the link has the problem along with the solution, however ... Wed, 10 Mar 2010 09:56:02 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35379 http://forum.allaboutcircuits.com/showthread.php?t=35378&goto=newpost Hello,i'd like to ask your opinions on this project that i'm trying to do. I want to use wireless MCU like this and interface it with a serial output camera. The intention is to link two of these to d ... Wed, 10 Mar 2010 08:37:09 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35378 http://forum.allaboutcircuits.com/showthread.php?t=35363&goto=newpost I realize there are other forums that deal with instrument tube amps and the like, but the folks at this site have been so helpful in the past, I thought I'd share this new project with you all. To ... Wed, 10 Mar 2010 00:45:22 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35363 http://forum.allaboutcircuits.com/showthread.php?t=35362&goto=newpost I've recently been doing some work with lead-acid batteries. As most of you know, these things are nuts in terms of the amount of power they can deliver - effectively they are a power supply that can ... Wed, 10 Mar 2010 00:40:23 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35362 http://forum.allaboutcircuits.com/showthread.php?t=35361&goto=newpost Hi guys,I'm working on a control system for a DC-DC converter, and I'm stuck on a certain aspect. I have the transfer function in difference equation format for my DC-DC convert, but I'm unsure how to ... Wed, 10 Mar 2010 00:39:43 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35361 http://forum.allaboutcircuits.com/showthread.php?t=35360&goto=newpost Hi everyone,I am in search of VHDL code for the shift register. If you have any one, please let me know.Thank you. Wed, 10 Mar 2010 00:22:23 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35360 http://forum.allaboutcircuits.com/showthread.php?t=35359&goto=newpost hello everyone...im new in this forum and really need your helps..sorry if my English does not very well...i have problem with my circuit..im successfully get the desired output waveform by using the ... Tue, 09 Mar 2010 22:51:22 -0500 http://forum.allaboutcircuits.com/showthread.php?t=35359