http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. Thu, 08 Jan 2009 09:46:36 -0800 http://backend.userland.com/rss092 Hi, Anyone use ADC08034 before? How can i measure current? I found one application from ADC08034 datasheet which i think can measure the current? But <noauthor@nospam.com> http://www.8051projects.net/forum-t1037.html i think you did not see the datasheet carefull see page 12, Differential Mux Mode of ADC08034. There its explained how the four channels can be used Ajay<contact@nospam.com> http://www.8051projects.net/forum-t1037.html emm...I'm not sure, the Table-4 MUX Addressing:ADC08034 no show the "-" in table. It just have "+".Ya, I would like to share with you that I found a Help<tangbc05@nospam.com> http://www.8051projects.net/forum-t1037.html well that is single-ended mux table... the datasheet i saw, have differential mux table too.. i send u the link... here.. Datasheet ADC08034hope this Ajay<contact@nospam.com> http://www.8051projects.net/forum-t1037.html Hi,Thank for you datasheet. Ya, youres one is different with my.I already write the code to control ADC08034 but it's not work.. I use Proteus 6.9sp5 Help<tangbc05@nospam.com> http://www.8051projects.net/forum-t1037.html Well i am sorry to say but your program is totally wrong. The thing is you simply wrote the program without understanding how the ADC is working.In yo Ajay<contact@nospam.com> http://www.8051projects.net/forum-t1037.html Sorry, i think my function name comfused you. The function ADC_Data_In is for configure the ADC. I got configurate the ADC which i define DATAIN 0x01 Help<tangbc05@nospam.com> http://www.8051projects.net/forum-t1037.html hi buddy, sorry for late reply.. coz sunday.. was out.. anyways.. so regarding this.. mm.. i think.. you are not doing the things correctly..so.. i Ajay<contact@nospam.com> http://www.8051projects.net/forum-t1037.html Hi fren..Don't worry is ok. we should enjoy our weekend. 1st i have to say thank for helping me. Thank You.This few days i already tested and found Help<tangbc05@nospam.com> http://www.8051projects.net/forum-t1037.html yes one thing is sure that you cannot simulate ADC08034. also in your schematic the option "exclude from simulation" is checked. i think it is done au Ajay<contact@nospam.com> http://www.8051projects.net/forum-t1037.html Ya, thank you very much. You let me understand alot of thing. I also no plan to use ADC08034. Because i can't get this IC in my country and i think AD Help<tangbc05@nospam.com> http://www.8051projects.net/forum-t1037.html well.. according the rule of electronics.. if the voltage is -ve then.. the current must be flowing in opposite direction.. so current measurement mus Ajay<contact@nospam.com> http://www.8051projects.net/forum-t1037.html hi...I also doing the project about measure the current by using 8051 microcontroller but I have no ideas for design the circuit. Can u attach your ci christie<christie_loke@nospam.com> http://www.8051projects.net/forum-t1037.html Hello Christie,welcome to our forum !measuring Current using 8051 is simple, it is done same way as measuring voltage.first we need to convert the cu Arun Kumar V<nura1002003@nospam.com> http://www.8051projects.net/forum-t1037.html In industries, for high AC current measurement,C.T.s are used whereas for the high DC currents a DC shunt resistor is used. the shunt resistance is de pdi33<islurpundalik@nospam.com> http://www.8051projects.net/forum-t1037.html i have try to draw low side current sensing circuit but i cannot get the output in AC form.and i not sure that my output is correct or not. thanks christie<christie_loke@nospam.com> http://www.8051projects.net/forum-t1037.html Where is the load ? and what is the value of Sense resistor ?Arun Arun Kumar V<nura1002003@nospam.com> http://www.8051projects.net/forum-t1037.html the load is R5 then the sense resistor is R4 n value is 1 ohm christie<christie_loke@nospam.com> http://www.8051projects.net/forum-t1037.html what do you call this connection ? ( i have marked ) high side or low side sensing ?pl.refer to the diagram i posted earlier and connect accordingly.A Arun Kumar V<nura1002003@nospam.com> http://www.8051projects.net/forum-t1037.html @christie maybe you haven't noticed the "thanks" button in the posts, its there for some purpose, so use it for the people who are spending time to nischay kumar<nischay.kumar@nospam.com> http://www.8051projects.net/forum-t1037.html Arun Kumar V wrote ...what do you call this connection ? ( i have marked ) high side or low side sensing ?I think it's "Other side sensing" To be fai ExperimenterUK<abx1717@nospam.com> http://www.8051projects.net/forum-t1037.html hi christie,ur ciruit looks perfectly o.k. except for the voltage levels ( just like experimenterUK said) and the output voltage u get would be of -ve pdi33<islurpundalik@nospam.com> http://www.8051projects.net/forum-t1037.html I think it's "Other side sensing" i used High side sensing and Low side sensing but "other side sensing" is new to me, LOLArun Arun Kumar V<nura1002003@nospam.com> http://www.8051projects.net/forum-t1037.html