steven Posted July 12, 2006 Report Share Posted July 12, 2006 :)i did a google serch for information on this part and all i got was one page and everything i clicked on reqierd me to be a memeber or register and one page cannot be found and another the manufacter detail button dident work so can anyone here go better and give me the information on this part without the hassels , i get from trying to find out about it from sites that dont serve to well, information for parts Quote Link to comment Share on other sites More sharing options...
steven Posted July 12, 2006 Author Report Share Posted July 12, 2006 heres the circuit that part is in , can anyone tell me how much current it outputs Quote Link to comment Share on other sites More sharing options...
steven Posted July 12, 2006 Author Report Share Posted July 12, 2006 i apolisise for the error in the part number its got a 1 in the number not i Quote Link to comment Share on other sites More sharing options...
indulis Posted July 12, 2006 Report Share Posted July 12, 2006 Looks like D1 clamps the negative portion of the waveform that's AC coupled thru C4 and D2 is the rectifier. The only thing you have to keep in mind when selecting the diode is PVI (peak inverse voltage) and the current rating. Use a Schottky diode for a lower forward drop (better efficiency) and much less reverse recovery time at the expense of higher junction capacitance... if you don't care about stuff like that, use any old fast recovery with the proper ratings.What is the expected output current? Can't be much because of R1, the 1K (at 1mA of current that would be a 30V drop). You might consider a boost converter based on a 555 used as a PWM. Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted July 12, 2006 Report Share Posted July 12, 2006 Here is the Datasheet.1ss108.pdf Quote Link to comment Share on other sites More sharing options...
steven Posted July 12, 2006 Author Report Share Posted July 12, 2006 thankyou hot water wizard its great to hear from you again :) Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 12, 2006 Report Share Posted July 12, 2006 heres the circuit that part is in , can anyone tell me how much current it outputsHi Steven,Each 74HC14 inverter has an output current of about 10mA with a 1V drop. So 4 in parallel make 40mA for half the total time and the 30V output will be about 2.6mA. The 5V average current will be about 17mA when the 30V has a 2.6mA load. Quote Link to comment Share on other sites More sharing options...
indulis Posted July 13, 2006 Report Share Posted July 13, 2006 That will never happen... read my post above in regards to the value of R1!! Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 13, 2006 Report Share Posted July 13, 2006 That will never happen... read my post above in regards to the value of R1!!1mA through 1k is 1V, not 30V!Sure it will provide about 2.6mA at 30V. Quote Link to comment Share on other sites More sharing options...
steven Posted July 13, 2006 Author Report Share Posted July 13, 2006 :)thankyou fellas for the reply Quote Link to comment Share on other sites More sharing options...
indulis Posted July 13, 2006 Report Share Posted July 13, 2006 Yup......... your right!! I guess that's what happens when you get old and take a "stupid pill" in the morning!!I have not built this circuit, but I did try to simulate it in 3 different simulators, Workbench, Intusoft and MicroSim, with the same results every time. I couldn't get a output voltage greater than around 10.5V... may I ask what the origin of the circuit is?? Quote Link to comment Share on other sites More sharing options...
steven Posted July 13, 2006 Author Report Share Posted July 13, 2006 :)found on net somewhere Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 13, 2006 Report Share Posted July 13, 2006 I did try to simulate it in 3 different simulators, Workbench, Intusoft and MicroSim, with the same results every time. I couldn't get a output voltage greater than around 10.5VDid you sim it with a 74HC14 and not a CD74C14?The 74HC14 has about 10 times the output current of the ordinary Cmos CD74C14. Quote Link to comment Share on other sites More sharing options...
indulis Posted July 13, 2006 Report Share Posted July 13, 2006 Neither... an unlimited current square wave generator at frequencies from 20KHz to 300KHz. Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 13, 2006 Report Share Posted July 13, 2006 Neither... an unlimited current square wave generator at frequencies from 20KHz to 300KHz. Sorry, your frequency is far too low. The LC resonates at 2.140MHz and the circuit produces 1.5mA at 30VDC.I found the project and its test results here:http://www.interq.or.jp/japan/se-inoue/e_ckt27.htm Quote Link to comment Share on other sites More sharing options...
steven Posted July 14, 2006 Author Report Share Posted July 14, 2006 :)havent made it yet Quote Link to comment Share on other sites More sharing options...
ante Posted July 14, 2006 Report Share Posted July 14, 2006 Hi AG,From what software have you got those nice diagrams that you attached? Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 14, 2006 Report Share Posted July 14, 2006 Hi AG,From what software have you got those nice diagrams that you attached?Hi Ante,Usually I just press the keyboard's "Prt Scrn" button to copy what is in a link then paste the image into MS Paint where I crop and title it. Quote Link to comment Share on other sites More sharing options...
ante Posted July 15, 2006 Report Share Posted July 15, 2006 Hi AG,Sure, I know that part pretty well but what software made the screen in the first place? Or, did you just find it on a website? :D Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 15, 2006 Report Share Posted July 15, 2006 HI ante,Didn't you see my link to the Japanese guy's website?http://www.interq.or.jp/japan/se-inoue/e_ckt27.htm Quote Link to comment Share on other sites More sharing options...
steven Posted July 15, 2006 Author Report Share Posted July 15, 2006 thats where i got the circuit from that has the ISS108 diode in it Quote Link to comment Share on other sites More sharing options...
ante Posted July 16, 2006 Report Share Posted July 16, 2006 Oh, sorry I missed that one! :-[ So it was ripped from this Japanese site! I wonder which software he is using!? Quote Link to comment Share on other sites More sharing options...
indulis Posted July 16, 2006 Report Share Posted July 16, 2006 Even running the simulation within the recomended frequency range, I couldn't get much more than 12V. Now "tweaking" the LC, that will do a lot for the simulation (36Vout), that doesn't mean much unless it's backed-up with real world data. Quote Link to comment Share on other sites More sharing options...
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