====== Envelope Follower ====== based on Harry Bissel\\ a SMD Variant, ready for Pick and Place\\ open-hardware, all Kicad-Files, and Gerbers are includet!\\ {{:phatline:ENV-Follower-3D-rotate.png?500|}}\\ --shown 2 identical boards on one pcb - to save money.. ===== Features ===== * audio in * Envelope out * Gate out + Gate Threshold-Poti\\ * Full-wave rectifier\\ * 3 identical Peakdetectors which are Reseted from a "stepper"\\ * a Osciallator with tunable Frequency to drive the stepper\\ * Smoothingcap set via Jumper\\ * Debugging Jumpers\\ * PTC and Diode Polarity Protection on the Supply-side\\ ====== Hardware Requirements ====== * This Device i build as input module for my [[CV1]] Project, but can be used for other things too\\ * Soldering Iron - with a Dip that can Handle SMD-Parts, Wires, solder Paste...\\ * Eurorack Power Source +-12V!\\ ====== Building ====== The Design is optimized for Pick and Place most SMD Parts are on the Top-PCB\\ i ordered 5 PCBs from JLCPCP with almost all SMD Parts presoldered(except 2 SOIC chips PTC and Protection Diode) \\ now waiting for Presoldered PCBs\\ {{:phatline:ENV-Follower-PCB.png?500|}}\\ ==== Frontpanel ==== FIXME - Eurorack Alu-Plate\\ ===== BOM LCSC===== these are the parts which are presoldered by the Pick and Place Machine, these are "Basic" Parts\\ the values with a "x" in it, like Dx1 --- are because there are 2 Identical Parts on 1 PCB, because there 2PCBs on 1PCB.... so Dx1 is the same like D1, but its position is on the second board.\\ ^Value^Designator^Footprint^LCSC Part Number^Library-Type^ |100nF|C1,CU1,CI1,CIx1,CUx1,Cx1,CU2,CI2,CIx2,CUx2,CP3,CI3,CIx3,CPx3,CP4,CI4,CIx4,CPx4,C4,Cx4,CI5,CIx5,CI6,CIx6,CI7,CIx7,CI8,CIx8,CI9,CIx9,CI10,CIx10|1206|C24497| |1nF|C102,Cx102,C103,Cx103,C202,Cx202,C203,Cx203,C302,Cx302,C303,Cx303|1206|C35216| |47uF|CP1,CPx1,CP2,CPx2|1206|C96123| |1N4148W|D1,Dx1,D2,Dx2,D7,Dx7,D8,Dx8,D103,Dx103,D104,Dx104,D105,Dx105,D106,Dx106,D203,Dx203,D204,Dx204,D205,Dx205,D206,Dx206,D303,Dx303,D304,Dx304,D305,Dx305,D306,Dx306|SOD123|C81598| |TL072|IC1,ICx1,IC2,ICx2,IC3,ICx3,IC4,ICx4,IC5,ICx5|SOIC-8|C6961| |2N3904|Q101,Qx101,Q201,Qx201,Q301,Qx301|SOT-23|C20526| |100K|R12,Rx12,R13,Rx13,R17,Rx17,R18,Rx18,R108,Rx108,R110,Rx110,R208,Rx208,R210,Rx210,R308,Rx308,R310,Rx310|1206|C17900| |1K|R1,Rx1,R8,Rx8,R11,Rx11,R20,Rx20,Ra21,Rax21|1206|C4410| |2K|R19,Rx19|1206|C17944| |10K|R3,Rx3,R4,Rx4,R5,Rx5,R6,Rx6,R7,Rx7,R15,Rx15,R16,Rx16,R109,Rx109,R209,Rx209,R309,Rx309|1206|C17902| |220|Rb21,Rbx21|1206|C17958|\\ when making 10Boards...a total of **42,44€** presoledered on the PCBsincl Shipping and Import-Taxes\\ ===== BOM Mouser===== These are the parts which has to be handsoldered\\ [[https://www.mouser.com/tools/part-list-import.aspx|copy list below, and paste in this link, you will need to order the project 2 times since 2PCBs are on 1PCB]]\\ 583-FM4002|2\\ 490-SJ1-3535NG-GR|3\\ 523-G821EU210AAL10Y|1\\ 650-MINISMDC014F-2|2\\ 771-HEF40106BTD-T|1\\ 595-CD4017BM|1\\ 652-PTV09A-3015FB103|1\\ 652-PTV09A3020FB104|1\\ \\ for prototyping i ordered:\\ **490-SJ1-3535NG-GR** instead of **490-SJ1-3535NG** because it is out of stock - so **GREEN sockets** for now!\\ \\ when making 10PCBs this make a total of ** 69,83€** incl Shipping/VAT which is free above 50€!\\ There are 2 SOICs that have to get Handsoldered, i have done this before and its easy!\\ {{:phatline:env-follower-handsolder.png?500|}}\\ the actual Picture is this {{:phatline:env-follower-3d-buttom.png?500|}}\\ ===== Overall Material Costs ===== PCB:**42,44€ +** MouserParts:** 69,83** = 111,46€ **/ 10** PCBs **= 11,14€ a PCB**\\ (where half off work is done by pick and place machine!)\\ ===== Kicad Files & Production Files ===== V1. from 05.01.2021{{:phatline:env-follower.zip|}} \\ Shematic, Board, Gerber, Pick and Place and Booms, ready for Pick and Place!\\ ---at the moment untestet, since i order the project just now!\\ as Example what you see if you got thru the ordering process:\\ {{:phatline:ENV-Follower-JLPCB-Job.png?700|}}\\ {{:phatline:ENV-Follower-JLPCB-Invoice.png?700|}}\\ ===== Shematic ===== {{:phatline:ENV-Follower-Shematic.png?800|}}\\ ===== To Do ===== frontplate\\ Debugging First Version\\ **experiment with the Smooting CAP:** a Header is connected paralell to a integrated 100nF Cap, connect there a CAP to encrease the smoothing\\ **experiment with the Frequency Pot:** a lin10K + 1K internal Serial Resistor which gives a range of 1K-12K - i also made a Header here, which you can bridge then you have 1-12K, or you put a resistor there for example a 5K, then you will get a range from 6-16K... \\ I addet some Jumpers to break the circuit for debugging or measurement\\ \\ Modding **Headers/Jumpers:**\\ {{:phatline:ENV-Follower-3D-top.png?800|}}\\ ===== Resources ===== [[https://www.muffwiggler.com/forum/viewtopic.php?f=17&t=109067#p1511975|muffwiggler-topic]]\\ [[https://www.muffwiggler.com/forum/userpix2/10917_6768_bissell_ef_schematics_11_1.jpg|modified-shematic]]\\ [[https://www.muffwiggler.com/forum/userpix2/10917_harrybisselenvfollow_5.jpg|THT-PCB]]\\ [[https://www.muffwiggler.com/forum/userpix2/10917_bissel_1.jpg|THT-PCB-Shematic-BUT Attention it is not correct!]]\\ [[https://www.muffwiggler.com/forum/userpix2/10917_bom_1.jpg|THT-PCB-BOM]]\\ [[https://www.muffwiggler.com/forum/userpix2/32564_scr01_2.png|Haralds-Hi-Clock-Measurements]]\\ I give this links because it is the source: but i cant recommend that forum! (deletes of posts, shitstorm, non constructive posts...) ====== Community users working on it ====== * **[[Phatline]]** = Programming, Documentation...\\ Just let a Private message on the forum to user already involved.\\ I have ProtoBoards here - i test one, and if it works, i can share them for Beta Testing-if you pay the postage\\