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  • Abet's Avatar
    Today, 11:25 AM
    Abet replied to a thread 1000w smps based on LUDO3232 in diysmps
    Hello Silvio, I finally got hold of a 'scope, it is an old but useful 20MHz. I've been browsing the forum on how to use it in measuring an SMPS. Can...
    107 replies | 14694 view(s)
  • Abet's Avatar
    Today, 11:22 AM
    Abet replied to a thread 1000w smps based on LUDO3232 in diysmps
    Hello Silvio, I finally got hold of a 'scope, it is an old but useful 20MHz. I've been browsing the forum on how to use it in measuring an SMPS. Can...
    107 replies | 14694 view(s)
  • Silvio's Avatar
    Yesterday, 10:43 PM
    @ Kmiecikse The purpose of the brown wire forming a single loop around the trafo. This produces around 6 volts ac which then this voltage is...
    18 replies | 4758 view(s)
  • dorel's Avatar
    Yesterday, 05:43 PM
    dorel replied to a thread Labgrupen 10000q in Power Supplies
    Meanwhile I managed to do reverse engineering and I have the scheme.
    8 replies | 2485 view(s)
  • khalsa's Avatar
    Yesterday, 04:39 PM
    khalsa replied to a thread Labgrupen 10000q in Power Supplies
    Hello sir rookiex please share me khalsaaudiocenter@yahoo.com
    8 replies | 2485 view(s)
  • Easyamp's Avatar
    Yesterday, 01:33 PM
    Easyamp replied to a thread Preamp noise in Pre Amps
    I would wonder also if your amplifier and preamp share common grounds if there could be any ground loop issues as stated by Silvio? Good luck.
    2 replies | 36 view(s)
  • kmiecikse's Avatar
    Yesterday, 11:15 AM
    Hi Silvio, I want to enter into SMPS world and I have question for you. On your device picture there is one loop (brown wire). My question is:...
    18 replies | 4758 view(s)
  • Silvio's Avatar
    01-22-2018, 08:21 AM
    Silvio replied to a thread Preamp noise in Pre Amps
    Hi ENZY, Try changing the capacitors around the opamp (C1,C2,C5,C9) see how it goes, it also could be a ground loop issue. Check also the pcb for...
    2 replies | 36 view(s)
  • enzy's Avatar
    01-21-2018, 03:26 AM
    enzy started a thread Preamp noise in Pre Amps
    I have a preamp design I normally used this design but all of a sudden after building it again after a year of not using the design I hae an issue. ...
    2 replies | 36 view(s)
  • audiobrad's Avatar
    01-20-2018, 03:04 PM
    Thanks for the support Silvio
    107 replies | 14694 view(s)
  • Silvio's Avatar
    01-20-2018, 07:10 AM
    Hello Audibrad, The circuit of LUDO works if followed correctly, All the information is available on this site and it should be a successful build....
    107 replies | 14694 view(s)
  • audiobrad's Avatar
    01-19-2018, 06:51 PM
    Hi Silvio, and all diyer's! I have been trying to repair smps for a while now,some were successful and some ended up in a miniature atom bomb...
    107 replies | 14694 view(s)
  • Silvio's Avatar
    01-16-2018, 09:22 PM
    @Behrad Hi Behrad, My amplifier is class AB and stereo. I tested it with dummy load and oscilloscope. Yesterday I finished assembly and also...
    107 replies | 14694 view(s)
  • behrad's Avatar
    01-16-2018, 09:36 AM
    hi i comeback:D nice work mr silvio excellent:UP: your ampli is stereo and class AB??? 700w is very much power.this power is proper for disco.do...
    107 replies | 14694 view(s)
  • VRACH's Avatar
    01-15-2018, 05:55 AM
    VRACH replied to a thread IR2161 smps in Power Supplies
    I'm satisfied with the frequency of 34kHz at a high load and about 65kHz with a small load. Sincerely.
    25 replies | 2054 view(s)
  • VRACH's Avatar
    01-15-2018, 05:51 AM
    VRACH replied to a thread IR2161 smps in Power Supplies
    Yes, this chip does not allow changing the oscillator frequency. But this chip allows you to assemble a simple power supply with protection and...
    25 replies | 2054 view(s)
  • Silvio's Avatar
    01-14-2018, 11:01 PM
    Silvio replied to a thread IR2161 smps in Power Supplies
    @ VRACH Thanks a lot Vrach and it is good to know about the forum, The only mishap with the IR2161 is that you cannot adjust the frequency and...
    25 replies | 2054 view(s)
  • FunkyShadow's Avatar
    01-14-2018, 09:44 PM
    Hey everybody, I'm new here and it is my first time to design an SMPS. So, I'm Trying to make a power supply for xenon flash lamp. I was...
    0 replies | 43 view(s)
  • VRACH's Avatar
    01-14-2018, 04:36 PM
    VRACH replied to a thread IR2161 smps in Power Supplies
    Here is the forum of this author: http://forum.cxem.net/index.php?/topic/190458-%D0%B8%D0%B8%D0%BF-%D0%BD%D0%B0-ir2161/
    25 replies | 2054 view(s)
  • VRACH's Avatar
    01-14-2018, 04:22 PM
    VRACH replied to a thread IR2161 smps in Power Supplies
    I have already collected three such CMPS. They all at once to start and work well. Sorry for my english.
    25 replies | 2054 view(s)
  • VRACH's Avatar
    01-14-2018, 04:17 PM
    VRACH replied to a thread IR2161 smps in Power Supplies
    I suggest you go to this website: http://cxem.net/pitanie/5-345.php This site is Russian-speaking, but with the help of an online translator it...
    25 replies | 2054 view(s)
  • Silvio's Avatar
    01-14-2018, 09:41 AM
    Finally my amplifier under construction, here are some pics and also a pdf file of the construction of this amplifier. The amplifier can deliver 700...
    107 replies | 14694 view(s)
  • MicrosiM's Avatar
    01-01-2018, 10:46 AM
    Happy new year 2018
    107 replies | 14694 view(s)
  • Silvio's Avatar
    01-01-2018, 08:04 AM
    Happy New Year 2018 to All the members of DIY SMPS Best Regards Silvio
    107 replies | 14694 view(s)
  • Abet's Avatar
    01-01-2018, 01:52 AM
    Abet replied to a thread 1000w smps based on LUDO3232 in diysmps
    Happy Year 2018 Silvio! Best regards, Albert
    107 replies | 14694 view(s)
  • Silvio's Avatar
    12-25-2017, 08:26 AM
    Silvio replied to a thread 6KW class D in Class D
    Well the old trick of putting some solder on the trace will enhance current handling, at least that is what I have seen. There is also a video on...
    48 replies | 20568 view(s)
  • Easyamp's Avatar
    12-25-2017, 01:29 AM
    Easyamp replied to a thread 6KW class D in Class D
    I think the last pcb calculator I did was at 45 amps, 4oz copper, 7 inch in length (which could be a little long or short depending on the pcb...
    48 replies | 20568 view(s)
  • Silvio's Avatar
    12-25-2017, 12:39 AM
    Silvio replied to a thread 6KW class D in Class D
    Well one thing I would say it all adds up to how long, wide and thick is a trace to handle the given current through it. Cheers
    48 replies | 20568 view(s)
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