• Recent Forum Posts

      norazmi

      IR2153 Blows UP!

      thanks silvio long time no see bro, ir2153 ur using having regulated is bad idea, ir2153 is not design for regulated supply. i have made many ir2153 and

      norazmi Yesterday, 11:46 PM Go to last post
      norazmi

      Right SMPS for 80W+20W class D

      ir2153 will do the job for you.

      norazmi Yesterday, 11:42 PM Go to last post
      norazmi

      Compact Aux power supply for smps

      i did TNY because this chip has internal protection, overvoltage, short circuit, over temp, soft start.. etc... and its very easy and its regulated, ill

      norazmi Yesterday, 11:39 PM Go to last post
      norazmi

      IR2153 smps with short circuit protection.

      i know some having problem with high voltage at output when using ir2153 because this chip dont have softstart, but we can solved it by make softstart

      norazmi Yesterday, 11:26 PM Go to last post
      Silvio

      vacuum tube smsp

      May I ask where are you going to take the sample voltage for the regulation of the output voltage?
      I see you opted yes for regulation in Excellent

      Silvio 03-15-2019, 06:50 AM Go to last post
      Silvio

      vacuum tube smsp

      Regarding rectification well the bridge requires one winding while center tap requires two windings.

      One tip for you if you want to make

      Silvio 03-15-2019, 06:36 AM Go to last post
      eonscom

      vacuum tube smsp

      Re-upload your photo

      eonscom 03-14-2019, 02:58 PM Go to last post
      eonscom

      vacuum tube smsp

      Thank you for your quick reply.
      The above specs were first attempted and have problems.
      Currently in production
      The problem is trying

      eonscom 03-14-2019, 02:40 PM Go to last post
      Silvio

      vacuum tube smsp

      Hi Eonscom,
      One last note if you want to make adjustment just calculate that you have 7 volts per turn. 155v / 22 turns pri =7v per turn

      Silvio 03-14-2019, 01:42 PM Go to last post
      Silvio

      vacuum tube smsp

      Hi Eonscom, I have made some calculations for you. As for the core material I chose N27 which is not so high permeability as the core you are using

      Silvio 03-14-2019, 10:05 AM Go to last post
    • Group Buy 2KW Class-H Amplifier

      Quote Originally Posted by lavindoo View Post
      Mr ... how to know ir2117 work well ... I am building a class H amp volt dc step-up using ir2117 ... on the negative rail can not walk ...
      Buy the PCBs, and and the amplifier its cheaper
      This article was originally published in forum thread: Group Buy 2KW Class-H Amplifier started by meanman64 View original post
    • Recent Activity Widget

      norazmi

      IR2153 smps with short circuit protection.

      Thread Starter: norazmi

      Hello today i`m build new smps with ir2153, this schematic and pcb files are from forosdeelectronica and credits go to mniclauo. This smps was up and...

      Last Post By: norazmi Yesterday, 11:26 PM Go to last post
      eonscom

      vacuum tube smsp

      Thread Starter: eonscom

      Hi I am going to make smps to apply to vacuum tube amplifiers. So far, the sg3525 and ir2110 have been used to produce more than 450V 1A, but there...

      Last Post By: Silvio 03-15-2019, 06:50 AM Go to last post
      Silvio

      Compact Aux power supply for smps

      Thread Starter: Silvio

      Here I am presenting an auxiliary power supply meant to be fitted with a SMPS of half or full bridge. The output voltage was chosen to be 17v which...

      Last Post By: norazmi Yesterday, 11:39 PM Go to last post
      kooroshi60

      IR2153 Blows UP!

      Thread Starter: kooroshi60

      Hi. I have built this SMPS that is designed by Yamaha with exact same components except for the IGBTs. At first I have tried to use IFRP450 but...

      Last Post By: norazmi Yesterday, 11:46 PM Go to last post
      prasimix

      Open source power pre-regulator

      Thread Starter: prasimix

      I'd like to present my first SMPS project of power pre-regulator that can be used in variable/programmable bench power supply as replacement for AC...

      Last Post By: MicrosiM 03-12-2019, 09:46 AM Go to last post
      leosedf

      2.5kW RF power supply

      Thread Starter: leosedf

      Hello guys and thank you all for your great info here, i have so much to read. I wanted to ask you if you can give me any guidelines on what to...

      Last Post By: leosedf 03-08-2019, 07:19 PM Go to last post
      plasma

      Right SMPS for 80W+20W class D

      Thread Starter: plasma

      Hi, i am designing a pair of active Studio Speakers. Bi-amped, and controlled by an ADAU1701 DSP. The DSP is already working. Also both amplifier,...

      Last Post By: norazmi Yesterday, 11:42 PM Go to last post