Go Back   Home > Forums > >

basic smps(half bridge)by foodland
basic smps(half bridge)by foodland
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools
Old 14th June 2021, 08:23 PM   #1
surachit is offline surachit  Thailand
diyAudio Member
 
Join Date: Sep 2012
Location: bangkok thailand
Default basic smps(half bridge)by foodland

basic smps It's a simple circuit suitable for beginners
The circuit consists of 1. 12v regurator for osc 55k circuit 2. b+310vdc
3. mutivibrator 55khz and gate dri trnsformer circuit
4. half bridge dri circuit
Attached Images
File Type: jpg IMG_20210614_022856.jpg (614.8 KB, 116 views)
File Type: jpg IMG_20210614_022652.jpg (625.4 KB, 115 views)
File Type: jpg IMG_20210614_022704.jpg (350.7 KB, 115 views)
File Type: jpg IMG_20210614_022713.jpg (331.6 KB, 115 views)
File Type: jpg IMG_20210612_184350.jpg (566.4 KB, 110 views)
File Type: jpg IMG_20210615_020737.jpg (631.8 KB, 24 views)
File Type: png gd1.png (495.7 KB, 24 views)
File Type: jpg IMG_20210612_190335.jpg (724.1 KB, 32 views)
File Type: jpg 1623657910775.jpg (247.6 KB, 28 views)
File Type: jpg 1623657886532 (1).jpg (153.7 KB, 25 views)
  Reply With Quote
Old 14th June 2021, 08:32 PM   #2
surachit is offline surachit  Thailand
diyAudio Member
 
Join Date: Sep 2012
Location: bangkok thailand
mosfet irf740 the tranformer for test from atx tranformer

vdo
basic smps (?half-bridge)by foodland - YouTube
Attached Images
File Type: jpg IMG_20210612_184350.jpg (566.4 KB, 21 views)
File Type: jpg basic1.jpg (600.5 KB, 24 views)
File Type: jpg IMG_20210614_022848.jpg (566.2 KB, 25 views)
File Type: jpg IMG_20210614_022914.jpg (591.9 KB, 22 views)
File Type: jpg IMG_20210614_025737.jpg (644.8 KB, 20 views)
File Type: jpg IMG_20210615_020047.jpg (817.0 KB, 22 views)
  Reply With Quote
Old 14th June 2021, 10:14 PM   #3
NickKUK is offline NickKUK  United Kingdom
diyAudio Member
 
Join Date: Dec 2019
There doesn’t look To be any over volt or under volt protection, also no isolated feedback or primary side sensing?
  Reply With Quote
Old 14th June 2021, 10:17 PM   #4
bucks bunny is offline bucks bunny  Germany
diyAudio Member
 
Join Date: Jan 2020
Is there any protection at all?
btw, this violates forum rule no 3:
Intentionally posting incorrect or flagrantly dangerous information (Note 2).

Last edited by bucks bunny; 14th June 2021 at 10:20 PM.
  Reply With Quote
Old 15th June 2021, 05:14 PM   #5
surachit is offline surachit  Thailand
diyAudio Member
 
Join Date: Sep 2012
Location: bangkok thailand
วงจรใช้งานได้จริงครับ The circuit actually works.
vdo basc smps ???2 - YouTube
Attached Images
File Type: png diy1.png (213.3 KB, 31 views)
File Type: jpg 122a.jpg (71.7 KB, 31 views)

Last edited by surachit; 15th June 2021 at 05:17 PM.
  Reply With Quote
Old 15th June 2021, 05:34 PM   #6
bucks bunny is offline bucks bunny  Germany
diyAudio Member
 
Join Date: Jan 2020
What a mess It is time to clean up your workbench
  Reply With Quote
Old 17th June 2021, 09:52 AM   #7
NareshBrd is offline NareshBrd  India
diyAudio Member
 
Join Date: Oct 2017
Location: Baroda, Gujarat, India
Old salvage SMPS working goes for $2, new is 8 onwards.
PC-AT, 450 watts, TL494 or KA 7500 ics, 339 comparators. 3753 or 13007 main transistors.

Sometimes other Chinese chips.

This is too much hassle to build, particularly coils.
  Reply to this post

Reply


basic smps(half bridge)by foodlandHide this!Advertise here!
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
OTL100W by foodland surachit Solid State 7 15th November 2020 10:50 AM
self osc smps single tranformer by foodland surachit Power Supplies 0 4th June 2020 06:56 PM
Full Bridge SMPS is cheaper than Half-Bridge? eem2am Power Supplies 18 28th April 2012 03:32 PM
Half bridge Vs full bridge smps supplies jaiaditya4u Power Supplies 5 27th July 2011 05:12 AM
Whats the difference between full bridge and half-bridge SMPS ? skaara Class D 6 3rd February 2005 07:23 PM


New To Site? Need Help?

All times are GMT. The time now is 11:39 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki