Test the ic by removing it from the printed circuit board and installing it in a power supply that you know to be good. A switch mode power supply is a power converter that utilises switching devices such as mosfets that continuously turn on and off at high frequency. So if need to download pdf power supply repair guide by jestine yong, then you have come on to loyal website. These circuits offer distinct benefits and tradeoffs when compared to alternative methods of converting dc power. Here i would like to share another article with you that talks about how i have solved a slightly higher output voltages in an atx power supply. This power supply is already regulated as stated in the datasheet and it is regulated further down to 3. The ability to obtain powers in different forms and switch between powers and fighting technique. We will be glad if you go back to us again and again. Usually power surge related problems are easiest to repair unless there were other complications before the power surge. Its quite tricky, but can be done pretty easily with the right. Russian blonde gave herself for the power supply to the pc.
Troubleshooting repairing switch mode power supplies ebook. Electronic repair pdf switch mode power supply repair. This reference manual contains useful background information on switching power supplies for those who want to have more meaningful discussions and are not necessarily experts on power supplies. In troubleshooting and repairing switch mode power. Repairing estore electronics repair and technology news. In this ebook, you will learn all my advance troubleshooting and repairing secrets and you can become a professional in switch mode.
Use switcherpro power supply design software to create, manage and share custom power supply designs. Ac adapter, yifeng 12v2a ac dc switching power supply adapter input 100240v, output 12v 2a with dc connector gift. Jestine yong is cofounder of noahtech computer repairing and services, which has entered its 14 years operation. Small switch mode power supplies modification secrets by jestine yong.
He has vast experience in repairing computer monitors, power supplies, computer peripherals and related. Of all the circuits found in modern electronic equipment, the most common and easiest to troubleshoot is probably the switch mode power supply. This ebook is great for anyone trying to find a quick repair tip for repairing small switch mode power supplies. China switching power supply manufacturers select 2020 high quality switching power supply products in best price from certified chinese power manufacturers, china switch suppliers, wholesalers and factory on. Switchmode power supplies are a popular and sometimes necessary choice for dcdc power conversion. Guide to switch mode power supply basics maxim integrated. Please can you send me the book switch mode power supply on my email. Regardless if you are fixing and troubleshooting plasma tv, vcd, lcd tv, monitor, dvd, cctv, printer, satellite receiver, xbox, audio equipment, atx power supplies, power adapter, data projector, you absolutely must have this unique effective book to demonstrate you the way to be an expert on switch mode power supplies repair and smps troubleshooting in just 7 days. Replacing working components in switch mode power supply.
Troubleshooting and repairing atx power supply by jestine yong free download. Ive just finished putting together a home study course about switch mode power supplies. He gives a broad explanation as to how switched mode power supplies work as well as discusses some of the reasons these devices tend to. Troubleshooting and repairing switch mode supplies by jestine yong. Dont waste anymore of your precious time to search from the internet to learn the basic repair. My name is jestine yong and im a professional electronic repairer. If the supply is still inoperative, the integrated circuit may be bad. The main advantage of this added complexity is that switched mode operation gives regulated dc supplies that can deliver more power for a given size, cost and weight of power unit. However, in contrast to the old low frequency transformers. It also provides real smps examples, and identifies several application notes and. Spice simulations and practical designs, second edition, covers. How to build a switch mode power supply circuit with an.
How to repair a switching switch mode power supply. Ive just finished putting together a home study course about switch mode power supplies repair. The book has 42 pages in which large pictures take up a lot of that space. Lcd tv came in with the complaint of no power symptom. Fully recommended if you want to be a professional in modification of small switch mode power supplies repair.
Switch mode power supplies 271 pages, please visit. Ive just finished assembling a property study course about switch mode power supplies repair. Bottom line is more on the info presented that it works and not on the total pages count. In this ebook, you will learn all my advance troubleshooting and repairing secrets and you can become a professional in switch mode power supplies repair. Ac voltage enters to the primary side of linear transformer and then converted the ac into a lower or higher ac voltage depending on the secondary winding. Mode power supply reference manual should prove useful. Gagi9a6aag according to my kapersky software the above link in infected with a trojan. Go here to learn more about this downloadonly switch mode power supply repair book. Also a brief explanation about the difference between linear and switch mode power supplies.
Linear power supplies work by getting the 127 v or 220 v from the power grid and lowering it to a lower value e. Power supply brought to you by jestine yong i hope that you have enjoyed the short report of the easy way to understand switch mode power supply. Most of them are flyback, regulated, smps but not all. Of switch mode power supply troubleshooting linear power supply was quite easy as compare to switch mode power supplies smps. Switch mode power supplies repair guide smps troubleshooting. This breakthrough course will walk you through my best strategies in solving many switch mode power supplies problems. This ebook consist of 42 pages of solid information. The guy is extremely knowledgeable in matters related to electronics repair and to top it off. It is a fact that a lot of individuals who try to start repair in switch mode power supply find yourself. Secrets of smps repair and troubleshooting switch mode power supply smps repair sometimes can be easy and sometimes are quite difficult to solve the problem. The power supply fault could be an open start up resistor only or could be even more than ten components burnt due to heavy lightning strike. How to fix switched mode power supply whatswithjeff. Troubleshooting and repairing atx power supply by jestine yong.
A switchedmode power supply switchingmode power supply, switchmode power supply, switched power supply, smps, or switcher is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Electronic repair to make you a good repairer jestine yong. Users of this ability are able to obtain certain powers in different forms or modes that allow them to create new abilities and control certain powers. This new adapter immediately fixed the problem with my security camera system. Secrets of smps repair and troubleshooting switch mode. Replacing working components in switch mode power supply by jestine yong on march 23, 2020 the olan 22. Jestine besides doing electronic repair he also serves as a lecturer in conducting technical workshops such as. Using a laptop or computer power supply repair can be extremely difficult especially for novice experts. Small switch mode power supplies modification secrets a friend of mine mr. About jestine yong switch mode power supply repair. Interview with professional electronic repairers from florida usa.
Jestine yong has just launched a new ebook small switch mode power supplies modification secrets i have personally gone through the ebook and he has shared incredible secrets on how to sort out those tough dog issues found in small switch mode power supplies. Anatomy of switching power supplies hardware secrets. Switcherpro online or desktop design software allows you to design power supplies with texas instruments tps40k controllers, lowpower dcdc converters and swift tps54xxx pointofload stepdown dcdc products. You realize, this smps power source restoration manual is a important guide i use again and again. Analysis and implementation of switch mode power supplies. Switch mode power supply daves tv service and repair. Jestine yong, a professional electronic repairer has made a manual entitled switch mode power supplies repair. Smallsignal modeling feedback and ciontrol loops basic blocks and generic switched models nonisolated converters offline converters flyback converters forward converters power factor correction. Smpsswitch mode power supply repair guide testing electronic. This ebook is suitable for intermediate and advanced electronics repairers. Very often when i attempt to repair electronic devices, either mine or from friends, i find out the problem is with the power supply which these days is most often a switched mode power supply smps. Switched mode power supplies, often abbreviated to smps are considerably more complex than the linear regulated power supplies described in power supplies module 2. Smps repair guide switch mode power supply repairing tips. Repairing switched mode power supplies smps all about.
The repair of switch mode power supplies smps is economically a good investment for electronics repair shops and for hobbyists. Im jestine yong and im an expert electronic repairer. Like other power supplies, an smps transfers power from a dc or ac source often mains power to dc loads, such as a personal. A switch mode power supply is also called a switched mode power supply or a switching mode power supply. Because they are more energy efficient than traditional power supplies, its rare to find any modern day electronics that dont utilize them. Switchmode power supply troubleshooting safety the primary danger to you is from the input side of the supply which is directly connected to the ac line and will have large electrolytic capacitors with 320 v or greater dc when powered often, even if the supply does not work correctly and for some time after being unplugged especially. China switching power supply, switching power supply. We have power supply repair guide by jestine yong txt, djvu, doc, pdf, epub formats. Analysis and implementation of switch mode power supplies in mhz frequency region abdul majid supervisors. Troubleshoorting and repairing switch mode power supplies handbook by jestine. I have a spare power supply with a socket in it that i use exclusively to test integrated circuits.
I am using a switch mode power supply rac0605sc to power up the microcontroller atmega16l a wifi module rn1g and a 5v relay. As soon as the equipment operate for a long time and also the temperature produced within the gear will switch the adhesive into conductive and sometimes would even rust the pins from the factors and in the end increase the risk for tools energy restore guide to cease working. The good news is whether your small switch mode power supplies has 2, 3, 4 or even 5 outputs this method of modification still can be applied. This breakthrough course will walk you through my most useful strategies in solving many switch mode power supplies issues. In this project, we will show how to build a switch mode power supply circuit with a mc34063 chip. How to easily understand the functions of switch mode power supply troubleshooting linear power supply was quite easy as compare to switch mode power supplies smps. May you send me a link so that i may down load the ebook troubleshooting and repairing switch mode power supplies by jestine yong my email address is. Associate professor kent bertilsson professor bengt oelmann electronics design division, in the department of information technology and media mid sweden university, se851 70 sundsvall, sweden issn 16528948. Interview with professional electronic repairers from.
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