Great handson workshop with a good mix of theory and lab sessions. It is intended to guide the reader through the confusing array of choices available in designing a modern switching power supply. All these power supplies have one thing in common they take high voltage 120v or 220v ac power and regulate or convert it down to say 12v or 5v dc. Compact power supply a two page color data sheet describing powermod solidstate power supplies designed for high efficiencies and small footprints. Below is a list of publications relating to dtis power supply technology. Myvolts 12v power supply adaptor compatible with western.
Pn s018bu1200150 da24b12 ads24p122 1224g wa18g12u wa24c12u apd 12v 1. To meet these needs, western digital offers the my book essential series of external hard drives. Generally, for army basewide distribution changeouts, the preferred conus voltage is. High voltage power supplies a two page color data sheet describing powermod solidstate power supplies. This 12v highquality power supply adapter serves as a replacement psu for the western digital wd5000h1u00 external hard drive. Whatever voltage i measured at the power supply found its way to the usb plug shell once the power supply was connected to the hard drive.
Wd my book essential wdbaaf0015hbk ac adapter charger power. Our datacentric solutions are comprised of the western digital, gtechnology, sandisk, upthere and wd brands. Otoh, connecting two power supplies of different voltages in parallel is an extremely bad idea. My wd my book essentialbook is not getting power western. The power supply needs to supply 12 volts power supply as in 120 volt ac to 12 volt dc.
Western digital netzteil 12v 1,5a 18w fur wd my book, my cloud. The replacement power adapter model number is wdps034rnn 24 watts. She wishes to replace it and need my advice on the volatage that it uses. Lost power supply to wd my book essential 1tb external hd. To get started, choose the western digital brand youd like help with. The connection to the back of my hard drive is sensitive and can get pulled out easily if the hard drive is moved without care, but i dont know if thats any fault of the power supply. Wd has 2 different power adapter designs for my book series with the same specs. Introducing the buildingblock approach to power supply design 8 1. It was bent a little so i hastily began tryin to pry the case off with hopes of putting the hd in my desktop to recover the info. Wd my book essentials 1tb 12v replacement power supply. I had previously thought that both by old wd external drives had died after not being able to power them on properly however it turns out that an incorrect power supply even if the plug fits may. The wd website just says 24w, which doesnt really help.
Also, what is a 2a dc power supply sufficient or does the device require more power. Worse, as he also notes, if the psu ever went highoutput you could have a grand yall come peripherals barbecue. Power supply protection circuits over voltage protection the power supply pcb has an over voltage protection circuit as well as a regulator circuit. When extending existing distribution systems, the preferred distribution voltage is the same as the. Im using it with a western digital my studio book hard drive. Western digital netzteil 12v 1,5a 18w fur wd my book. Analog power supply design workshop biricha biricha. It is designed so that when an over voltage condition occurs in any part of the power supply it does not affect another output stage. This is a massive power supply thats in a pc, usually you dont see this unless you open up the pc and look inside for the big metal box.
Nothing in my documentation even tells me the voltage required. Purchase digital power electronics and applications 1st edition. I have to throw in a disclaimer that we are not endorsing any hard disk over another. I need a power supply to use for a project im building. However the current is limited by the power supply with the least capacity, so you could expect only 100ma. Using a tutorial, howto approach, pressman covers every aspect of this new technology, including circuit and transformer design, using higher switching. Jul 08, 2008 i need a power supply to use for a project im building. Unfortunately, this wasnt an obvious process and this excellent article by scott cramer didnt apply to the newer version 1 tb drive enclosure i have. Straughen a classic and an old book on power electronics. See more ideas about switched mode power supply, case histories and this or that questions. Using this book as a guide, pressman promises, even a novice can immediately design a complete switching power supply circuit. I called the western digital support line and they told me it is. Western digital my book power adapter best price in canada.
My wife and i recently lost the power cord to our external hd which houses all photos of our children from when they were born and the first 23 years of their lives. For wd my book 1tb drive wdbaaf0010hbk01 hard drive power supply psu ac adapter. The adaptor features overvoltage, overcurrent and short circuit protection to protect it from damage. Wd western digital 1tb my book hdd 2a ac adapter charger.
Western digital provides data storage solutions, including systems, hdd, flash ssd, memory and personal data solutions to help customers capture and preserve their most valued data. Which are some good books about linear power supply design. I checked its output with a voltmeter and its reading 20 volts almost perfectly. Not because they fail but because i misplace them over time. Western digital wdh1cs5000n my book home edition hard drive, 500 gb capacity, 16 mb buffer size, 1 x hispeed usb miniusb type b, 2 x ieee 94 firewire 6 pin firewire and 1 x esata300 7 pin external serial ata interfaces, power adapter power device, ac 120230 50 60 hz voltage required, microsoft windows 2000, microsoft windows xp, microsoft windows vista, apple macos x 10. Iberls 12v plug adapter replacement western digital wd external hard drive hdd power supply cord for my book av dvr expander, live personal cloud, studio, essential elements 1tb6tb, tv media player. This power supply is compatible with the following my book. Does anyone know what voltage and current this drive requires. Power supply for wd my book 500gb 640gb 1tb 2tb external. Does it make sense to power multiple 12v devices from one.
The best power supply related trainingseminar ive ever participated by far the workshop touches very important topics in analog power supply design world. Using a tutorial, howto approach, pressman covers every aspect of this new technology, including circuit and transformer design, using higher switching frequencies, new topologies. Most modern supplies use switching supplies but for someone to learn about power supply basics start with linear supplies. Jan 27, 2008 a replacement or additional power supply for my book external hard drives is available from western digital at replacement power supply for my book wdps034rnn. My wd my book essential ac adapter got tossed in a drawer with like 30 other ac adapters. Can someone point me in the right direction so i can order a new cord. It says the adapter that ships with the device is a 12v, 1. Jan 06, 2017 hi, the link doesnt answer the question.
Western digital my book opening the case removing the. They are bigger and heavier but are important to learn about and are in almost all equipment because of their simplicity. New 12v ac power adapter for wd hdd, mybook premium. Western digital my book authentic adapter 1tb2tb3tb4tb6tb.
I measured this on four different power supplies, all ones that came with western digital hard drives of various sizes. Western digital mybook power supply if this is your first visit, be sure to check out the faq by clicking the link above. This 12v highquality power adaptor serves as a replacement psu for the western digital my book essential 2tb external hard drive. I do not know the correct voltage or amps so i can order the correct replacement the first time. Plug it in pc first, wait few seconds, then plug it in wall. Sony dvpfx730 dvpfx921 portable dvd car adapter charger power supply cord yhi ys1019aj536gp ac adapter charger 5v 3. My wd my book essentialbook is not getting power i accidentally knocked this sucker off my desktop and the power adapter caught the weight. Thank you for thinking of including the ac adapter in. You could have subhubs but then risk voltage drop due to extra cabling voltage drop is higher at low voltage for the same power. This is the first in the series of a closer look at western digital.
Before buying any new parts or paying for repairs, try this. Replacement power supply for 12v western digital my book live. Power electronics i about the tutorial power electronics refers to an interdisciplinary subject within electrical engineering that deals with the design, control and conversion of power in its electric form. Western digital offers an expansive portfolio of technologies, storage devices, systems and solutions for businesses and consumers alike. I am embarassed to admit that i have lost my power supply brick. Western digital wd my book 4tb wdbfjk0040hbk ac power adapter.
Every now and then we are going to profile products from the major hard drive manufacturers. Western digital my book wd5000h1u00 hdd uk power supply adapter 12v transformer. Digital power electronics and applications 1st edition. Analog power supply design workshop biricha digital power ltd. Western digital my book opening the case removing the drive i recently needed to removed the drive from a western digital my book external usbesata drive enclosure. Jan 24, 2017 most modern supplies use switching supplies but for someone to learn about power supply basics start with linear supplies. Details about western digital wd my book 4tb wdbfjk0040hbk ac power adapter wa24e12. May 11, 2008 before buying any new parts or paying for repairs, try this. This book highlights the main control issues encountered in dcdc converters. I jokingly thought to myself well, if the 12 volt reads 20 volts, then a 9 volt should read 12 volts right.
On three i got the 44 volt reading and on one i got 57 volts. Ive lost my power adapter for my 8tb mybook pn wdbfjk0080hbkna. The following table shows the over voltage specifications. Basically youd have to figure out the internal sata channel, detach it from the usb converter, wire it to a sata connector, and add a power connection to the drive. The average switching power supply exhibits efficiencies of between 70 to 90 percent, regardless of the input voltage. Electrical power supply and distribution book generally, for army basewide distribution changeouts, the preferred conus voltage is. Myvolts 12v power supply adaptor compatible with western digital. I have a my book essential that i lost the power supply. For those who might not be up to date on the latest connection standards, usb 3. Dec 18, 2007 my sister inherited a used panasonic toughbook with an external cd drive. Western digital my book essential 2tb external usb hard drive. No other book has such complete instruction in one volume. In either case, however, it is the end use conditions that apply and it is the end use standards that must be considered with respect to. Ptf6483 designed to operate with ptm6482 power supply, meeting the emissions requirements of milstd461e ptf6959 designed to supplement the input filter already fitted within the ptm6688 and ptm6559 series high voltage power supplies meeting the emissions requirements of milstd461e uk.
Amazons choice recommends highly rated, wellpriced products available to ship immediately. Just unpacked from an intercity move and cannot find identify which of many bricks is that used for the 1tb my boo live. I can plug the power adapter for that into the older mybook. My book live power supply external drives for pc wd community. The following are some of the best books on power electronics. My sister inherited a used panasonic toughbook with an external cd drive. When i came home from vacation, my wd my book would not power on. Western digital my book external hard drive wont turn on. Western digital wdh1cs5000n my book home edition hard drive. The back of the mybook shows 12v dc input but thats all. I have some other external hdds from other companies.
Wd my book essential wdbaaf0015hbk ac adapter charger. Jan 16, 2012 whatever voltage i measured at the power supply found its way to the usb plug shell once the power supply was connected to the hard drive. Product title upbright new global 12v ac dc adapter for wd my book essential wdbacw0020hbk00 2611d western digital 2tb usb 3. Replacement power supply ac adapter for wd my book essential wdbacw0020hbk00 2611d wdbacw0020hbknesn hard drive. However the donor did not include the power supply adapter for the drive. At the bottom of the unit where the warning notes are, there is a.
What is the correct polarity to use for the adapter i. As plasmahh says adding single point failure mode is undesirable. I have a candidate for the joblabelled li shin international enterprise corp ac adapter 12v output 4. Western digital wdh1cs5000n my book home edition hard drive, 500 gb capacity, 16 mb buffer size, 1 x hispeed usb miniusb type b, 2 x ieee 94 firewire 6 pin firewire and 1 x esata300 7 pin external serial ata interfaces, power adapter power device, ac 120230 50 60 hz voltage required, microsoft windows 2000, microsoft windows xp, microsoft windows vista. Wd western digital 1tb my book hdd 2a ac adapter charger power supply cord wire wd western digital 1tb my book hdd 2a ac adapter charger power supply cord wire. This is the 2nd time that ive had to order another power supply for my old my book hdd. This is important because the electronics inside of a. Hi, i seem to have mislaid the power supply brick for my external hard drive, which is a western digital mybook essential 250gb. Ac adapter for wd my book essential wdbacw0030hbk charger power supply cord psu. I looked on the back at the power supply port and all it say is dc in. Mar 12, 20 uncover battletested switch mode power supply repair strategies by downloading this allinclusive smps troubleshooting manual thats stuffed with color photos. A system that converts electric energy to an electric load through a control circuit is known as a power electronic system. This adaptor features overvoltage, overcurrent and short circuit protection to protect your device from damage.
I would recommend the workshop to any power supply design engineer or researcher. This results in a much lower power being dissipated within the supply. The kicker here is that there is no brand name on the drive. Myvolts 12v dc power cable compatible with western digital my book essentials. Data storage free delivery possible on eligible purchases. My book live power supply external drives for pc wd. The adaptor features overvoltage, overcurrent and short circuit protection to protect it.
Power supplies can typically be divided into two categories. Western digital wd my book 4tb wdbfjk0040hbk ac power. Power supply voltage for external cd drive tech support guy. I jokingly thought to myself well, if the 12 volt reads 20 volts, then a 9 volt should read 12 volts. Why do western digital hard drive power supplies leak so. A replacement or additional power supply for my book external hard drives is available from western digital at replacement power supply for my book wdps034rnn. New 12v ac power adapter for wd hdd, mybook premium, wd1600b014rnu, wd2500d032000, my book wdg1nc5000n, my book pro wd5000e032, wd1200b014rnu, my book pro wd5000c032, wd2500b015rnn. Western digital wdh1cs5000n my book home edition hard. Power supply for wd my book 500gb 640gb 1tb 2tb external hdd.
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