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. Most modern supplies use switching supplies but for someone to learn about power supply basics start with linear supplies. Jun, 2001 power supply cookbook, second edition provides an easytofollow, stepbystep design framework for a wide variety of power supplies. An area gaining significant industry attention today is the application of digital technology to power supply control. Nothing in my documentation even tells me the voltage required. Power supply protection circuits over voltage protection the power supply pcb has an over voltage protection circuit as well as a regulator circuit. It includes electrical noise reduction, heat reduction and over voltage.
Western digital wd my book external hard drive 12v 2a power supply adapter psu. It changes in most cases reduces the level of supply to a value suitable for driving the load circuit. Chopping means that the dc voltage is switched periodically at a frequency of 40 to 200 khz using a power transistor. Western digital elements genuine adapter 1tb2tb3tb4tb6tb wd power supply.
It says the adapter that ships with the device is a 12v, 1. Understanding power supplies and simple circuits universalclass. Dc adapter for wd mybook wdg1nc5000n external hdd power supply cord psu. Unable to connect wd external hd my book essential model. Wd western digital 160 320 500 750gb 1tb my book essential.
However the current is limited by the power supply with the least capacity, so you could expect only 100ma. The following table shows the over voltage specifications. I called the western digital support line and they told me it is. I can use a wd external power supply on a variety of my wd drives my cloud. I have a my book essential that i lost the power supply. Philips norelco shaver 15v series ac adapter charger power supply cord wire lelien genuine original le9215b206 ac adapter charger va 20v2a or vb 25v1. Myvolts 12v power supply adaptor compatible with western digital.
This 12v highquality power adaptor serves as a replacement psu for the western digital my book essentials external hard drive. Western digital velociraptor wd6000hlhx 600gb 0 rpm sata 6. On three i got the 44 volt reading and on one i got 57 volts. Analog power supply design workshop biricha digital power ltd. Just unpacked from an intercity move and cannot find identify which of many bricks is that used for the 1tb my boo live. The mybook studio edition comes with quad interface. They are bigger and heavier but are important to learn about and are in almost all equipment because of their simplicity. Western digital inand memory has become an important part of automated driver systems with local storage to fit the demanding data needs of the vehicle. What would happen if id use a 12 volts power supply on a. This results in a much lower power being dissipated within the supply. It was originally signed up as drive e and now it comes up as.
The best power supply related trainingseminar ive ever participated by far the workshop touches very important topics in analog power supply design world. For wd my book essential wdbacw0020hbk00 2611d western digital 2tb usb 3. Introducing the buildingblock approach to power supply design 8 1. So here you go, the steps required to disassemble a newstyle western digital my book drive enclosure. Short circuit, over current protection, over voltage protection, over. 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. Product title pwron ac power adapter fr western digital wd my book. What would happen if id use a 12 volts power supply on a 10. My wd my book essentialbook is not getting power i accidentally knocked this sucker off my desktop and the power adapter caught the weight. Case for western digital wd my passport essential elite. Its certainly not been a great week for hardware for me. Products purchased from third party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements. I found out that even though the plug fit my hard drive, the voltage of them werent.
The power supply pcb has an over voltage protection circuit as well as a regulator circuit. Western digital caviar green 3tb and my book essential 3tb. However the donor did not include the power supply adapter for the drive. To meet these needs, western digital offers the my book essential series of. Wd my book essential edition wdbaaf0010hbk package include. With this book, anyone with a basic knowledge of electronics can create a very complicated power supply design in less than one day. Hqrp ac adapter for western digital wd my book wdbfjk0020hbk wdbfjk0030hbk. Replacement power supply ac adapter for wd my book essential wdbacw0020hbk00 2611d wdbacw0020hbknesn hard drive. At the bottom of the unit where the warning notes are, there is a. While i would always recommend that you use the manufacturer specified voltage, my guess is that the unit could handle the extra. My book live power supply external drives for pc wd community. Dec 18, 2007 my sister inherited a used panasonic toughbook with an external cd drive. Our datacentric solutions are comprised of the western digital, gtechnology, sandisk, upthere and wd brands. Bensn ac to dc 12v western digital wd toshiba seagate power adapter cord cable for external hard drive, my book studio essential elements freeagent goflex freeagent pushbutton and more 4.
Great handson workshop with a good mix of theory and lab sessions. This power supply is compatible with the following my book. Western digital my book essentials external hard drive 12v. Western digital elements external hard drive power supply. I do not know the correct voltage or amps so i can order the correct replacement the first time. To get started, choose the western digital brand youd like help with. Power supply ac adapter for wd my book essentials western digital 1 2 3 tb 12v. Analog power supply design workshop biricha biricha. I would recommend the workshop to any power supply design engineer or researcher. Oct 19, 2010 western digital velociraptor wd6000hlhx 600gb 0 rpm sata 6.
Wdbacw0010hbk i have recently bought an external hard drive from western digital. Wd my book essentials 1tb 12v replacement power supply. Power supply cookbook, second edition provides an easytofollow, stepbystep design framework for a wide variety of power supplies. The average switching power supply exhibits efficiencies of between 70. Figure 5 primary switch mode power supply in primary switch mode power supplies, the ac mains voltage is first rectified and smoothed and then chopped switched. Application manual power supply units applications for power. I need a 230vac to 24vdc, 4a power supply to power an amplifier and the best value switching power supplies ive seen have been sold on led lighting websites as led driver power supplies. My book essential power adapter lost external drives for pc wd. For those who might not be up to date on the latest connection standards, usb 3. Where can i learn switched mode power supply design. I have a candidate for the joblabelled li shin international enterprise corp ac adapter 12v output 4. Western digital external hard drive my book essential 500gb. I am embarassed to admit that i have lost my power supply brick.
Companies are gathering as much data as possible to help the. Western digital my book essential 2tb external usb hard drive. An electric power supply is a device or system that converts some form of energy into electrical energy. The first is that its not registering under the drive i initially assigned it. This western digital my book essential 500gb power supply meets all safety regulations. Ugreen dc power supply 12v 2a, ac 100240v to dc 12v power cable transformer wall charger replacement uk plug with 1. Lost power supply to wd my book essential 1tb external hd. Wds 18watt adapter is a 12volt power supply with a capacity of 1.
The automotive industry is undergoing significant transformation with electrification and the development of autonomous vehicles. A practical introduction to digital power supply control laszlo balogh. My book live power supply external drives for pc wd. Recognized worldwide as the definitive guide to power supply design for over 25 years, switching power supply design has been publishers note. Wd western digital 1tb my book hdd 2a ac adapter charger. Audio amplifiers are a bit problematic here, because they are often sensitive to noise on the power supply lines.
Ac adapter charger for brother ptouch pt1880 printer power supply cord ac adapter charger power supply cord for fits asus pa165066 laptop ac adapter charger for asus g74sxrh71cb 17. 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. My sister inherited a used panasonic toughbook with an external cd drive. 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. Ablegrid 12v ac dc adapter for wd my book essential. Electronics are usually designed plus or minus 10%, however this example is 20% above the voltage that is specified. 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. Why do western digital hard drive power supplies leak so. The power consumption numbers are not surprising the acpowered my book 8tb consumes between 8w and 10w at the wall for different access traces, while the buspowered my passport 4tb consumes. 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. 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.
Hi, i seem to have mislaid the power supply brick for my external hard drive, which is a western digital mybook essential 250gb. Western digital offers an expansive portfolio of technologies, storage devices, systems and solutions for businesses and consumers alike. The wd website just says 24w, which doesnt really help. The kicker here is that there is no brand name on the drive. Application manual power supply units applications for. Digital power supply control attempts to move the barrier between the analog and digital sections of the power supply right to the pins of the control ic. Ac adapter charger power supply for wd my book essential. It is designed so that when an over voltage condition occurs in any part of the power supply it does.
In my experience, it helps if you at first work with cheap components that youll be able to burn repeatedly, like cheap leds. I have a wd external hd my book essential model number. Buy hqrp ac adapter for western digital wd my book wdbfjk0020hbk. 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. Software and devices that carry the works with windows vista logo have been tested for baseline compatibility with pcs running. Jan 24, 2017 most modern supplies use switching supplies but for someone to learn about power supply basics start with linear supplies. I measured this on four different power supplies, all ones that came with western digital hard drives of various sizes. Us 12v power supply adaptor this is a fixed voltage 12v power supply adaptor.
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. Does anyone know what voltage and current this drive requires. I have an old my book essential and i lost the power adapter. The replacement power adapter model number is wdps034rnn 24 watts. Wd my book essential wdbacw0030hbk package include. Power supply for wd my book 500gb 640gb 1tb 2tb external. I looked on the back at the power supply port and all it say is dc in. Otoh, connecting two power supplies of different voltages in parallel is an extremely bad idea. 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. Durabrand pdv709 pdb702 portable dvd car adapter charger power supply cord sadelco meter 1500 2000 3000 5000 800cli display max ac adapter charger power supply cord wire our price.
Troubleshooting a variable power supply lm317 no ref voltage. This adaptor features overvoltage, overcurrent and short circuit protection to protect your device from damage. Western digital my book authentic adapter 1tb2tb3tb4tb6tb. Western digital my book opening the case removing the. Ac adapter charger switching power supply cord plug wd western digital external hard drive hdd my book essential. Thermal aspects and power consumption western digital my. Troubleshooting on chinese 030 voltage dc power supply board. New 12v ac power adapter for wd hdd, mybook premium. Over voltage protection, over heat protection please dont confuse us with the low quality low current ones in the market. Wd my book essential wdbaaf0015hbk ac adapter charger power. With the common industry design approaches presented in each section, this unique book allows the reader to design.
She wishes to replace it and need my advice on the volatage that it uses. Which are some good books about linear power supply design. Product title ablegrid ac dc adapter for wd my book essential 3t. Find low everyday prices and buy online for delivery or instore pickup. My wd my book essentialbook is not getting power western. Power supplies can typically be divided into two categories. 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. Ac adapter charger wd western digital 160 320 500 750 my book. I should be ok as long as i select the correct output voltage and sufficient current output rating for my application, right.