Featured Products

New Sharp LCD TV Remote Control GA470WJSA 076B0MQ010 Supplied with models LC-37SH20 LC-37SH20U LC-26SH10 LC-26SH20 LC-32SH10 LC-32SH20
$11.95
Buy It Now
New Sharp LCD TV Remote Control GA470WJSA 076B0MQ010 Supplied with models LC-37SH20 LC-37SH20U LC-26SH10 LC-26SH20 LC-32SH10 LC-32SH20 by SHARP

  • New Sharp LCD TV Remote Control GA470WJSA
  • Same as model 076B0MQ010
  • Supplied with models LC-37SH20 LC-37SH20U LC-26SH10 LC-26SH20...


Sharp LC-60N5100U 60-Inch 1080p Smart LED TV (2016 Model)
$879.99
Buy It Now
Sharp LC-60N5100U 60-Inch 1080p Smart LED TV (2016 Model) by SHARP

  • Ultra Slim
  • Smart TV with Netflix, Amazon, YouTube, VUDU, Pandora etc apps...
  • dbx-tv audio certificated, The same experience as with sound bar


Sharp LC-50N7000U 50-Inch 4K Ultra HD Smart LED TV (2016 Model)
$739.99
Buy It Now
Sharp LC-50N7000U 50-Inch 4K Ultra HD Smart LED TV (2016 Model) by SHARP

  • Smart Functionality: Yes
  • Inputs: 1 built-in tuner, 4 HDMI ports, 3 USB ports, 1 digital...
  • Dimensions (W x H x D): TV with stand: 44.4" x 27.8" x 9.2"


Sharp LC-55N7000U 55-Inch 4K Ultra HD Smart LED TV (2016 Model)
$679.99
Buy It Now
Sharp LC-55N7000U 55-Inch 4K Ultra HD Smart LED TV (2016 Model) by SHARP

  • Inputs: 1 built-in tuner, 4 HDMI ports, 3 USB ports, 1 digital...
  • Smart Functionality: Yes
  • Dimensions (W x H x D): TV with stand: 49.0" x 30.4" x 9.2"









View all 492 items...



CRT power supply

My fondness for vacuum tubes extends to cathode ray tubes (CRTs), which were ubiquitous for decades in television sets, as well as technical equipment like oscilloscopes. I like the look of them in operation, an electron beam painting glowing lines on a phosphor screen. Accordingly, I'd like to make a CRT-based art project. To do so, I need to come up with an appropriate power supply. Like other vacuum tubes, CRTs need both a heater supply and a high voltage supply. However, CRTs need higher voltage than most vacuum tubes. An ordinary small CRT generally needs a thousand volts to operate. Additionally, CRTs need several different voltages to operate their various electrodes.

The first order of business is to come up with the high voltage itself. When vacuum tubes were common, high voltage power supplies were too. These days, electronics are solid state, and run on low voltage. For a long time, 5 volts was the norm, and now voltages are getting even lower to support both devices with smaller geometry and reducing power consumption and its attendent heat generation. 3.3 volts was popular for a while, and newer devices run on 1.8 volts. In this arena, parts to produce high voltages are uncommon. As I like to share my designs, I'd prefer to use current production parts that other people can obtain fairly easily and cheaply. Happily, there is a current source for high voltage transformers. LCD screens need backlights, and one popular technology for backlights is the "cold cathode fluorescent light" (CCFL). These are long thin tubes that are light by (aha!) high voltage. Since they're so common, the associated high voltage power supplies and the parts they're built from are also common.

I found a nice design at tubetime that used a CCFL transformer in a lashup using a voltage divider to sample the high voltage, a voltage reference for comparison, an operational amplifer (op-amp) to compare them, and a power transistor to control the CCFL circuitry. I figured...

Source: Welcome to my nightmare


Latest News

  • Sharp to Explore Options for LCD Panel Business

    07/31/15 ,via Wall Street Journal

    TOKYO—Sharp Corp. said it would seek external help to prop up its LCD panel-making business and plans to quit selling televisions in the U.S. and much of the rest of North and South America, as the electronics company steps up its turnaround plan

  • Sharp exits the U.S. TV business: What you need to know

    08/03/15 ,via ConsumerReports.org

    Sharp is credited with helping to invent LCD technology—indeed, the first LCD TV I ever saw was in a Sharp panel manufacturing plant two decades ago. The company's 10th-generation plant is still considered one of the industry's most advanced, and 

  • Japan's Sharp in LCD tie-up talks with Taiwan's Hon Hai: sources

    08/23/15 ,via Yahoo News UK

    The talks come after Sharp's chief executive, Kozo Takahashi, last month said he was open to major restructuring of Sharp's liquid crystal display (LCD) and consumer electronics businesses as investors and analysts clamored for an overhaul. Earlier tie

  • Sharp shows off an 80-inch 8K TV, with a resolution of 7680x4320

    08/22/15 ,via TweakTown

    Some people have already caught a glimpse of the new Sharp 8K TV, reporting that "every hair, face pores, freckles" on an image of a woman were "clearly visible". The same woman had lipstick on, with the person saying that it was like a "real person

  • Japan's Sharp in LCD tie-up talks with Taiwan's Hon Hai

    08/24/15 ,via DunyaNews Pakistan

    The talks come after Sharp s chief executive, Kozo Takahashi, last month said he was open to major restructuring of Sharp s liquid crystal display (LCD) and consumer electronics businesses as investors and analysts clamored for an overhaul. Earlier tie


Twitter

RT @smoothblink__uk: Click here to buy >>http://t.co/kCiIyIAre2 £1.13 #Estone Genuine Sharp... Global #Smoothblink2Amazon http://t.co/oBPvvy… 08/24/15, @smoothblinkchat
RT @smoothblink__uk: Click here to buy >>http://t.co/kCiIyIAre2 £1.13 #Estone Genuine Sharp... Global #Smoothblink2Amazon http://t.co/oBPvvy… 08/24/15, @smoothblinkpark
RT @smoothblink__uk: Click here to buy>>http://t.co/kCiIyIAre2 £1.13 #Estone Genuine Sharp... Global #Smoothblink2Amazon http://t.co/oBPvvy… 08/24/15, @smoothblinkwood
RT @smoothblink__uk: Click here to buy>>http://t.co/kCiIyIAre2 £1.13 #Estone Genuine Sharp... Global #Smoothblink2Amazon http://t.co/oBPvvy… 08/24/15, @smoothblinkpace
RT @smoothblink__uk: Click here to buy>>http://t.co/kCiIyIAre2 £1.13 #Estone Genuine Sharp... Global #Smoothblink2Amazon http://t.co/oBPvvy… 08/24/15, @smoothblink_fix

Books

  • HWM

    2006. 136 pages.

    Singapore's leading tech magazine gives its readers the power to decide with its informative articles and in-depth reviews.

  • Knowledge Creation and Management: New Challenges for Managers

    Oxford University Press. 2006. ISBN: 9780199882823,0199882827. 336 pages.

    This book presents the latest management ideas in knowledge creation and management in readable and non-technical chapters. Leading experts have contributed chapters in their fields of expertise. Each distils his or her subject in a chapter that is accessible to managers who want to learn what can be applied to their organizations without the distracting details of research methodology. Each chapter, however, is based on careful research. The book is organized so that readers can easily find...

  • HWM

    2004. 96 pages.

    Singapore's leading tech magazine gives its readers the power to decide with its informative articles and in-depth reviews.


  • Sharp shows off an 80-inch 8K TV, with a resolution of 7680x4320

    08/22/15 ,via TweakTown

    Now that 4K is much more established than it was a few years ago, 8K is now appearing about the place with Sharp displaying the first retail 8K TV on a massive 80-inch 8K TV. Sharp's new LCD-80XU35A is a massive 80-inch 8K TV, with a native resolution of ...

  • Japan's Sharp in talks with Hon Hai on tie-up: Asahi

    08/22/15 ,via Yahoo News

    or selling Sharp's stake in their joint-venture TV panel plant in Sakai, Japan, the report said, citing unnamed sources. But Sharp was also seen as considering a Japan government-backed fund for support, and the situation was fluid, it added. Asked about ...

  • Sharp Not Leaving Commercial TV Business

    08/14/15 ,via CE PRO

    Sharp has indeed agreed to a $23.7 million licensing deal with Chinese TV maker Hisense that will see Hisense take over production of Sharp’s consumer TV line starting in January, but Sharp officials are stressing “it’s business as usual for us ...

  • Japan's Sharp Reportedly in Talks With Foxconn on Tie-Up

    08/22/15 ,via NDTV

    or selling Sharp's stake in their joint-venture TV panel plant in Sakai, Japan, the report said, citing unnamed sources. But Sharp was also seen as considering a Japan government-backed fund for support, and the situation was fluid, it added. Asked about ...

  • Kymeta partners with Sharp to build satellite internet antennas with TV screen tech

    08/18/15 ,via Geek Wire

    Antenna prototype being tested in one of Kymeta’s anechoic chambers. Photo via Kymeta. The future of satellite internet may rely on tech already found in your TV screen. LCD manufacturers are providing solutions for tracking fast-moving satellites to ...



Sharp LCD Television – Why Buy LCD?

Sharp LCD Television – Why Buy LCD?
Image by www.googledctalks.com


Sharp LCD COLOR TELEVISION OPERATION MANUAL LC-10A3U

Sharp LCD COLOR TELEVISION OPERATION MANUAL LC-10A3U
Image by tv.manualsonline.com


sharp aquos LC46DH77E 46 inch LCD television

sharp aquos LC46DH77E 46 inch LCD television
Image by www.gadgetspeak.com




Directory

LCD TV - LCD Television - Aquos LED - Sharp

AQUOS. Эта страница требует последнюю версию плагина Flash player. Если Вы не имеете самой ...

Sharp USA - Official Site

Manufacturer of a wide range of consumer and business products, from appliances, audio and video equipment, calculators and organizers, computers, printers and copiers.

Smart TVs from SharpUSA: LED Flat Screen Smart TVs with ...

Check out Sharp's collection of LED flat screen TVs today. Only Sharp uses Quattron™ technology for more color and a better picture.

LED TV - Sharp

Sharp. About Sharp. Corporate Profile. Business Philosophy; ... Intelligent Television; THX Certification; Investor Relations; Download Center; Legal; Sharp for ...

Sharp Corporation - Official Site

Sharp Corporation official global website. Introducing Sharp corporate information, product information, support information etc







  • Sharp LCD Television Problems