Recent content by LiveRock

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    High Voltage DC Power Supply (0-900 VDC)

    I did a search and encap transformers look like: http://www.dagnall.co.uk/frame.asp?src=products.asp
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    High Voltage DC Power Supply (0-900 VDC)

    Thanks, Zombie. Actually, I need the 800-900 VDC to charge capacitor, the energy will be release to a flashlamp in a instant that will lase a YAG Laser. Using a flyback transformer will yield too much voltage, right? how does a PCB encapsulated transformer look like? Is it a 'normal' squarish...
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    Rack mount, 3 x HD44780 LCD Panel to Monitor 3 Computers

    Hi Here is a short guide on building a rack-mount, 3 LCD Panel to monitor up to 3 computers. When you turn off the computer monitor, you can use this to check its CPU load, hard disk space, temperature, etc. Great if you are doing a CPU intensive job on the computer that takes hours to...
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    Hard Disk Status LEDs from the Adaptec 2610SA SATA RAID Controller

    Hi It is possible to wire up the Hard Disk Status LEDs from the Adaptec 2610SA SATA RAID Controller. This controller has 6 ports and can connect up to 6 Hard Disks. Here is a simple guide: http://www.hotsource.net/projects/main.php?cmd=album&var1=NAS/&var2=1 Background: I want to...
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    High Voltage DC Power Supply (0-900 VDC)

    I found http://www.electronics-lab.com/forum/index.php?topic=6517.0 Got questions: (a) How do I vary the output from 0-900V? (b) Will  the transformer 'die' if the secondary is open? © Assuming I am using a input voltage of 0-12 V, what will be the transformer rating? Say, primary 12V...
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    Anatomy of a flyback transformer

    Hi New Projects I have done lately: Building a rack-mount, 3 LCDs Panel to monitor my computers: http://www.hotsource.net/projects/main.php?cmd=album&var1=LCD/&var2=1 Hacking the Hard Disk Status LEDs from Adaptec 2610SA SATA RAID Card and Building a Display Panel for a 1U Server...
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    High Voltage DC Power Supply (0-900 VDC)

    Hi I need to build a simple High voltage DC Power supply for my laser. Specs: Input: either 9-12 VDC or 240 VAC Output: 0-900VDC Possible solutions include using flyback, etc. Any ideas? My Projects: http://www.hotsource.net/projects/main.php?cmd=album&var2=1
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    Sony Car Stereo CDX-GT460US so sensitive to cell phone that it switch itself off

    My friend installed a brand new Sony Car Stereo complete with CD changer in his Toyota car. We discovered that when he placed his mobile phone on top of the Sony, and when there is a call coming in, the Sony just switches off by itself. This only happen when it is playing CD; it is fine with...
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    high voltage probe (0-30kv)

    and this: http://www.repairfaq.org/sam/hvprobe.htm
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    high voltage probe (0-30kv)

    if you are thinking of measuring high voltage, you can check below: http://dawntreader.net/hvgroup/divider.html
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    Anatomy of a flyback transformer

    If I feed the outputs of the flyback transformer to a voltage multiplier made out of capacitors and diodes, will it work? I still need to get 30-35 KV to fire my nitrogen laser. I have no idea what voltage is generated by the flyback but I think it is still not enough to fire my nitrogen laser...
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    Anatomy of a flyback transformer

    It works!! Hooking the flyback directly to a make-shift jacob's ladder using some copper wire used for decorations, I am able to get purple coloured arcs with hissing sounds... It is drawing about 1 amp when the voltage is 15 VDC. The reason it didn't t work was that my previous supply was...
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    Anatomy of a flyback transformer

    Hi I have wired the PCB, Flyback all together, soldered all the components but it doesn't work:=( I am able to see an AC at the primary o/p of the PCB around 7-8 V a.c. (actually pulsed DC) but I can't seem to get anything from the flyback HV output. The MOSFET IRFP460 doesn't even get warm...
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    Anatomy of a flyback transformer

    HI tdwister Thanks for the advise. I have come across zillions of warnings about high voltage stuff and I know it is lethal and mistakes can be fatal. Thanks again for the reminder... I am threading carefully because there are still a lot of unknowns.. For example, (a) The HV output from the...
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    Anatomy of a flyback transformer

    Hi tdwister Thanks! I shall use the following values R1=33K, R2=22K, 5K POT and 0.001 uf and IRF460. I will also use 12V too, I just need 25KV. BTW, how do you measure 15KV!! Thank you very much.
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