Search results

Search Forums New Posts
  1. mixos1

    Led display Digital Voltmeter question

    I use this digital voltmeter with this 3-30V power supply: http://www.electronics-lab.com/projects/power/032/index.html If you configure it at 200V range (R3 = 12K) then it will measure from 0-30V with one decimal point precision. for 4,1V will display: X04.1 for 10,1V will display: X10.1...
  2. mixos1

    varible voltage, current limiting, power supply

    This power supply is exactly what i was thinking about. But it's difficult for me to desing it also :-\. Let's wait a more experienced user to drive us to the right direction! Meantime, i suggest you to read: 0-30 Vdc Stabilized Power Supply With Current Control 0.002-3 A...
  3. mixos1

    LED Flashlight

    That's a good idea converting a bulb flash light to a led one. It will become a power saving device with the same efficiency. If you visit: http://ledmuseum.home.att.net/ you will find many interesting led flashlight projects. Also check...
  4. mixos1

    Transistor tester

    You can check if 555 is ok by measuring the output pin 3. It must has a 12Hz signal. To do that you must have access to an oscilloscope or a digital multimeter that measures frequency. Alternativally you can replace 555 to be sure it's ok. Keep in mind that the most common problems are at the...
  5. mixos1

    Making PCBs with magazine's paper

    Dear billy I am glad to hear that this method works for you. I haven't tryed it yet myself. It would be nice if you scan your pcb and attach it to the forum, so we can see the quality of the result. I suggest you to use 300-350dpi resolution. If the pcb is big send as just a part of the pcb...
  6. mixos1

    STi5518 Datasheet

    I found some additional info about STi5518: Overview The STi5518 is a highly integrated single-chip decoder, designed for use in feature-rich mass-market set-top boxes. It integrates a high performance 32-bit CPU, a dedicated block for DVB/DirectTV transport demultiplexing and descrambling...
  7. mixos1

    Transistor tester

    I can't know what's is wrong. I suggest you to test the connections very-very carefully.
  8. mixos1

    Transistor tester

    IC2 is correct but IC1 is: 8765 1234 You measure pins as the folowing image indicates. Also you can search the net for datasheet of the IC you are using.
  9. mixos1

    X-mas

    MERRY CHRISTMAS
  10. mixos1

    Datasheet for CXA1110AS/B

    Check here: http://www.sony.co.jp/%7Esemicon/english/90230.html There are many datasheets for CXA series but i can't see the CXA1110AS/B you are searching for. Maybe there is a suitable.
  11. mixos1

    Making PCBs with magazine's paper

    That's great News!! I split it in a new Topic so it will be more accesible.
  12. mixos1

    ISD2560 Voice Record/Playback IC

    Also here is a circuit on how to use it:
  13. mixos1

    Making PCBs with magazine's paper

    I was amazed when i read it also.. but i haven't try it yet. Maybe because it's glossy paper the toner doesn't stick well on paper and it's transfered to the copper when you iron it. Send him an e-mail and ask if this method really works. Don't forget to inform us!
  14. mixos1

    ISD2560 Voice Record/Playback IC

    Hello Here is the datasheet of this IC: Download It's a voice record/playback IC Hope that helps you.
  15. mixos1

    how real is it to power an inverter of 1.5kva with a solar panel

    Here is also a list of DC to AC converter and UPS circuits, so you can take some ideas! http://www.epanorama.net/links/psu_dcac.html
  16. mixos1

    Sine wave power inverter

    MP answers you exaclty what you needed :D ! I give you some nice links also: Uninterruptible Power Supply (UPS) FAQ http://www.jetcafe.org/~npc/doc/ups-faq.html DC to AC inverter and UPS Page http://www.epanorama.net/links/psu_dcac.html
  17. mixos1

    Quick question - Solid state Relay

    There are some solid state relays that at rated at 25A or 40A. If you find a relay of that amperage everything will work nice. Check this as a reference: http://www.aeonelectric.com/aeon%20electric/ssr/ssr.htm
  18. mixos1

    USB to EIDE Converter

    I made a little research about USB to IDE project and what I found follows. Many semiconductor companies have chips that do the conversion between IDE and USB and simplify the way you can connect an IDE device on USB, but you will need to draw your own schematic according to the datasheet and...
  19. mixos1

    Printer cable LCD Display

    You just install it and it runs as system service. So there must be a problem with your connections. Just recheck carefully.
  20. mixos1

    0-30 Vdc Stabilized Power Supply

    Today i received a report from a user from Argentina that build this power supply and it worked in his first attempt. Also he made the following modifications: "Replace R2 and R3 with 1/2W resitors, R2 heater, R7 with 10W resistor and R1 with 2-3W, C1 for 4700 uf, P1 is a many-turns...
Top