Recent content by Alex Tsekenis

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    need help H bridge ups

    Google H-bridge, read the datasheets of the parts your mentioned and come up with a schematic that we can work on. Post it here
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    Sourcing ACS758 hall effect current sensor

    Try these guys: Avnet Electronics Marketing (Australia) Pty. Ltd. (Distributor, Allegro Products) 9B, 9-11 South Street Rydalmere NSW 2116 Sydney, Australia Phone: +61 2 9585 5511 Fax: +61 2 9585 5519 Web: www.avnet.com Email: [email protected] They might be wholesalers only, but they might...
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    Easy PCB Design Software (single & double sided)

    I would recommend EAGLE in this case. http://cadsoft.de/
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    Looking for Knowledge/Assistance

    Here is how to connect the components. The wires dont need to be black and red, just make sure the positive (usually red) connection of the buzzer ends up to the positive connection of the 9V battery. The metal contacts can be aluminum foil, steel plates, copper pipes, anything. You will not be...
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    What components should i use for this

    The electronic components will be just two small DC motors and a two channel DC motor speed controller. The DC motors you probably have already, the speed controller you can buy online, just google for 'DC motor controller'. The difficult part will be to make the mechanical systems.
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    Design new 0 to 30V power supply.

    Is that a lot or is it just me? Have you tried replacing U5? Sorry, for some reason the forum removed my post notification from this topic.
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    Advanced Battery Technologies

    I do not know the answer to this but it will probably be in this book: http://www.amazon.co.uk/Handbook-Batteries-David-Linden/dp/0071359788/ref=sr_1_2?ie=UTF8&s=books&qid=1268218232&sr=8-2
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    Isolated ground planes on a MCU controlled high voltage IGBT

    Unipolar 15V should be sufficient assuming the totem pole drivers at the output of the isolators conduct good enough. Quantitative calculations will reveal that. The schematic of the system will need to show a reference of the supply to the isolators to the emitter of the igbts like it is shown...
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    Need idea for testing Leds

    Switch it ON and test the voltage across it.
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    Hyperdimensional Resonator

    Trim your fingernails man.
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    Touch Sensitive Aluminium Block

    I think a hum based system will be more appropriate here. The surface is quite big, it will probably act as a proximity detector if you go with capacitance sensing.
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    where i work (pic)

    Nice spot. I like the way you have arranged for the components on the DTE board.
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    Capacitance Meter diagram question

    Adding on Hero's post, they look like this: The second type is probably what you are looking for for your capacitance meter. You can buy them very cheaply at your local electronics shop.
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    120volt to +36v-0-36v transformer From (3) 12volt ct transformers?

    No. Not even worth thinking about it.
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    Need Help...I have (2) 25volt 3 amp Transformers and Need 1 40-50volt 3amp Trans

    kylefrink You can use your original 25V transformers connected in series like this: for a supply of +/-35VDC as Hero pointed out.
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