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I am looking for a frequency modulation circuit that operates roughly in the 150kHz range. modulates audio.
It need a means of providing an output of the 150kHz frequency before being modulated. so things like on the fly LC oscilation may not work.
I am curios if the circuit that I have combined has a chance of working?
I have already made it, but the LED is getting hot, the whole thing is SMD so I don’t want to cut traces just yet.
I ran some simulations, they returned within reason; error of 1 mA over all 3 leds.
Protel 2004 Classes
Dear people, I have problems using classes in Protel 2004.
In the PCB I can go to
Design -> Classes
And make a new class so that it may be used in my routing rules.
However if I now go back to the schematic and I select
Design -> Update PCB Document ->
I have a FET turning on a motor, its a 24V, 3A motor, so its not overly big;
the FET keeps dying, as well as a cap I placed, 600V also keeps dying on me.
I need the thing to turn on quickly using a FET, can anyone recommand protection techniques for it (i dont...
bdm for hcs12
I am planning on using the MC9S12NE64,
this is new chip to me; i need a bdm to program this device.
can anyone recommand a suitable programmer bdm or otherwise schematic.
wlan card with fpga
Does anyone know of method of interfacing a FPGA to an existing Wireless card.
I know it depends on chipset and "codes" issued to card, I am wondering if someone attempted this 1st.
Could anyone recommand libraries i should look in in Linux or projects on how to do a screen capture, this will be converted into video so i need it quite smooth, so far i have been able to do this but its 2 damn slow on the capture.
if any one could recomand discussion board...
does anyone know why anyone would place a ground plane, but its checkered, so there are thin bands of non-cupper dips through-out the ground plane.
example would be a 10mil trace with a 30 mil spacing, so there are areas of non cupper in the ground plane
are they trying to save cupper or...
does anyone know anything about low voltage analog logic , of particular to me is how a not gate is made (the building block for everything).
i dont think its possible with transistors/FET's as they have a minimum of 0.7V drop so ...
If anyone could provide further hints i would...
I am looking to generate a colour image on TV from a jpeg or some-other supported type image.
I am looking for a chip sollution.
If anyone has any hints on chips to use or other wise.
has anyone ever dealt with this device?
i have found it has a patent as well as a web site that has schematics
**broken link removed**
they seem to be fine but has anyone actually used/heard of one being used.
any feedback on the subject would be most welcome
does any one know a way to make a double sided board via (conductive through hole) for a PCB.
if anyone has any tips/methods please share.
there will be smt components as well as places where the DIL foot acts as the top and bottom layer so it cant be a wire, but a "true" via or...