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Dc-DC design help
Is there a possible way of getting a variable voltage output with a constant input voltage?
I want to supply 12V and get out 0-12V at approximately 1A. Il be using a current shunt so that I can provide a constant current. Im planning on using a 100mohm resistor outputting...
mc34063a
Hi,
Im trying to go from 12V to 15V but I seem to be having an issue. I have the inverting setup giving me -15V and it works fine, but I cant get the +15V to work. In this data sheet
https://focus.ti.com/lit/ds/symlink/mc34063a.pdf
on page 6 there is the circuit im using. I dont...
DC to DC Buck Boost
Im trying to design a simple DC-DC current controlled buck boost converter, and im having a tough time. I calculated the inductor value by using this eq. L=Vin^2/(10f*Iout*Vout)
Where Vin= 12V Vout= 6-18V (used 18.) Iout= 1Amax f=200kHz
I can get the converter to boost just...
38khz pic remote
Do you have any suggestions for an dedicated remote control IC? This is all I can seem to find.
https://www.infraredremote.com/RS117.htm
Its pretty much a custom application, and I only need 10-12 buttons maximum.
Thanks!
Andrew
555 38khz
Im working on a IR-RF-IR transmitter, for a tv remote.
I took it with me to school and took some screen shots of the remote output, they're below. Its a 3Vpp PWM wave with a 1Vpp 38kHz signal riding on top of it.
On the transmitter end I'm gonna use an op-amp to cut off the 38kHz...
Cool, im gonna order the RFM. Now I can use the same one for receiver/transmitter right? Im pretty sure its a transceiver.
You know whats funny, is that if it in fact did change the the signal it would be ok. Weird, yes, but il explain why. Its gonna be used for a Leviton lighting control...
This is probably a really basic question but, is the output of the receiver the same serial feed that is input on the transmitter side?
Also, would this work a little better than the TI?
**broken link removed**
Thank you!
Andrew
Thanks,
Now ook using this same ic, or do you think there is another one better suited to the application?
Where in New England are you from? Im from MA.
Andrew
Im new to the whole RF area and I have no idea as where to start.
My ultimate goal is to use an infared remote control, remove the led and install a optocoupler in its place. Then use that as a serial input into the RF IC. At the receiver end I would change back to IR.
Im looking for some...
I need to sort various arrays in ascending order in C.
Im looking at the Qsort function, but im a little confused as to what the compare part of it does?
Can anyone help?
Thanks
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