| PSK Transmitter |
Hi guys, I need some help on my design of a PsK Transmitter. Please guide me on this, i dont know where to start... tnx
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| Using Counter IC |
Hi, I want to count 5 signals which have a interval of 99hrs between each of them. And give an high output after 5 counts. Please suggest an IC. Thanks and Regards Nick...
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| HC Vs AC |
Hi Friends, We were using LS Logic family in our designs . Now when I saw Product life cycle from TI and Fairchild I decided to use HC logic family as it reached to maturity level...
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| solving a deceptively simple-looking switched RC circuit (singular circuit ?) |
Hi, I am confronted with what I believe is a "singular circuit" and I am having difficulty determining initial conditions for solving it ... Here is a description (wit...
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| IGBTs are pretty fast |
http://webpages.charter.net/dawill/Images/Induction719.jpg http://webpages.charter.net/dawill/Images/Induction720.jpg http://webpages.charter.net/dawill/Images/Induction721.jpg Si...
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| Type of Scart Cable |
I need a Scart Cable that has a 3 ringed phono 3.5mm plug type plug at the end, but I don't know what it is called, or where I can get one. Does anyone know where I will be able to ge...
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| Power Supply Confusion |
How is it possible-using a High current DC power supply to operate something which require lesser current..?For ex: Using a DC power supply 5 V,2A to operate something which require just 5V ...
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| PCB Layout...loop areas? |
Hi! I've been reading some PCB layout design documens. When they say loop areas, are they only referring to loops on one side of the PCB? I looked at my design and noticed t...
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| OT: Anybody here? |
http://www.comics.com/creators/wizardofid/archive/wizardofid-20060131.html Cheers! Rich
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| OT: Groundhog day |
This year, both Groundhog Day and the State of the Union Address fall on the same day. It is an ironic juxtaposition: One involves a meaningless ritual in which we look to a creature of litt...
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| simple current source for LED and 3 cells? |
Hi folks, I have some cheap LED torches operating from 3 AA batteries that I would like to improve. The curcuit in the torch consists of a 22 ohm resistor for each white led giving abou...
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| used Heat Press? and Printed Circuit Boards |
I did a 6x9 board last night and it came out 85% done ... I used the blue toner transfer paper and I am certain I can get 99% if not 100% transfer if I could get even pressure applied ...
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| Common SMD size |
What is the most common (of the larger) SMD sizes for resistors, caps and the like? The style number is what I'm after. Larger the better, for me and unsteady hands but don...
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| Pspice Filter Analysis |
This post contains two related questions. A few months back, I implemented a prototype ADC (analog) interace circuit and used a 2 pole sallen-key filter using a Burr Brown opa237 ...
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| Download MagNet Trial Edition for free |
The power and ease-of-use of the industry-leading 2D magnetostatic fields' solver is now available at no cost. MagNet Trial Edition is fully functional and contains all of the same
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| hi |
hi friends i am new in this group i am working on pcb failure cause if somebody have some document please send it me on my id ansari82@gmail.com my contact no 098522507 <...
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| how can we reduce traffic jams on the roads |
i hav been workin on a theme that our old traffic lights and not able to control traffic situations . i hav thought of a sensor system rather than a pressure system presently availabl...
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| bipolar transistor = bipolar junction transistor? |
Am I right?
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| Bluffing or Real of SD card speed |
I have recently bought a SD card and I was told that it was made by Korea Hyundai. The seller said that it is one of the few which got the ability to manufacture the fast chip on the SD card...
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| Software-only USB driver for AVR |
The following press release may be interesting to readers of this news group because it presents a complete solution for interfacing AVR mircrocontrollers to USB Hosts. In the minimum config...
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| Labelling plastic boxes |
Hi guys, I have a few plastic (mainly ABS type) boxes that I put my completed PCB's into. I want to label all the LED's and switches etc. somehow onto the box itself without ma...
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| Very low thresold/depletion power TO-220 MOSFET? |
Hi all, The only missing link in a design I'm doing is a swith that must be able to operate at very low voltages (1V or less if possible), have minimal losses, available through m...
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| Get Rich |
Take advantage of a great deal
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| control of 24VAC motor? |
I'm pretty new to electronics and was wondering what it would take to control two 24AC motors on a pan/tilt head with 12V DC and have a variable speed setting? Is this very tough? I'm not ...
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| Why to use buffers? |
Hi, I have to modify an old circuit, i have to reduce the circuit but i am finding buffers(Voltage followers) being using after gain section and before comparator section using Op...
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| Pot taper |
Is there a pot that has a taper in the shape of 1/X if X is greater than zero and less than 1. I guess you'd call it reciprocal taper. bg
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| DSP chips for digital audio? |
Looking for DSP chips to act as audio digital filter/interpolators and accept I2S standard as used in CD and DVD applications. Can anyone suggest some? thank you,
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| is a discrete time system always a distributed system? |
I am a new bee in control, I am studying how to distinguish between a lumped system and a distributed system. Today in my class, I hear my prof told that a discrete time system is always a d...
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| PIC Clock |
Looks like I'm probably going to be using a PIC The clock seems OK with just an xtal and a couple of caps. However, I've had problems with such setups on other uPs in the past. How reliable...
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| speaker isolation |
Hello, I made a portable enclosure for a car radio that has a negative ground but the left and right speaker outputs have isolated grounds from each other and the chassis. <...
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