I have to calculate the ripple voltage of four different capacitors in a power supply. the power supply is a transformer, bridge rectifier, load resistor and capacitor would go across the load.
I used multisim to simulate the circuit. I looked at the ripple which has a peak to peak value.
my question is, to get the mean dc value, what is the formula for this.
I would like to amplify a 2 GHz sinusoidal voltage signal (0.22 V peak to peak) using an operational amplifier. The gain I would like from the operational amplifier is about 5, that is, I would like a voltage output from the amplifier to be approximately 1 V peak to peak given the input. The problem is I can't seem to find an op. amp.
OK. I have been using Ubunutu for a number of years now ( maybe 6) and have been a huge fan /supporter. We have three computers in our house running on Ubuntu. Two on Lubuntu and one on Ubuntu. Every thing is great then come 12.10. The upgrade screws up all three computers. So I say well.... I should do a clean install....screws up all three computer.
Technology's blazing fast progression in speed and other capabilities has left most of use buying new computers every 2-5 years. Although the price of computers seems to come down every year they still represent many hours of payed work for most of us. With this in mind I always first try to repurpose old computers by using them for a file/print server or router/NaT box for my home.
Spanish open hardware phone platform manufacturer Geeksphone, which created the first developer preview devices for Mozilla’s Firefox OS (aka Peak and Keon), has announced it’s now taking pre-orders for a new beefed up consumer version of its Peak smartphone that it’s called Peak+.
Geeksphone’s original two developer-focused devices sold out a few hours after going on sale
In case you thought Skype may be slowing down while settling into being a part of Microsoft and recently celebrating its ninth birthday, here are some numbers that seem to indicate otherwise: Last week, Skype reached a new peak of 45,469,977 concurrent users online, part of a strong run for the peer-to-peer voice/video/chat service this year.