Battery implementation

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I would like to implement my own battery to power a computer monitor and a CPU for 12 hours before being recharged. The condition is that the power leakage must be less than 300 micro watts. I would like to know the steps involved in making my own battery to perform this task? I would also appreciate it if I could get material on this subject as well as the power conversion like converting from AC to DC etc involved in making this battery.
 

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Microcontroller Programming

Hi I am planing on using controllers to enable the legs of a table to move up and down. I know I will have to drive the legs using a motor, I am using a optical encoder to give the position of the legs as it moves up and down. I would like to know the controller to use as well as the method to go about in implementing this project. I am only familiar with bread board connections, hence is it possible to implement this using a bread board first and then switching over to something else. Any suggestions on this would be greatly welcome.
 
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berkeman
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I would like to implement my own battery to power a computer monitor and a CPU for 12 hours before being recharged. The condition is that the power leakage must be less than 300 micro watts. I would like to know the steps involved in making my own battery to perform this task? I would also appreciate it if I could get material on this subject as well as the power conversion like converting from AC to DC etc involved in making this battery.
Commercial units are available for this task -- they are called Uninterruptible Power Supplies (or UPS units). Here is some basic info:

http://en.wikipedia.org/wiki/Uninterruptible_power_supply

You can google to get some hits on units where you can download their datasheets to see what size batteries they use, and how long they last for your monitor output load when there is no AC Mains power.

The condition is that the power leakage must be less than 300 micro watts.
This makes no sense to me. Your monitor obviously consumes more than 300uW. What do you mean by this term "power leakage"?
 
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berkeman
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Hi I am planing on using controllers to enable the legs of a table to move up and down. I know I will have to drive the legs using a motor, I am using a optical encoder to give the position of the legs as it moves up and down. I would like to know the controller to use as well as the method to go about in implementing this project. I am only familiar with bread board connections, hence is it possible to implement this using a bread board first and then switching over to something else. Any suggestions on this would be greatly welcome.
What class is this for? You would use a microcontroller (uC) that you are familiar with, and have the development tools and demo board for, so that you can write your code and load it into the demo board. PIC uCs are commonly used for this type of project, but there are others available. Go to the Microchip PIC website and look for application notes about motor controller applications.
 

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