Do you need to know the latest news about programmable dc power supplies? Do you would like to be the initial in line concerning the developments on programmable dc power supplies? Are you currently itching to obtain as much as the minute details?
This artice will have the specifics which you have to have which is fresh from the supply! You could subscribe to our feeds or it is possible to join the mailing list, so you can make certain that you are in with the instances,and ahead of absolutely everyone!
Reviews: customer reviews...
List Price: unavailable
Sale Price: Too low to display.
No description available.
No features available.
There was an error connecting to the Amazon web service, or no results were found for your query.
You’ll obtain loads of matters to develop into believed to become about %keywords%, and these that take place to be heavily in to the subject are most likely to choose to know much much more. Even though this post serves as no a good deal greater than an introduction, nothing stops you from putting the data to exceptional use.
And got the following answer:
Ok break it down: 1) A power supply converts AC power (110 in the states) to some other required voltage. For this (lab) project I'd presume a DC regulated voltage from, say 1.5 to 15V something like that. 2) Digital and programmable means you'd control the output voltage with some sort of digital signal like up/down buttons, a keypad, or a PC hookup. 3) You are supposed to use an 8051 to accomplish this. So there are several ways to do this. One way would be to have the 8051 accept a command to set the voltage and produce a PWM signal. Let's say the PWM signal is a 5V output switched from 0 to 100%. You can use an RC filter to produce 0V to 5V from this signal. If your instructor is nice, you could argue that this meets the criteria -- especially if you use it to drive a pass transistor to develop some serious current (but your voltage is now 0V to 4.3V because of the BE drop). But I'd instead use an op amp with gain X3 (plus a little extra) so that I got from 0 to 15.7V and then use the pass transistor. Another idea would be to use the voltage to drive a simple current source which would program a LM317 voltage regulator. Web searches on things like LM317, PWM, and "pass transistor" are your friends here.