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Power supply
I guess you use just simple volt meter, which the display only show positive value.
yes it can, just reverse the connection to the - volt meter opposite with the + volt meter. And of course you have to change the display and add minus sign.
Transistor Tutorials
Transistor is one of the active component. Depend on application, there are two categories of transistor, transistor as switch (usually use in power electronics) and transistor as amplifier. When transistor use as amplifier, its amplify the current base with output in...
spwm atmel
This is just my suggestion, but if you want to control AC motor using inverter with digital domain, space-vector will give you great benefit rather than SPWM.
Maybe this link will useful for you
http://www.atmel.com/dyn/resources/prod_documents/doc7546.pdf
I don't think it can be measured. The power of transformer determined from the design. One of the parameter has been told FvM. The core determined the nominal voltage and for addition the size of conductor will determine the current capacity.[/i]
at your previous reply you just said need comment.... :D :D :D
well firstly i'll tell you that varying the amplitude will be great done by analogue because its analogue, i mean the amplitude span can be made much longer than digital, because digital is discrete. :D:D:D
but if you insist to done...
oh thank you echo47....
at first i found it is interesting way to post the message like that, challenging to find the true meaning of the message....but it has become bothering... :p and i think it make some people lazy to respond.
to sweta, you are right by saying varying the duty cycle will...
It will be difficult to adjust the amplitude by software. You can do scaling in the software, just multiply the value of sinus on the table before you put it to the OCR1A register. But you have to care with overflow issue and other thing.
The easiest way to achieve variable amplitude is by...
the timer in that code above will count from zero to the TOP value which is defined by the OCR1A register. There is mechanism that when the value of timer equal with OCR1A register, the timer count will be reset to zero (look like a over flow). Some other event occur such as interupt flag or OC...
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