andrewgoad
New Member
I am a senior in high school and have been in electronics classes for three years. This year we have to complete a senior project. I have been really interested in Sound recently as I have just purchased a sound system for my car. For my project I had the idea that I could make a wattmeter to measure the watts running to each of my speakers and subwoofers. I have fund circuits that would work for my project that use programable processors as the main part of the circuit, but they seemed pretty complicated for my ability level and way too expensive. What I was thinking would work is if I could make a voltmeter with no display, a current meter alongside of the voltmeter with no display, and a chip that would connect the two circuits as inputs and multiply them together to give me my ouput in an LCD display of Watts. I could use switches to control which area in my sound system I want to monitor. Also the voltage and current sensors must be large enough to cover up to 1200 Watts. Does this idea seem logical, and can somebody help me with a schematic? Also what type of senosrs do I need for the Watts that I am monitoring? Any help would be greatly appreciated!!!