Need to translate please.------>({[[For more output power, place the cells in a "series" (increased voltage) and "parallel" (increased current) configuration. A recent design coupled an "array" of these solar cells with a 1.6MHz DC-DC switching converter IC to make an 80% efficient 6.0V DC solar power supply; current output was rated at 6.0V and 550mA.]]})
2007-05-09 17:05:42 · 4 answers · asked by Skyuo 1 in Science & Mathematics ➔ Engineering
Solar cells can only give out so much wattage at a specified voltage and current. To increase the voltage, you place the cells in series...ex: if you have 4 12V cells, you can put them all in series to get 48V...
Parallel configuration will give you more current...this all assumes of course that you have superior efficencey. when you add the parrallel combinations of series configurations, you can increase your overall powre abilities which is good for off-grid systems and the likes.
the later part of your quote, refers to a DC/DC converter which is a bit more complex then I think you're looking for...to use one, you must pick a topology and then build the controls around the chip...since most solar cells are 12V, I'd assume this was a 1.6Mhz buck converter...the positive side of these is that they convert voltages in very efficent ways...
in this case, if you had 6.0V and 550mA, you could power something continuiously that required ~3Watts.
2007-05-09 17:56:05 · answer #1 · answered by Scott 2 · 0⤊ 0⤋
Solar cells are considerably more useful if you can stack a number of them together. The amount of energy you can get out of a stack is dependent on the input in such a way that the source pressure can vary a lot depending on how much you are trying to get out. It is sometimes more useful to keep the source pressure, the voltage, the same under varying demand, the current. The company that sells the integrated circuit (the IC) to accomplish this is bragging on their ability to do this very cheaply- something like the people who make shower valves that don't freeze/scald you when water pressure changes.
2007-05-10 02:13:08 · answer #2 · answered by virtualguy92107 7 · 0⤊ 0⤋
It just says that you take some of cells and put the in series one following the other and build more than one series chain and tie them in parallel. Then they went through another circuit which converted the cell output to 6 volts. I don't know why they went through all that trouble to get 3 watts. You can't even light a night light with that.
2007-05-10 01:06:12 · answer #3 · answered by Gene 7 · 0⤊ 0⤋
That means the real value of voltage passed the circuit=100/80x6v=7.5v in other word the voltage of the cell made for 7.5volt but the operating or real output is 6v.
2007-05-10 00:55:25 · answer #4 · answered by Faisal R 3 · 0⤊ 0⤋