Our solar cell
To build our solar cell use a 2N1711 transistor (PNP) of which only took advantage of a pn junction, the emitter to base.
The Beatles Magical Mystery Tour Movie Subtitles English Full
Cut the metal cover that encapsulates the transistor carefully. You should not break the thin wires inside connecting the transistor with the pins (see photo below).
Inside, stuck on the bottom, we discovered the transistor itself measuring approximately 1 mm 2 . Him out two very fine thread. The transistor pins that go to the issuer and the base are isolated from the cabinet by a few points of epoxy resin and leave them to the transistor two very thin metal trickles. Instead collector pin is welded to the bottom of the box. This is the photo below you can see the two thin wires and resin circles which isolate the pins of the transistors in union with the wires.
We use two blades of three of the transistor and to illuminate them with different intensities found that the current intensity varies.
Pictured left illuminated by a halogen light flexo (coming quite close to the bulb). In the other it exposed to sunlight inside the classroom.
We put the multimeter in DC and 100 mV scale by connecting the positive probe (going to the plug from the socket 100 mV) to the pin base and probe the socket = , to pin the issuer. We pressed hard while illuminating the tester probes to the pins of the transistor and see how the tester detects the passage of current.
 |  |
When approaching illuminate more intensely a halogen lamp, we achieve a higher current.
rode the following circuit:
corresponding to the following schedule:
As transistors did not have enough we can not stress enough to illuminate the LED.
Another way of riding is the following, call common basis
0 comments:
Post a Comment