28
Components required:
2 x 10 k
Ω
resistors,
1 x BAT85 Schottky
diode, 1 x moving-
coil instrument,
1 x breadboard, 1 x 9V
battery with clip con-
nector
Fig. 2.3a:
Diode in reverse
direction
Experiment
Nothing happens after the battery has been connected. The needle of the moving-coil instrument is not
moving.
The Schottky diode runs in the reverse current flow direction, and no current can pass. De facto, one flow
direction can be separated off from the other. We call this process
rectification
. By means of sensitive
measurement methods we can prove that although the diode is in the reverse direction, there is a very
small current flow. This can be used to measure the ambient temperature, for example.
The circuit diagram for this experiment is shown in Chap. 3, Fig. 3.3.
Summary of Contents for ELECTRONICS EXPERIMENTS BOX
Page 4: ......
Page 265: ...267 Fig 3 56 Cir cuit 56 Audio limiter Fig 3 57 Circuit 57 Amplifier for a storm detector...
Page 269: ...271 Fig 3 64 Circuit 64 Stabilizer for 1 9 V Fig 3 65 Circuit 65 Stabilizer for 2 5 V...
Page 275: ...277 Fig 3 80 Circuit 80 Quiztimer 30 seconds Fig 3 81 Circuit 81 Handy diode tester...
Page 315: ...317 Fig 3 179 Circuit 179 HF generator 150 kHz Fig 3 180 Circuit 180 HF generator 420 kHz...
