The most important application of the organic schottky barrier
diode is rectifiers. A rectifier is an electrical device that converts
Alternating Current (AC), which periodically reverses direction, to Direct
Current (DC), which flows in only one direction.
Figure 1: Half
wave rectification of an AC signal
Besides the rectifier, organic schottky diode could be
used as a voltage clamping as well. The definition of clamping circuit is to
clamp a waveform to a specific DC level.
Figure 2: An idealized
circuit of clamped capacitor circuit
For example, the input AC
signal is shown below as Figure 3. In the circuit, firstly, the capacitor will be
full charged, so Vc will become +6 volts. In this case, the lowest output
voltage will “clamped” to zero. When 4V is applied, the output voltage becomes
4+6=10V. And the output voltage will appear as Figure 4.
Figure
3: The input AC signal
Figure 4: The output of the clamped circuit
Reference:
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