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* VC/VCO, voltage-controlled oscillator is an electronic oscillator whose oscillation frequency is controlled by a voltage input. The applied input voltage determines the instantaneous oscillation frequency. Consequently, modulating signals applied to control input may cause frequency modulation (FM) or phase modulation (PM) (wikipedia A). Within the PhyChip Synthesiser, the VCO is given to physarum polycephalum, whose resistance varies between 1300-1500 Ohm/cm. Within the analog part pf the modular there are three main components integrated, two of which are designed using the CD4584 Schmitt trigger. The oscillators are based on Nicolas Collins work (Collins 2009). | * VC/VCO, voltage-controlled oscillator is "an electronic oscillator whose oscillation frequency is controlled by a voltage input. The applied input voltage determines the instantaneous oscillation frequency. Consequently, modulating signals applied to control input may cause frequency modulation (FM) or phase modulation (PM)" (wikipedia A). Within the PhyChip Synthesiser, the VCO is given to physarum polycephalum, whose resistance varies between 1300-1500 Ohm/cm. Within the analog part pf the modular there are three main components integrated, two of which are designed using the CD4584 Schmitt trigger. The oscillators are based on Nicolas Collins work (Collins 2009). | ||
* In electronics, a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a | * "In electronics, a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a 'trigger' because the output retains its value until the input changes sufficiently to trigger a change" (wikipedia B). | ||
* CASCADE module: frequency divider. a circuit that takes an input signal of a frequency and generates an output signal of a frequency: f(out)=f(in)/n where n is is an integer. Within the modul the integer is 2, 4, 8, 16, 32, 64, 128, 256, 512, and 1024. | * CASCADE module: frequency divider. a circuit that takes an input signal of a frequency and generates an output signal of a frequency: f(out)=f(in)/n where n is is an integer. Within the modul the integer is 2, 4, 8, 16, 32, 64, 128, 256, 512, and 1024. |