Human Interaction
7 Segment Displays
While 7-Segments seem old-school considering today's widespread use of HD screens, they provide a simple way to indicate operating states or measurement values in devices where robustness and reliability are important
Switches
Our Switches are characterized by performance stability and long lifetime. All metal elements are corrosion resistant proven by a 48 hours salt spray test. Polyimide tape or silicone rubber protect the switch even in rough environments.
Signal LEDs
Signal LEDs provide clear visual indication of operating states, warnings, or activity in an electronic system. They are available in various colors and sizes, providing a simple and intuitive status display for users.
IR Emitters & Detectors
Infrared emitters and detectors enable non-contact communication and sensing. They are suitable for e.g. remote controls, proximity sensors, and optical data links.
Audio Inductors
Our Flat Wire Inductors are designed to be used in high quality Class-D audio applications. The parts have been tested and optimized in real applications to reduce total harmonic distortion and noise (THD+N) and idle mode losses significantly.
Topologies
Short Introduction to Human Interaction
Human Machine Interfaces (HMIs) allow users to interact with electronic systems. Tactile switches serve as input devices to trigger actions or control functions. Indicator LEDs or 7-Segment displays provide visual feedback, showing system states such as power, errors or activity. Speakers, offering audible alerts or status signals, are enabled by Class-D Amplifiers.
Learn More About Human Interaction
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![The graphic shows the dependence of the amplitude on the frequency.]( "CM PN Harmonic Distortion")
Total Harmonic Distortion (THD) of a Class-D audio amplifier: A disadvantage is harmonics with multiples of the fundamental frequency. By selecting the appropriate inductance, the harmonics can be attenuated.
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![Diagram of the Design-In Steps]( "CM PN design in steps")
Steps for designing the LC filter between amplifier and speaker. 1) Dimension the LC filter 2) Check current carrying capacity 3) Select the type of inductance 4) Optimize the PCB layout considering EMC.
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![The graphic shows the dependence of the relative luminous intensityon the viewing angle.]( "CM PN Luminous intensity for different viewing angles")
Monochromatic ceramic LEDs: Light intensity for different viewing angles. Besides the viewing angle, color also plays an important role.
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![The graphic shows the dependence of the relative emission intensity on the frequency.]( "CM PN Spectrum Distribution of LEDs")
Light spectrum of different LED types of various colors by wavelengths.
