Electronic terms, glossary of electronic terms, electronic
terms starting from alphabet H
HyperScrollTM :
New HyperScrollTM feature locates and
displays fish targets at higher boat speeds with increased soundings per second.
Half wave rectifier
A diode rectifier that converts AC to
pulsating DC by eliminating either the negative or the positive alternation of
each input AC cycle.
Harmonic
Sine wave that is smaller in amplitude
and some multiple of a fundamental frequency. Example: 880 Hz. is the second
harmonic of 440 Hz., 880 Hz. is the third harmonic of 220 Hz.
High-pass filter
A tuned circuit designed to pass all
frequencies above a designated cut-off frequency. Frequencies below the cut-off
frequency are rejected or attenuated
High tension
Lethal voltage in the kilovolt range and
above.
Hole
A gap left in the covalent bond when a
valence electron gains sufficient energy to jump to the conduction band
Hologram
Three-dimensional picture created with a
laser.
Holography
The science dealing with three-dimensional optical recording.
Horizontally polarized wave
Electromagnetic wave that has the electric field in the
horizontal plane.
Hybrid circuit
Circuit that combines two technologies (passive and active or
discrete and integrated components) onto one microelectronic circuit. Passive
components are usual made by thin film techniques, while active components are
made with semiconductor techniques.
Hysteresis
Amount that the magnetization of a material lags the
magnetizing force due to molecular friction. In Schmitt Trigger circuits, the
difference between the upper and lower trigger points