ground

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Related to ground current: ground resistance, earth current

ground

 [grownd]
1. a path of conduction from an electrical circuit to the earth.
2. to connect an electrical circuit or electrical equipment to the earth.
3. zero electrical potential.

ground

Etymology: AS, grund
1 (in electricity) a connection between the electric circuit and the ground, which becomes a part of the circuit.
2 (in psychology) the background of a visual field that can enhance or inhibit the ability of a patient to focus on an object.

ground

1. Basic substance or foundation.
2. Reduced to a powder; pulverized.
3. In electronics, the negative or earth pole that has zero electrical potential.

figure

A part or pattern in the visual field which has the perceptual attribute of completeness and is perceived as distinct from the rest of the field which forms the ground. Example: a printed word against a background page.
ambiguous figure An image or drawing arranged in such a way that its perception oscillates or flips involuntarily between, usually, two interpretations even though the retinal image remains constant, thus indicating that higher cortical processing are involved. Syn. reversible figure. See Blivet figure; Kanizsa figure; illusion; Necker cube; Rubin's vase; Schroeder's staircase.
Blivet figure An 'impossible' figure in which three apparently solid tubes are attached at one end of a rectangular base which projects only two bars (Fig. F4). See Necker cube; Schroeder's staircase; Rubin's vase.
fortification figure See scintillating scotoma.
Kanizsa figure An ambiguous figure in which the illusory contour of a square (or triangle) appears in the middle of four (or three) truncated solid squares (or circles). It is an illustration of the perceptual ability to make sense of an incomplete figure by creating a 'whole' image from the separate elements (Gestalt organization). Some people cannot perceive the contour. Syn. Kanizsa square (Fig. F5).reversible f. See ambiguous figure.
Fig. F4 Blivet figureenlarge picture
Fig. F4 Blivet figure
Fig. F5 Kanisza figureenlarge picture
Fig. F5 Kanisza figure
References in periodicals archive ?
One clear advantage of this structure is that only half the ground current needs to cross the split plane, thus cutting the effect of the split in half.
The device features a PSRR (power supply rejection ratio) of more than 70dB at 1kHz with ground current of less than 95uA at 100mA.
Fabricated in CMOS technology, the MIC2215 sets a new industry standard for triple LDO performance with a PSRR (power supply ripple rejection) of more than 70dB at 1kHz and a ground current of less than 110uA per output at light load.
Its ultra-low dropout, high PSRR, and low ground current, coupled with low noise and fast turn-on time, make it ideal for demanding portable applications such as cellular phone RF.
4%-owned subsidiary of Vishay Intertechnology (NYSE:VSH), today announced the launch of the Si9185, a 500-mA CMOS low-dropout (LDO) regulator that features very low dropout and ground current in an exceptionally compact, thermally enhanced MLP33 PowerPAK package.
The LX8816's design is optimized for system efficiency, consuming minimal ground current and directing quiescent current to the load.
This protects equipment against damage from electrical surges and differences in ground current voltages.
The LDOs allow for extremely low ground current and high accuracy, thereby extending standby time.
They offer the lowest dropout, great noise performance and low ground current.
A tiny low-dropout (LDO) regulator featuring the world's lowest ground current (650nA) has been designed by Micrel Semiconductor for use in battery-powered devices.
Under a 150-mA load condition, the SiP21101 and SiP21102 feature an extraordinarily low dropout of 130-mV and a ground current of 110 microamps, helping to prolong battery life in low-voltage portable electronic systems.