grundig electrical components German grundig models grundig prices

grundig electrical components are Schottky barrier diodes named after their inventor, Dr. Schottky. Schottky barrier diodes are not made using the principle of forming a PN junction by contact between P-type semiconductors and N-type semiconductors, but rather using the principle of metal-semiconductor junctions formed by contact between metal and semiconductor. Therefore, Schottky barrier diodes are also called metal-semiconductor (contact) diodes or surface barrier diodes; they are a type of hot-carrier diode.

grundig electrical components principle

The forward characteristics of the volt-ampere characteristic curve of a Zener diode are similar to those of ordinary diodes. The reverse characteristics show that when the reverse voltage is lower than the reverse breakdown voltage, the reverse resistance is very high and the reverse leakage current is extremely small. However, when the reverse voltage approaches the critical value of the reverse voltage, the reverse current increases suddenly, which is called breakdown. At this critical breakdown point, the reverse resistance drops suddenly to a very small value. Although the current changes over a wide range, the voltage across the diode remains basically stable near the breakdown voltage, thereby achieving the voltage stabilization function of the diode.

grundig electrical components characteristics

The static characteristics of a sensor refer to the relationship between the output quantity and the input quantity for static input signals. Since the input and output quantities are independent of time at this stage, their relationship, i.e., the static characteristics of the sensor, can be described by an algebraic equation without time variables, or by a characteristic curve plotted with the input quantity as the abscissa and the corresponding output quantity as the ordinate. The main parameters characterizing the static characteristics of sensors include: linearity, sensitivity, hysteresis, repeatability, drift, etc. (1) Linearity: Refers to the degree to which the actual relationship curve between the sensor output and input deviates from the fitted straight line. It is defined as the ratio of the maximum deviation between the actual characteristic curve and the fitted straight line over the full scale range to the full-scale output value. (2) Sensitivity: Sensitivity is an important indicator of the static characteristics of a sensor. It is defined as the ratio of the increment in the output quantity to the corresponding increment in the input quantity that causes this increment. Use S to represent sensitivity. (3) Hysteresis: Hysteresis is the phenomenon where the input-output characteristic curves do not coincide during the change of the input quantity from small to large (forward stroke) and from large to small (reverse stroke). For the same magnitude of input signal, the output signal magnitudes for the forward and reverse strokes of the sensor are not equal; this difference is called the hysteresis difference. (4) Repeatability: Repeatability refers to the degree of inconsistency in the characteristic curves obtained when the sensor input quantity undergoes continuous multiple full-scale changes in the same direction. (5) Drift: Sensor drift refers to the phenomenon where the sensor output changes with time while the input quantity remains constant. There are two reasons for drift: one is the sensor's own structural parameters; the other is the surrounding environment (such as temperature, humidity, etc.). (6) Resolution: When the sensor input increases slowly from a non-zero value, the output undergoes an observable change after exceeding a certain increment; this input increment is called the sensor's resolution, i.e., the minimum input increment. (7) Threshold: When the sensor input increases slowly from zero, the output undergoes an observable change after reaching a certain value; this input value is called the sensor's threshold voltage.

grundig electrical components structure

A generator is usually composed of components such as the stator, rotor, end covers, and bearings. The stator consists of the stator core, winding coils, frame, and other structural parts that fix these components. The rotor consists of components such as the rotor core (or magnetic poles, yoke), windings, retaining rings, centering rings, slip rings, fan, and shaft. The stator and rotor of the generator are connected and assembled using bearings and end covers, allowing the rotor to rotate within the stator, cutting magnetic flux lines, thereby generating induced electromotive force, which is led out through terminal blocks and connected to the circuit to generate current.

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