KRIWAN electrical components Germany KRIWAN model KRIWAN price

KRIWAN electrical components consist of two conductors placed close to each other with a non-conductive insulating dielectric layer in between, forming a capacitor. When voltage is applied across the two plates of the capacitor, it stores charge. The capacitance value is numerically equal to the ratio of the charge on one conductive plate to the voltage between the two plates. The basic unit of capacitance is the Farad (F). In circuit diagrams, capacitive elements are usually denoted by the letter C; capacitors are components that store electric charge and electrical energy (electric potential energy). A system of conductors where one conductor is surrounded by another, or where all electric field lines originating from one conductor terminate on another conductor, is called a capacitor.

KRIWAN electrical component principle

The Hall voltage varies with the magnetic field strength; the stronger the magnetic field, the higher the voltage, and the weaker the magnetic field, the lower the voltage. The Hall voltage value is very small, typically only a few millivolts, but after amplification by an amplifier in an integrated circuit, the voltage can be amplified sufficiently to output a stronger signal. To enable the Hall integrated circuit to function as a sensor, mechanical methods are required to change the magnetic field strength. A rotating impeller is used as a switch to control magnetic flux. When the impeller blades are in the air gap between the magnet and the Hall integrated circuit, the magnetic field is diverted away from the integrated chip, causing the Hall voltage to disappear. Thus, changes in the output voltage of the Hall integrated circuit can indicate a specific position of the impeller drive shaft. Using this working principle, the Hall integrated circuit chip can be used as an ignition timing sensor. Hall effect sensors belong to the passive sensor category; they require an external power supply to operate, a characteristic that enables them to detect low-speed operation.

KRIWAN electrical component performance

1. Protection characteristics: When the impact strength of the surge source does not exceed the specified value, the clamping voltage of the varistor must not exceed the surge withstand voltage that the protected object can endure. 2. Surge withstand characteristics: The varistor itself must be able to withstand the specified surge current, surge energy, and the average power when multiple surges occur sequentially. 3. Life characteristics include two aspects: one is the continuous operating voltage life, meaning the varistor should reliably operate for a specified time (in hours) under specified ambient temperature and system voltage conditions; the other is the surge life, meaning it can reliably withstand the specified number of surges. 13. After the varistor is introduced into the system, in addition to its "safety valve" protection role, it introduces some additional effects, known as "secondary effects," which should not degrade the normal operating performance of the system. The main factors to consider at this stage are three: first, the inherent capacitance of the varistor; second, the leakage current under system voltage; and third, the influence of the varistor's nonlinear current coupling through the source impedance on other circuits.

KRIWAN electrical component principle

Electrodynamic loudspeakers, also known as moving-coil loudspeakers, are electroacoustic transducers based on the electrodynamic principle. They are the most widely used type of loudspeaker, primarily for three reasons: 1. Electrodynamic loudspeakers have a simple structure and are easy to manufacture. They do not require large space, resulting in low costs and widespread adoption. 2. These loudspeakers can achieve excellent performance, obtaining a uniform frequency response in the mid-frequency range. 3. These loudspeakers are continuously improving. Decades of loudspeaker development history reflect continuous improvements in design, craftsmanship, and materials, as well as performance advancements over time. Electrodynamic loudspeakers are mostly cone-shaped or dome-shaped. The structure of a cone loudspeaker can be divided into three parts: 1. The vibration system includes the diaphragm, voice coil, centering spider, dust cap, etc. 2. The magnetic circuit system includes the upper pole piece, pole core, lower pole piece, magnet, etc. 9. The auxiliary system includes the basket, surround, terminal board, and phase plug. According to Faraday's law, when a current-carrying conductor passes through a magnetic field, it experiences an electromagnetic force. Its direction conforms to Fleming's left-hand rule, with the force perpendicular to both the current and the magnetic field directions. The magnitude of the force is proportional to the current, the length of the conductor, and the magnetic flux density. When an alternating audio current is input to the voice coil, the coil experiences an alternating driving force, producing alternating motion that drives the paper cone to vibrate, repeatedly pushing the air to generate sound.

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