MORA electrical components Germany MORA model MORA price

MORA electrical components are devices that use the principle of electromagnetic induction to change AC voltage. The main components are the primary coil, secondary coil, and iron core (magnetic core). Main functions include: voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer). Transformers can be classified by purpose into: distribution transformers, power transformers, fully sealed transformers, combined transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection transformers, box-type substation test transformers, phase-shifting transformers, high-current transformers, excitation transformers, etc.

MORA electrical component principles

Optical measurement and control systems are diverse, developed based on different principles of how luminous flux acts on photoelectric elements. According to the nature of the output from the photoelectric element (optical measurement and control system), they can be divided into two categories: analog photoelectric sensors and pulse (switching) photoelectric sensors. Analog photoelectric sensors convert the measured quantity into a continuously changing photocurrent, exhibiting a single-valued relationship with the measured quantity. Based on the method of measuring the target object, analog photoelectric sensors can be classified into three major types: transmissive (absorptive), diffuse reflective, and light-blocking (beam interruption). The transmissive type refers to placing the measured object in the optical path, where light energy emitted by a constant light source passes through the object, is partially absorbed, and the transmitted light projects onto the photoelectric element. The diffuse reflective type refers to light from a constant source projecting onto the measured object, reflecting off its surface, and then projecting onto the photoelectric element. The light-blocking type refers to when part of the luminous flux from the light source is blocked by the measured object, causing a change in the luminous flux reaching the photoelectric element; the degree of change depends on the position of the measured object within the optical path. Photodiodes are the most common type of light sensor. A photodiode has a similar appearance to a standard diode. When there is no illumination, it behaves like a regular diode with very small reverse current, known as the dark current of the photodiode. When illuminated, carriers are excited, generating electron-hole pairs, referred to as photo-generated carriers. Under the influence of an external electric field, these photo-generated carriers participate in conduction, forming a reverse current much larger than the dark current, which is called photocurrent. The magnitude of the photocurrent is proportional to the light intensity, allowing an electrical signal that varies with light intensity to be obtained across the load resistor.

MORA electrical component classification

Printed circuit boards are divided into three major categories based on the number of layers: single-sided boards, double-sided boards, and multi-layer boards. First is the single-sided board. On the most basic PCB, components are concentrated on one side, and traces are concentrated on the other side. Because traces appear only on one side, this kind of PCB is called a single-sided printed circuit board. Single-sided boards are usually simple to manufacture and low in cost, but the disadvantage is that they cannot be applied to too complex products. Double-sided boards are an extension of single-sided boards. When single-layer routing cannot meet the needs of electronic products, double-sided boards must be used. Both sides have copper cladding and traces, and vias can be used to conduct circuits between the two layers, forming the required network connections. Multi-layer boards refer to printed boards formed by laminating more than three conductive graphic layers with insulating materials in between, with the conductive graphics interconnected as required. Multi-layer printed circuit boards are the product of the development of electronic information technology towards high speed, multi-function, large capacity, small volume, thin profile, and lightweight. Printed circuit boards are divided by characteristics into flexible boards (FPC), rigid boards (PCB), and rigid-flex boards (FPCB).

MORA electrical component types

There are many types of loudspeakers. According to their transduction principle, they can be divided into electrodynamic (moving coil), electrostatic (capacitive), electromagnetic (reed), piezoelectric (crystal), etc.; the latter two are mostly used in rural wired broadcasting networks. According to frequency range, they can be divided into low-frequency, mid-frequency, and high-frequency loudspeakers, which are often used as combination loudspeakers in speaker cabinets. According to transduction mechanism and structure, they are divided into moving coil (electrodynamic), capacitive (electrostatic), piezoelectric (crystal or ceramic), electromagnetic (spring-loaded), ionophone, and pneumatic loudspeakers. Electrodynamic loudspeakers have advantages such as good electro-acoustic performance, sturdy structure, and low cost, and are widely used. According to sound radiation material, they are divided into paper cone, horn, and diaphragm types. According to paper cone shape, they are divided into circular, oval, double paper cone, and rubber surround. According to operating frequency, they are divided into bass, midrange, and treble; some are further divided into recorder-specific, TV-specific, general, and hi-fi loudspeakers. According to voice coil impedance, they are divided into low impedance and high impedance. According to effect, they are divided into direct radiation and ambient sound, etc. Loudspeakers are divided into built-in and external loudspeakers, with external loudspeakers generally referring to speaker cabinets. Built-in loudspeakers mean that the MP4 player has built-in speakers, so users can listen to the sound from the MP4 player not only through the headphone jack but also through the built-in speakers. MP5 players with built-in speakers can operate without external speakers and avoid the inconvenience of wearing headphones for long periods.

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