compro electrical components Germany compro model compro price

compro electrical components are active-matrix liquid crystal displays driven by thin-film transistors. They primarily use current to stimulate liquid crystal molecules to generate points, lines, and planes, which combine with backlights to form images. IPS, TFT, and SLCD are all subclasses of LCD. Their operating principle is that, under the influence of an electric field, the alignment direction of liquid crystal molecules changes, altering the transmittance (modulation) of external light sources to complete electro-optical conversion. Then, using different excitations of the R, G, and B primary color signals through red, green, and blue primary color filter films, color reproduction in the time and space domains is completed.

compro electrical component principle

It mainly consists of an LC circuit composed of capacitors and inductors, generating free oscillation through the mutual conversion of electric field energy and magnetic field energy. To maintain oscillation, an amplifier circuit with positive feedback is required. LC oscillators are further divided into transformer-coupled and three-point oscillators. Many applications use quartz crystal oscillators, and there are also LC oscillators composed of integrated operational amplifiers. Since component parameters cannot be completely identical, the states of the two transistors change at the moment of power-on. This change becomes increasingly intense due to positive feedback, leading to a quasi-stable state. During the quasi-stable state, the other transistor gradually charges through the capacitor and then conducts or cuts off, causing the state to flip to another quasi-stable state. This cycle repeats to form oscillation.

compro electrical component function

The self-induced electromotive force in an inductor coil always opposes changes in the current within the coil. Inductor coils impede alternating current; the magnitude of this impedance is called inductive reactance xl, measured in ohms. Its relationship with inductance l and AC frequency f is xl=2πfl. Inductors are mainly classified into high-frequency choke coils and low-frequency choke coils. An inductor coil connected in parallel with a capacitor can form an lc tuned circuit. That is, when the natural oscillation frequency f0 of the circuit equals the frequency f of the non-AC signal, the inductive reactance and capacitive reactance of the loop are equal. Consequently, electromagnetic energy oscillates back and forth between the inductor and capacitor; this is the resonance phenomenon of the lc circuit. At resonance, the inductive and capacitive reactances are equal in magnitude but opposite in direction. The total inductive reactance of the loop is minimal, and the current is maximal (referring to AC signals where f="f8"). The lc resonant circuit has a frequency selection function, capable of selecting AC signals of a specific frequency f.

compro electrical component features

Solid-state relays are contactless electronic switches with isolation functionality. There are no mechanical contact parts during switching. Therefore, in addition to having the same functions as electromagnetic relays, solid-state relays offer logic circuit compatibility, resistance to vibration and mechanical shock, unrestricted installation positions, good moisture-proof, mold-proof, and corrosion-resistant performance, and excellent performance in explosion-proofing and preventing ozone pollution. They feature low input power, high sensitivity, low control power, good electromagnetic compatibility, low noise, and high operating frequency. Solid-state relays have no internal mechanical parts and adopt a potting fully sealed structure, providing advantages such as vibration resistance, corrosion resistance, long life, and high reliability. AC solid-state relays use zero-crossing triggering technology, resulting in short switching times, making them suitable for higher-frequency applications. Optical isolation is used between the input and output circuits, resulting in very low input power consumption. The output terminal has a protection circuit and strong load capacity.

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