honsel electrical components Germany honsel model honsel price

honsel electrical component is a high-power electrical component, also known as a thyristor. It has the advantages of small size, high efficiency, and long service life. In automatic control systems, it can serve as a high-power drive device, enabling low-power control elements to control high-power equipment. It is widely used in AC/DC motor speed control systems, power regulation systems, and servo systems. Thyristors are divided into unidirectional thyristors and bidirectional thyristors. Bidirectional thyristors are also called triac bidirectional thyristors, abbreviated as TRIAC. Structurally, a bidirectional thyristor is equivalent to two unidirectional thyristors connected in reverse; this thyristor has bidirectional conduction capability. Its on/off state is determined by the gate G. Applying a positive pulse (or negative pulse) to the gate G enables forward (or reverse) conduction. The advantages of this device include a simple control circuit and no reverse voltage withstand issue, making it particularly suitable for use as an AC contactless switch.

honsel electrical component features

Most microphones are electret condenser microphones (ECM), a technology with a history of several decades. The working principle of ECM utilizes a polymer diaphragm with permanently isolated charge. Compared to the polymer diaphragm of ECM, MEMS microphones exhibit stable performance across different temperatures and are unaffected by temperature, vibration, humidity, and time. Due to strong heat resistance, MEMS microphones can withstand high-temperature reflow soldering without any change in performance. Since the sensitivity change before and after assembly is minimal, this can even save audio debugging costs during the manufacturing process. Currently, integrated circuit processes are increasingly applied in the manufacturing of sensors and sensor interface integrated circuits. This microfabrication process offers advantages such as precision, design flexibility, miniaturization, integration with signal processing circuits, low cost, and mass production. A fundamental resonant frequency in such a low frequency range would result in highly uneven frequency response within the audible frequency range, which is unacceptable for microphone applications. When tensile stress exists within the sensitive membrane, its resonant frequency increases, but at the expense of sensitivity. Of course, higher fundamental resonant frequencies can be achieved by adjusting the dimensions of the sensitive membrane, but this will still reduce sensitivity. Thus, piezoresistive solutions are not suitable for the manufacture of miniature microphones. A viable solution is to adopt a capacitive approach for manufacturing miniature microphones. The advantage of this method is that all materials used in integrated circuit manufacturing processes can be utilized for sensor fabrication. However, manufacturing micro-microphones using single-chip processes is quite difficult because the air medium between the two capacitor plates can only have a very small gap. Moreover, due to size limitations, bias voltage is difficult to satisfy in some application scenarios. Due to these issues, research on capacitive microphones has continued uninterrupted. Compared to traditional electret microphones, micro-electromechanical system (MEMS) microphones offer advantages such as small size, good heat resistance, good consistency, good stability, high reliability, and resistance to radio frequency interference. They can also output digital signals, facilitating intelligent development.

honsel electrical component principle

A circuit breaker generally consists of a contact system, arc extinguishing system, operating mechanism, trip unit, and housing. During a short circuit, the magnetic field generated by the high current overcomes the reaction spring force, causing the trip unit to pull the operating mechanism and instantly trip the switch. During overload, the current increases, intensifying heat generation; the bimetallic strip deforms to a certain extent to trigger the mechanism (the higher the current, the shorter the action time). Electronic types use current transformers to collect phase current magnitudes, compare them with set values, and when current anomalies occur, the microprocessor sends a signal to activate the electronic trip unit, which drives the operating mechanism. The function of a circuit breaker is to connect and disconnect load circuits, as well as to interrupt fault circuits, preventing accident escalation and ensuring safe operation. Arc extinguishing is a critical issue for high-voltage circuit breakers. The principle of blow-out arc extinguishing mainly involves cooling the arc to weaken thermal ionization, while simultaneously elongating the arc through blowing to enhance the recombination and diffusion of charged particles, dispersing charged particles from the arc gap to rapidly restore the insulation strength of the medium. Low-voltage circuit breakers, also known as automatic air switches, can be used to connect and disconnect load circuits and control motors that do not start frequently. Their functionality equates to the sum of partial or complete functions of electrical components such as knife switches, overcurrent relays, undervoltage relays, thermal relays, and residual current protective devices, making them important protective appliances in low-voltage distribution networks. Low-voltage circuit breakers feature multiple protection functions (overload, short circuit, undervoltage protection, etc.), adjustable action values, high breaking capacity, ease of operation, and safety, leading to their widespread application. Structure and working principle: Low-voltage circuit breakers consist of an operating mechanism, contacts, protection devices (various trip units), and an arc extinguishing system. The main contacts of a low-voltage circuit breaker are closed via manual operation or electric closing. After the main contacts close, the free-trip mechanism locks them in the closed position. The coil of the overcurrent trip unit and the heating element of the thermal trip unit are connected in series with the main circuit, while the coil of the undervoltage trip unit is connected in parallel with the power supply. When a short circuit or severe overload occurs in the circuit, the armature of the overcurrent trip unit attracts, causing the free-trip mechanism to act and the main contacts to disconnect the main circuit. When the circuit is overloaded, the heating element of the thermal trip unit heats up, causing the bimetallic strip to bend and push the free-trip mechanism into action. When the circuit experiences undervoltage, the armature of the undervoltage trip unit releases, also causing the free-trip mechanism to act. The shunt trip unit is used for remote control; during normal operation, its coil is de-energized. When remote control is required, pressing the start button energizes the coil.

honsel electrical component classification

1, fuse resistors: Also known as fusible resistors, they serve the dual function of a resistor and a fuse under normal conditions. When a circuit fault causes their power to exceed the rated power, they fuse like a fuse wire, disconnecting the connected circuit. Fuse resistors generally have low resistance values and low power ratings. 11, sensitive resistors: These refer to resistors whose resistance values are sensitive to certain physical quantities (such as temperature, humidity, light intensity, voltage, mechanical force, and gas concentration). When these physical quantities change, the resistance value of the sensitive resistor changes accordingly, presenting different resistance values. Based on sensitivity to different physical quantities, sensitive resistors can be classified into thermistors, humidity-sensitive resistors, photoresistors, varistors, force-sensitive resistors, magnetosensitive resistors, and gas-sensitive resistors. The materials used for sensitive resistors are almost exclusively semiconductors, so these resistors are also called semiconductor resistors. The resistance of a thermistor changes with temperature; if the resistance decreases as temperature rises, it is a negative temperature coefficient (NTC) thermistor. NTC thermistors are widely used and can be further divided into general-purpose NTC thermistors, voltage-stabilizing NTC thermistors, and temperature-measuring NTC thermistors. The resistance of a photoresistor changes with the intensity of incident light; when incident light increases, the resistance of the photoresistor decreases, and when incident light weakens, the resistance value increases.

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