sonlux electrical components Germany sonlux model sonlux price

sonlux electrical components are a new type of contactless switching device composed entirely of solid-state electronic components. It utilizes the switching characteristics of electronic components (such as switching transistors, triacs, and other semiconductor devices) to achieve contactless, spark-free circuit connection and disconnection, hence it is also called a "contactless switch." A solid-state relay is a four-terminal active device, where two terminals are input control terminals and the other two are output controlled terminals. It has both amplification drive and isolation functions, making it very suitable for driving high-power switching actuators. Compared to electromagnetic relays, it offers higher reliability, is contactless, has a long service life, fast speed, and low external interference, and has been widely applied [1].

sonlux electrical components classification

Printed circuit boards are classified 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, where components are concentrated on one side of the basic PCB, and conductors are concentrated on the other side. Because conductors appear only on one side, this type of PCB is called a single-sided printed circuit board. Single-sided boards are typically simple to manufacture and low in cost, but their disadvantage is that they cannot be used for overly 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 connect circuits between the two layers, forming the required network connections. Multi-layer boards refer to printed boards with more than three conductive graphic layers separated by insulating materials through lamination, with interconnections between conductive graphics 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. Based on characteristics, printed circuit boards are classified into flexible boards (FPC), rigid boards (PCB), and rigid-flex boards (FPCB).

sonlux electrical components applications

The main application of rectifiers is to convert AC power to DC power. Since all electronic devices require DC, but utility power supply is AC, rectifiers are indispensable inside the power supplies of all electronic devices unless batteries are used. Converting DC voltage is much more complex. One method of DC-DC conversion is to first convert the power to AC (using a device called an inverter), then use a transformer to change the AC voltage, and finally rectify it back to DC power. Rectifiers are also used for demodulation of AM radio signals. The signal may be amplified (increasing the signal amplitude) before demodulation; if not amplified, diodes with very low voltage drop must be used. When using rectifiers for demodulation, capacitors and load resistors must be carefully matched. If the capacitance is too small, excessive high-frequency components will pass through; if too large, the signal will be suppressed. Rectifier devices are also used to provide fixed-polarity voltage required for electric welding. Sometimes the output current of such circuits needs to be controlled; in this case, thyristors (a type of silicon-controlled rectifier) replace the diodes in bridge rectifiers, and phase control triggering is used to adjust the voltage output. Thyristors are also used in various railway locomotive systems to achieve fine tuning of traction motors.

sonlux electrical components principle

Its operating principle is the same as that of a transformer, with a basic structure consisting of an iron core and primary and secondary windings. It is characterized by a very small and relatively constant capacity, operating close to no-load conditions during normal operation. The impedance of the voltage transformer itself is very small; once a short circuit occurs on the secondary side, the current will increase sharply and burn out the windings. For this reason, fuses are connected to the primary side of the voltage transformer, and the secondary side is reliably grounded to prevent high potential to ground on the secondary side in case of insulation failure between the primary and secondary sides, which could cause personal injury and equipment accidents. Voltage transformers for measurement are generally made with a single-phase, two-winding structure. The primary voltage is the voltage to be measured (such as the line voltage in a power system). They can be used in single phase, or two units can be connected in a V-V configuration for three-phase use. Voltage transformers used in laboratories often have multiple taps on the primary side to accommodate the need to measure different voltages. Voltage transformers for protective grounding also include a third winding, known as a three-winding voltage transformer. The third windings of the three phases are connected in an open-delta configuration. The two output terminals of the open delta are connected to the voltage coil of the ground protection relay. During normal operation, the three-phase voltages of the power system are symmetrical, and the sum of the three-phase induced electromotive forces on the third winding is zero. Once a single-phase ground fault occurs, neutral point displacement occurs, and zero-sequence voltage appears between the terminals of the open delta, causing the relay to operate and thus protecting the power system. When zero-sequence voltage appears in the windings, corresponding zero-sequence flux appears in the iron core. Therefore, this type of three-phase voltage transformer uses a side-yoke iron core or employs three single-phase voltage transformers. For this type of transformer, the accuracy requirement for the third winding is not high, but it requires certain over-excitation characteristics (i.e., when the primary voltage increases, the magnetic flux density in the iron core increases by a corresponding factor without damage). Voltage transformers are indispensable electrical devices in power transmission and supply systems such as power plants and substations. Precision voltage transformers are instruments used in electrical testing laboratories to extend measurement ranges and measure voltage, power, and energy. Voltage transformers are very similar to transformers, as both are used to transform voltage on lines. Why is voltage transformation needed on lines? This is because, depending on the different conditions of power generation, transmission, and consumption, the voltage levels on lines vary significantly. Some are low voltages such as 220V and 389V, while others are high voltages of tens of thousands or even hundreds of thousands of volts. To directly measure these low and high voltages, corresponding low-voltage and high-voltage voltmeters and other instruments and relays would need to be manufactured according to the line voltage levels. This would not only create significant difficulties in instrument manufacturing, but more importantly, it is impossible and absolutely prohibited to directly manufacture high-voltage instruments and measure voltage directly on high-voltage lines.

Weidou Intelligent Technology professionally sells German sonlux connectors, sonlux switches, sonlux relays, sonlux controllers, sonlux plugs, sonlux sensors, sonlux resistors, sonlux capacitors, sonlux buses, sonlux modules, sonlux cables, sonlux power supplies, sonlux interfaces, sonlux gateways, sonlux circuit breakers, sonlux original imports from Germany. Welcome customers to inquire and order.