Scharnberger + Hasenbein electrical components Germany Scharnberger + Hasenbein models Scharnberger + Hasenbein prices

Scharnberger + Hasenbein electrical components are devices that convert alternating current into direct current, and can be used in power supply units and for detecting radio signals, among other applications. Rectifiers can be made from vacuum tubes, ignitrons, solid-state silicon semiconductor diodes, mercury arcs, etc. Conversely, a device that converts direct current into alternating current is called an "inverter". In standby UPS systems, only battery charging is required, not power supply to the load, so there is only a charger. In double-conversion UPS systems, this device supplies power to the inverter and also charges the battery, hence it is called a rectifier/charger. A rectifier is a rectification device; simply put, it is a device that converts AC to DC. It has two main functions: first, to convert alternating current into direct current, which is then filtered and supplied to the load or to the inverter; second, to provide charging voltage to the battery. Therefore, it also serves as a charger.

Scharnberger + Hasenbein electrical component classification

For most conductors, at a certain temperature, their resistance remains almost constant at a fixed value; such resistors are called linear resistors. The resistance of some materials changes significantly with current (or voltage), and their volt-ampere characteristic is a curve; such resistors are called nonlinear resistors. For a nonlinear resistor under a given voltage (or current), the ratio of voltage to current is the static resistance at that operating point, and the slope of the volt-ampere characteristic curve is the dynamic resistance. The methods for expressing nonlinear resistor characteristics are relatively complex, but these nonlinear relationships are widely applied in electronic circuits.

Scharnberger + Hasenbein electrical component structure

Common electrodynamic cone paper loudspeakers. Electrodynamic cone loudspeakers were formerly commonly referred to as paper cone loudspeakers. Although the diaphragm is still primarily a paper cone, many polymer material diaphragms and metal diaphragms have appeared, making the term cone loudspeaker more accurate. Cone paper loudspeakers generally consist of three main parts: the magnetic circuit system (permanent magnet, core pole, magnetic plate), the vibration system (paper cone, voice coil), and the support auxiliary system (spider, basket, surround). 1. Voice coil: The voice coil is the drive unit of the cone paper loudspeaker. It is made by winding very fine copper wire in two layers around a paper tube, typically with dozens of turns, also known as a coil, and is placed in the magnetic gap formed by the magnetic core pole and the magnetic plate. The voice coil is fixed to the paper cone. When an audio current signal is passed through the voice coil, the vibration of the voice coil drives the vibration of the paper cone. 2. Paper cone: There are many types of materials used for the cone diaphragm of cone paper loudspeakers, generally divided into two categories: natural fibers and synthetic fibers. Natural fibers often include cotton, wood, wool, silk, etc., while synthetic fibers include rayon, nylon, fiberglass, etc. Since the paper cone is the sound radiation element of the loudspeaker, it largely determines the acoustic performance of the loudspeaker. Therefore, regardless of the type of paper cone, it must be lightweight and have good rigidity, and must not deform due to changes in ambient temperature or humidity. 3. Surround: The surround is designed to ensure axial movement of the paper cone along the loudspeaker axis and restrict lateral movement, while also preventing air flow between the front and rear of the paper cone. In addition to materials commonly used for paper cones, surrounds may use plastics, natural rubber, etc., which are thermally bonded to the paper cone. 12. Spider: The spider is used to support the junction of the voice coil and the paper cone, ensuring it remains vertical and not skewed. The spider has many concentric rings, allowing the voice coil to move freely up and down in the magnetic gap without lateral movement, ensuring the voice coil does not touch the magnetic plate. The dust cap on the spider prevents external dust from entering the magnetic gap, avoiding friction between dust and the voice coil, which could cause abnormal sounds from the loudspeaker. Generally, a loudspeaker consists of a magnet, frame, spider, molded surround, and cone paper cone.

Scharnberger + Hasenbein electrical component functions

Antennas radiate radio waves and also receive radio waves. However, what the transmitter sends to the antenna via the feed line is not radio waves, nor can the receiving antenna directly send radio waves to the receiver via the feed line; an energy conversion process must occur in between. Below, we analyze the signal transmission process using radio communication equipment as an example to illustrate the energy conversion role of antennas. At the transmitting end, the modulated high-frequency oscillating current (energy) generated by the transmitter is input to the transmitting antenna via feeding equipment (the feeding equipment can directly transmit current waves or electromagnetic waves depending on frequency and form). The transmitting antenna converts the high-frequency current or guided wave (energy) into radio waves—free electromagnetic waves (energy)—radiating them into the surrounding space. At the receiving end, radio waves (energy) are converted by the receiving antenna into high-frequency current or guided wave (energy), which is transmitted to the receiver via feeding equipment. From the above process, it can be seen that the antenna is not only a device for radiating and receiving radio waves, but also an energy converter, serving as the interface device between the circuit and space.

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