FAMATEL electrical components Germany FAMATEL model FAMATEL price

FAMATEL electrical components are Schottky barrier diodes named after their inventor, Dr. Schottky. Schottky barrier diodes are not made using the principle of forming a PN junction by contact between P-type semiconductor and N-type semiconductor, but rather using the principle of a metal-semiconductor junction formed by contact between metal and semiconductor. Therefore, Schottky barrier diodes are also called metal-semiconductor (contact) diodes or surface barrier diodes; they are a type of hot-carrier diode.

FAMATEL electrical components classification

Ordinary power supplies can be subdivided into: switching power supplies, inverter power supplies, AC voltage-regulated power supplies, DC voltage-regulated power supplies, DC/DC power supplies, communication power supplies, module power supplies, variable-frequency power supplies, UPS power supplies, EPS emergency power supplies, purification power supplies, PC power supplies, rectifier power supplies, custom power supplies, heating power supplies, welding power supplies/arc power supplies, electroplating power supplies, network power supplies, power operation power supplies, adapter power supplies, linear power supplies, power controllers/drivers, power power supplies, other ordinary power supplies, parameter power supplies, voltage-regulating power supplies, transformer power supplies. Special power supplies can be subdivided into: shore power supplies, security power supplies, high-voltage power supplies, medical power supplies, military power supplies, aerospace power supplies, laser power supplies, other special power supplies.

FAMATEL electrical components characteristics

The most important characteristic of a diode is its unidirectional conductivity. In a circuit, current can only flow into the anode of the diode and out of the cathode. 1. Forward characteristics: In electronic circuits, when the anode of the diode is connected to the high-potential terminal and the cathode to the low-potential terminal, the diode will conduct. This connection method is called forward bias. It must be noted that when the forward voltage applied across the diode is very small, the diode still cannot conduct, and the forward current flowing through the diode is very weak. Only when the forward voltage reaches a certain value can the diode truly conduct. After conduction, the voltage across the diode remains basically unchanged, known as the "forward voltage drop" of the diode. 12. Reverse characteristics In electronic circuits, when the anode of the diode is connected to the low-potential terminal and the cathode to the high-potential terminal, almost no current flows through the diode, and the diode is in a cutoff state. This connection method is called reverse bias. When the diode is under reverse bias, a weak reverse current still flows through the diode, known as leakage current. When the reverse voltage across the diode increases to a certain value, the reverse current increases sharply, and the diode loses its unidirectional conductivity characteristic. This state is called diode breakdown. The injection current of a laser diode must be greater than the critical current density to satisfy the population inversion condition and emit laser light. The critical current density is related to the junction temperature and indirectly affects efficiency. During high-temperature operation, the critical current increases, efficiency decreases, and components may even be damaged.

FAMATEL electrical components principle

The basic principle of a multimeter is to use a sensitive magnetoelectric DC ammeter (microammeter) as the meter head. When a tiny current passes through the meter head, there will be a current indication. However, the meter head cannot handle large currents, so resistors must be connected in parallel and series with the meter head for current shunting or voltage dropping, thereby measuring the current, voltage, and resistance in the circuit. The measurement process of a digital multimeter converts the measured quantity into a DC voltage signal via a conversion circuit, then converts the analog voltage into a digital quantity via an analog-to-digital (A/D) converter, then counts via an electronic counter, and finally displays the measurement result directly as numbers on the display screen. The functions of measuring voltage, current, and resistance with a multimeter are realized through the conversion circuit part, while the measurement of current and resistance is based on voltage measurement. In other words, a digital multimeter is expanded from a digital DC voltmeter. The A/D converter of the digital DC voltmeter converts the continuously changing analog voltage over time into a digital quantity, which is then counted by an electronic counter to obtain the measurement result, and the measurement result is displayed by the decoding display circuit. The logic control circuit coordinates the work of the control circuit, completing the entire measurement process in sequence under the action of the clock.

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