As electronics of high frequency, high speed, and the rapid development of integrated circuit technology, electronic components for the big increase in the total power density and the physical size is smaller and smaller, the heat flux density also will increase, so the temperature of the high temperature environment is bound to affect the performance …
Summary of heat dissipation methods of electronic components Read More »
Wireless lapel microphone, a type of wireless microphone, has become popular recently. It is a small, small and portable microphone, usually worn in the location of the user's clothing lapel. It can be freed from the cable, and the user can do whatever he or she wants without worrying about the sound. It is generally …
4. Fixed resistance detection The actual resistance value can be measured by connecting the two gauges (regardless of positive or negative) with the pins at both ends of the resistance. In order to improve the measurement accuracy, the appropriate range should be selected according to the size of the nominal value of the resistance to …
The main parameters of transformer are voltage ratio, rated power, frequency characteristics, efficiency and so on. (1) Voltage ratio (n) is the relationship between the number of turns of primary (primary) and secondary (secondary) windings and voltage: n=V1/V2=N1/N2, the voltage ratio of boost transformer is less than 1, the voltage ratio of step-down transformer is …
2. Basic parameters of the diode The basic parameters of the diode mainly include the maximum average rectifier current, the highest reverse operating voltage, reverse current and the highest operating frequency. (1) Maximum average rectifier current IF (AV) Maximum average rectifier current refers to the maximum forward average current allowed to pass through the diode …
Understanding of three-terminal regulator tube The function of the three-terminal regulator is to buck the voltage and output it at a fixed value. Security electronic products in the common three-terminal regulator tube has positive voltage output 78 series and negative voltage output 79 series. The three-terminal regulator, as its name implies, has only three pins, …
Solid-state relay is a new type of contactless electronic switch developed by combining modern micro-electronic technology with power electronic technology. In logic control circuit, with electromagnetic relay function similar, under the control of trigger signal, to achieve the purpose of weak control strong and weak strong isolation. Solid state relay has the advantages of safe …
Ferrosilicon aluminum magnetic ring Characteristics of iron silicon aluminum magnetic ring: lower loss than iron powder core, good DC bias characteristics, the cost is between iron powder core and iron nickel molybdenum, material permeability (μ) respectively: 26, 60, 75, 90, 125 iron silicon aluminum standard color is black. Iron powder core magnetic ring Iron powder …
Resistance is an ordinary component, but there is an unusual way, in doing electronic design for nearly ten years today, I this small electrician just realized some way, here to share with you. There are many parameters of resistance, usually we generally pay attention to value, accuracy, amount of power, these three indicators are appropriate. …
Resistance secrets - Resistance parameters you must know Read More »
Aluminum Capacitors are an extremely popular choice in the electronics industry due to their stable performance, low cost, and wide selection. However, do you know everything about them? What are Aluminum Capacitors? Aluminum capacitors are a type of capacitor used in electronics. They are made of aluminum and can be used in place of other …
