When purchasing avariable frequency series resonant device (also known as a series resonant device), we are often asked what the Q value is. So what is the Q value here? What kind of influence does it have on the Q value of the variable frequency series resonant device? Is it better to be taller?
What is Q value?
The Q value is influenced by external factors such as voltage level, process structure, material characteristics, etc. In theory, the larger the Q value, the smaller the allowable deviation current per unit frequency, and the higher the frequency selectivity. The Q value is the main parameter used to measure inductance, and its calculation formula is: Q=energy storage devices such as inductance and capacitance ÷ power loss resistance.
Variable frequency series resonant device
What factors affect the Q value of the variable frequency series resonant device by students?
The magnitude of the Q value is influenced by various factors, such as our manufacturing technology, raw materials, and material properties. For example, if the other relevant parameters of the enterprise remain unchanged and only the thickness of the wound inductance wire is changed, the Q value of the inductance wire with thicker wire will be higher than that of the inductance wire with thinner wire. If students silver plate the wire, the inductance wound with silver plated wire will have a higher Q value than that wound with non silver plated wire. It is obvious that this is the influence of Chinese process design structure and raw materials on the Q value of the knowledge series resonance test detection device, The higher the Q value, the smaller the loss of the circuit, and the higher the efficiency of the circuit. The quality and efficiency of the company's products can also be simply judged by the size of the Q value. However, it is not up to oneself to decide whether to use series resonance control devices to develop quality management. The improvement of Q value is often limited by some important social factors, such as the DC resistance of the wire, the dielectric loss of the coil skeleton, the loss caused by the iron core and shielding effect, and the skin effect during high-frequency information operation.
Is a higher Q value better?
Do we measure the Q value when purchasing a variable frequency series resonance testing device? In fact, for customer information that students may not need to know much about, they may think that "high Q value means good product". Q value is only a conceptual reference for China, and it cannot represent the factors that affect the performance or have no absolute importance. For example, if the Q value is too large, it may cause phenomena such as inductor burnout, capacitor breakdown, circuit oscillation, etc. Some countries' technology companies have very good types of products, materials and processes, but they may find ways to reduce the Q value. Therefore, Q value is only a quality factor to measure the efficiency of inductors.
