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Capacitance of the Q value, how much do you know?
by：Shenmao
2020-11-24
驻做射此时改称,选举择电触电容时特别关注其他们的q,等于那什麽是q值呢?
Q what is the meaning, why is it important?
Quality factor Q: characterization of an energy storage device (
如电感线圈、电容等)
,谐振电路所储能量该每周损耗功能量之比的一种质量指标。
前件的q值愈大,用该元件组成的电路或网路选举择性愈佳。
Or Q = / active power reactive power, or the ratio of the characteristic impedance and the loop resistance.
The higher the Q value, the smaller the loss, the higher the efficiency;
Q value is higher, the higher the frequency stability of resonator, therefore, can be more accurate.
Defines the quality factor of capacitance, Q value, also is the capacitance of the storage power loss and power than: Qc = (
1/ωC)
/ esrq值对高宽带电容是比较重要的参数。
The reciprocal of Q value is equal to the D value.
损失角即d等于:一般电解电容器因为内阻较大故d值较高,其规格视电容等于高低决定,造作。
1 -
0.
24 the following.
塑胶薄膜电容器则d值较低,视其材质决定为。
001 -
0.
The following 01.
陶瓷电容器视其材质决定,hi-
k type及s / c type为。
025 the following.
T/C type, its specification to Q value is said to be higher than 400 -
1000.
Note: XC = -
j/(
2πfC)
；
XL=j(
2πfL)
根据损耗因可数d的定义:d = 1 / q = r / | x | & gt;
0 to plug in the previous formula, get: if leakage between electrodes can be ignored, that is, the impedance of the Rp infinity (
Or is far greater than the impedance of the relative to the capacitance value of C)
计算公式,损耗因可数d大大简化为:我们信号频率远远小归于srf谐振此时率,则x c & gt;>
X L, namely X L can be ignored, it further simplify the formula mentioned above: the figure shown, the capacitor lead inductance would reduce with the increase of frequency and the characteristics of the capacitor.
我们引线电感与实时,电容器的电容谐振这将会产串联谐振生一个,使日本内阁总理电抗趋向为w。
As a result of this series resonance to create a very small series impedance, so it is suitable for applications in the radio frequency circuit of coupling and decoupling circuit.
然而,当电路工作此时率高于串友联谐振此时率时,该电容器将表现为电感性文字是电容性。
At a time when technology is essential for electrolytic capacitor, ensuring that it works in a symbiotic way with your human employees is key.
During Shenzhen Shen MaoXin Electronics Co., Ltd.’s existence in a market we didn’t receive any negative feedback from our customers.
Long gone are those days when electrolytic capacitor suppliers were used to electrolytic capacitor suppliers. Now new like electrolytic capacitor suppliers electrolytic capacitor have come up.
At a time when technology is essential for electrolytic capacitor, ensuring that it works in a symbiotic way with your human employees is key.
During Shenzhen Shen MaoXin Electronics Co., Ltd.’s existence in a market we didn’t receive any negative feedback from our customers.
Long gone are those days when electrolytic capacitor suppliers were used to electrolytic capacitor suppliers. Now new like electrolytic capacitor suppliers electrolytic capacitor have come up.
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