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What Are The Common Effects Of Metal Film Capacitors?

Dongguan Weiqing Electronics Co.,Ltd | Updated: Feb 20, 2019
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Metal film capacitors are well known and familiar, but are the common effects of metal film capacitors clear? I will introduce it to you today.


1. Coupling: The capacitor used in the coupling circuit is called the coupling capacitor. In the RC coupling and other capacitive coupling circuits, this kind of capacitor circuit is widely used to separate the DC-connected AC.


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快三怎么看长龙还是短龙2 the filter: the metal film capacitor used in the filter circuit is called the filter capacitor. This capacitor circuit is used in the power supply filter and various filter circuits. The filter capacitor removes the signal in a certain frequency band from the total signal.


快三怎么看长龙还是短龙3: The metal film capacitor used in the decoupling circuit is called decoupling capacitor. This capacitor circuit is used in the DC voltage supply circuit of the multistage amplifier. The decoupling capacitor eliminates the harmful low frequency between each amplifier. even.


4. High-frequency vibration reduction: The capacitor used in the high-frequency vibration-damping circuit is called the high-frequency vibration-absorbing capacitor. In the audio negative feedback amplifier, in order to eliminate the high-frequency self-excitation that may occur, this capacitor circuit is used. Eliminate high frequency howling that may occur with the amplifier.


5. Resonance: The metal film capacitor used in the LC resonant circuit is called a resonant capacitor. This capacitor circuit is required in both LC parallel and series resonant circuits.


快三怎么看长龙还是短龙6. Bypass: The metal film capacitor used in the bypass circuit is called bypass capacitor. If you need to remove the signal of a certain frequency band from the signal, you can use the bypass capacitor circuit. According to the frequency of the removed signal, there are Full frequency domain (all AC signals) bypass capacitor circuit and high frequency bypass capacitor circuit.


7. Neutralization: The metal film capacitor used in the neutralization circuit is called the neutralization capacitor. In radio high frequency and intermediate frequency amplifiers, TV high frequency amplifiers, this neutralization capacitor circuit is used to eliminate self-excitation.


8. Timing: The metal film capacitor used in the timing circuit is called the timing capacitor. A timing capacitor circuit is used in a circuit that requires time control by capacitor charging and discharging, and the capacitor controls the magnitude of the time constant.


9, integral: The metal film capacitor used in the integration circuit is called the integral capacitor. In the synchronous separation circuit for scanning the potential field, the field synchronization signal can be taken out from the field composite synchronization signal by using such an integrating capacitance circuit.


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