Kondensator (elektr.)
capacitor
Description:
A capacitor stores electrical charge (and thus also electrical energy) and comprises two conducting surfaces separated by a dielectric. The Capacitance of a capacitor describes its ability to store electrical charge. Capacitors are passive components and are used in almost all electronic devices. Areas of application include, for example, smoothing capacitors in Rectifier circuits and intermediate circuit capacitors in inverters. As capacitors can supply relatively high Power for a very short period of time, they are also used in flashguns and for high-voltage capacitor discharge ignition (CDI) in vehicles and defibrillators. In power engineering, capacitors are used to compensate the Reactive power generated by electric motors, transformers and other inductors. The frequency-dependent Resistance of capacitors means that these components can also be used in filter applications, e.g. as crossovers in loudspeakers.
-
Example sentences:
- The capacitance indicates a capacitor's storage capacity.
- The voltage at the capacitor reduces and generates a coil current.
- When , the capacitor is in a charged state (), the coil current is zero.
电容器
Description:
电容器能够存储电荷，因而也存储电能，包括由电介质分隔的两个导电表面。一个电容器的电容量描述了其存储电荷的能力。 电容器是无源元件，用于几乎所有的电子设备。 应用领域包括整流电路滤波电容器和变换器的中间电路电容器。 因为电容器可以在很短的时间内提供相对高的功率，因此也用于车辆和除颤器的闪光灯和高压电容放电点火 （CDI） 装置。电力工程上，电容用于补偿由电动机、变压器等感应器产生的无功功率。 电容器的电阻与频率相关，因此这些组件也可以用于滤波器，如用于扬声器的分频器。