SMiLer is the strong brand enterprise of metallized film capacitors integrating R&D, production and sales.The main products: motor capacitor,capacitor manufacturer,fan capacitor.

Capacitor filter

by:SMiLer     2021-01-26
One end of the electrolytic capacitor anode, and the other end of the cathode, can't come. Is extreme connected to the output rectifier circuit is end, anode the negative terminal of the circuit connection. In all of the need to convert alternating current to direct current circuit, set the filter capacitor can make electronic circuit performance more stable, but also reduces the alternating pulse wave disturbance to the electronic circuit. Filter capacitance in a circuit the symbols in general with 'C', says should be according to the load resistance and capacitance output current to determine the size. The higher power supply voltage U, the greater the capacitance of electric charge q. When the filter capacitor after reaching a certain capacity, it will increase the capacitance of other some harmful effects. Filter capacitor is parallel in the rectifier circuit output power supply, to reduce ac pulse ripple coefficient, smooth dc output of a storage device. In using converts ac to dc power supply of electronic circuit, filter capacitance smooth dc output power stability, not only reduce the effects of the alternating current ripple of electronic circuit, and can also absorb the working process of the electronic circuit of current fluctuations and through a series with the ac power interference, makes the work performance of the circuit is more stable in order to obtain good filtering effect, capacitor discharge must be slow, the slower capacitance discharge, output voltage, the more smooth, filtering effect is better. And capacitor discharge speed related to the load capacity of the capacitance C and R, C, and R, the greater the capacitance discharge is slower. At the same time, choose the filter capacitor filter circuit of capacitance is large, the most commonly used for hundreds or thousands of micro method of electrolytic capacitors, demanding situations also has use of tantalum or niobium capacitor; But in the higher frequencies, even with a few thousand Hertz to the requirement of frequency characteristic is much more important than capacity requirements. Capacitance filtering function after filter capacitance effects in short is to make the output voltage of stable dc voltage, its working principle is rectifier voltage higher than that of capacitance voltage capacitor charging, when rectifying voltage is lower than the capacitor voltage capacitor discharge, in the process of charging and discharging, make the output voltage stable. Filter capacitance is large capacity, so usually use electrolytic capacitor, when wiring to pay attention to the positive and negative of electrolytic capacitors. Capacitor filter circuit using capacitor charge and discharge process, make the output voltage tends to be smooth. Capacitance filtering effect refers to the filter capacitor filter capacitor in the power rectifier circuit, is used to filter out communication components, reduce the exchange fluctuation coefficient of corrugated, make the output dc smoother. Because there are larger capacitance for energy storage capacitor filter circuit, the vast majority of use electrolytic capacitor filter circuit. Electrolytic capacitors because of its using electrolyte as electrode ( Cathode) The name, one end of the electrolytic capacitor anode, the other end of the cathode, can't meet the. Low frequency filter capacitor is mainly used for mains filter or filter after the transformer rectifier, their work is consistent with the mains frequency is 50 hz; And main work in the switch power supply high frequency filter capacitance filter after the rectification, the working frequency of several thousand Hz for tens of thousands of Hz. Filter capacitor plays a very important role in switching power supply. Commonly used filter circuit for source filter and active filter two kinds big, capacitor filter for passive filter, filter capacitance effects in short is to make the output voltage after filtering for steady dc voltage, its working principle is rectifier voltage higher than that of capacitance voltage capacitor charging, when rectifying voltage is lower than the capacitor voltage capacitor discharge, in the process of charging and discharging, make the output voltage stable. Filter capacitance is large capacity, so usually use electrolytic capacitor, when wiring to pay attention to the positive and negative of electrolytic capacitors. Capacitor filter circuit using capacitor charge and discharge process, make the output voltage tends to be smooth. The main form of passive filter capacitor filter, inductor filter and compound filter ( Pour L, LC filter, LC PI type filter and RC PI type filter, etc. ) The main form of active filter is active RC filter, also known as electronic filter.
Competitiveness policy of SMILer Electornic Industrial Co., Ltd. is about existing clusters as a platform for upgrading microeconomic fundamentals, where structural policies aim to change the industrial composition of an economy more directly.
Satisfying our customers with the appropriate level of quality is a primary goal and a fundamental element as ac motor capacitor of our business mission.
With the market analysts, exports from SMILer Electornic Industrial Co., Ltd. facilities in China will surpass the forecast.
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