Bipolar electrolytic capacitors plugin

The electrolytic capacitor in a circuit, the filtering effect, in the power circuit, the rectifier circuit of the AC into pulsating direct current, and rectifier circuit after connecting a large-capacity electrolytic capacitor using the charge and discharge characteristics, the rectification After the pulsating DC voltage becomes relatively stable DC voltage. In practice, in order to prevent the various parts of the supply voltage circuit due to load changes produce changes, so the power input terminal and the output terminal of the power load is generally connected with the electrolytic capacitor tens to hundreds of microfarads. Since large-capacity electrolytic capacitors generally have certain inductance, high frequency and pulse interference signal can not effectively filter out, so at both ends in parallel with a capacity of 0.01--0.lpF the capacitor to filter out high frequency and pulse interference. Load Capacitance: refers to quartz crystal resonators together determine the effective external capacitance load resonant frequency. Commonly used standard load capacitance values ??are 16pF, 20pF, 30pF, 50pF and 10pF. Load capacitance can be appropriately adjusted according to the specific circumstances, generally by adjusting the operating frequency of the resonator is adjusted to the nominal value. Tuning capacitors: resonance across the coil is connected to the oscillation circuit, the oscillation frequency of choice to play the role. Pad capacitance: main capacitor in series with the resonant circuit auxiliary capacitor, it can adjust the oscillation signal frequency range is small, and can significantly increase the oscillation frequency of the low frequency end. Electrolytic capacitors generally have positive and negative points, namely having a polarity. Therefore, when using the circuit in the positive and negative can not be wrong. You can now have manufacturing non-polar electrolytic capacitor or for AC circuits, called bipolar electrolytic capacitor or non-polar electrolytic capacitors. Under the influence of the applied voltage, for some reason caused partial damage to the device, with its own role in repair, this phenomenon is called self-healing electrolytic capacitors. Electrolytic capacitors are generally used only in the range of -20 ℃ ~ + 70 ℃ of. Greatly affected by temperature characteristics, frequency. Are aluminum electrolytic capacitors generally often used. Type aluminum electrolytic capacitors are generally CDXX, capacity, pressure, both positive and negative mark on the housing. Sometimes used to indicate the length of the lead, the long-term is positive, short-term negative. Loss of large aluminum electrolytic capacitors, temperature, frequency difference, limits the application of the AC circuit