Use drive repair electrolytic capacitors note 1, because the polarity of electrolytic capacitors, and therefore can not be reversed in the circuit connection use. In the power supply circuit, the output voltage is positive then the positive power output of electrolytic capacitors, negative ground atv71 drive repair, the anode connected to the output, the output negative voltage positive ground. When the power supply filter capacitor circuit in reverse polarity, because of the filtering effect of greatly reduced capacitance, while causing the power supply output voltage fluctuation, on the other hand because of the reverse energized to make this point is equivalent to a heat resistance of the electrolytic capacitor. When the reverse voltage exceeds a certain value, the reverse leakage resistance and capacitance will become very small, so energized to work soon, so that the capacitor can overheat and burst damage. 2. Applied to both ends of the electrolytic capacitor voltage can not exceed the allowable operating voltage, in the actual circuit design should leave a margin depending on the circumstances, in the design of power supply filter capacitor, if the AC mains voltage 220 to the transformer secondary rectified voltage level up to 22V, this time selecting the electrolytic capacitor voltage is 25V generally meet the requirements. However, if the AC power supply voltage fluctuations are large and there is likely to rise to more than 250V, the best choice for the electrolytic capacitor voltage above 30V. 3, electrolytic capacitors in the circuit should be close to power the heating element saj inverter repair, to prevent heat leaving the electrolyte to accelerate dry. 4, for positive and negative polarity signal filtering, can take two electrolytic capacitors in series with the polar method, as a non-polar capacitor. Drive repair what is "varistor" "varistor is a noun in mainland China n310 inverter repair, which means" within a certain range of resistance values ??of current and voltage with the voltage change, "or that" the resistance value of the voltage-sensitive "The resistor corresponding English name is" Voltage Dependent Resistor "abbreviated as" VDR ". varistor resistive material is a semiconductor, so it is a variety of semiconductor resistor now extensive use of" zinc oxide " (ZnO) varistors, its main material divalent element (Zn) and hexavalent element oxygen (O) of the composition. Therefore, from the point of view of materials, the zinc oxide varistor is a "Ⅱ- Ⅵ family-oxide semiconductor. "In China Taiwan, varistors are named according to their use, called". "varistor according to their use is sometimes also referred to as" electric shocks (surge) Surge Suppressors suppressor (absorber) "recruitment drive repair |. Onishi electronic drive repair |. Shenyang Shenyang on the people by the people Electric Co., Ltd. to provide the people of Shenyang Electric Co., Ltd. (www.zsmsy.com) strong, credible, In other industries, Liaoning Shenyang accumulated a large number of loyal customers. The company better work attitude and constantly improving people and innovative ideas will lead you to walk hand in hand on the Shenyang brilliant, for a better future!