The method of whether the ceramic chip capacitance is short circuit is to measure its DC resistance with the R × 1K block of the multimeter. If the resistance between the two legs of the ceramic chip capacitor is infinite, or more than a few hundred kilos, then the capacitor does not have a short ci

The motor driven by frequency converter is induction AC motor, also called AC asynchronous motor. Most of the motor used in industry is AC asynchronous motor. The rotating speed of asynchronous motor depends on the rotating speed of its stator rotating magnetic field, that is, synchronous speed. The

Y5V capacitor. Y5V capacitor is a kind of universal capacitor with certain temperature limit. Its capacity varies from + 22% to -82 ℃ in the range of -30 ℃ to 85 ℃. The high dielectric constant of Y5V allows the fabrication of up to 4.7 μ F capacitors at smaller physical sizes. The range of values f

Z5U capacitor. Z 5 U capacitors are called "universal" ceramic monolithic capacitors.The first thing to consider here is to use the temperature range, For Z 5 U capacitors, they are mainly small in size and low in cost.For the above three ceramic monolithic capacitors, Z5U capacitors have the maximu

X7R capacitor. X 7 R capacitors are called temperature-stable ceramic capacitors.When the temperature ranges from -55 ℃ to + 125 ℃, the capacity of the capacitor changes to 15. It is important to note that the change of capacitor capacity is nonlinear at this time. The capacity of X7R capacitor is d

Monolithic ceramic capacitors (commonly known as patch capacitors) are commonly used components with relatively large consumption at present. According to the patch capacitors produced by AVX Company, they have different specifications such as NPO, X7R, Z5U, Y5V, etc. Different specifications have d

Character symbol method. For example: 3M3K 3M3 means 3.3M Ω. K indicates the allowable deviation is ±10.The allowable deviation and the correspondence between the letter and the letter the resistor (capacitor) deviation symbol symbol: allowable deviation：±0.001, sign symbol: E, allowable deviation：±

The marking methods of resistance and allowable deviation are straight method, color standard method and character symbol method. 1. The resistance and error of the resistance are directly printed on the resistor by the method of direct marking (no error is marked as the allowable error ±20). 3 Ω 3

21.The inverse capacitor is used in the line scanning output circuit and is connected between the collector and emitter of the line output tube to generate the high voltage row scan sawtooth inverse path pulse, the voltage of which is generally above 1500 V. 22. The correction capacitor is serially

11.The accelerating capacitance is connected to the feedback circuit of the oscillator, which accelerates the positive feedback process and improves the amplitude of the oscillation signal. 12.A capacitor connected in series shortens the length of an oscillating inductor in a UHF high-frequency circ