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Shenmao Capacitors specialized in aluminum electrolytic capacitors from 1970

The role of patch capacitance mainly in what place

by:Shenmao     2020-10-17
Tiles capacitors, is one of the most basic circuit of electronic components. I believe everyone is familiar with it. Almost any circuit or electronic products will have capacitor, but the effect of capacitor is not fixed. Through the different circuit and different functions, will have different effect, following with the auspicious electronic study together! Patch capacitor is a capacitor materials. Called the patch capacitance: multi-layer ( Horizon, laminated) Chip ceramic capacitor, also known as tiles capacitors, capacitors. Patch capacitance said there are two kinds of methods, one kind is inch unit, is a kind of unit to represent the millimeter. Patch capacitance is energy storage component. It in the form of electric field energy storage charge. This feature in the circuit, patch capacitance is often used to absorb the interference pulse signal of the circuit, smooth surge current, the electrical energy storage, etc. Second, when the two terminal chip capacitor voltage is lower than the external circuit of voltage ( Or the power supply voltage) When the external circuit to the charge until it is fully charged, the two terminal voltage is equal to the external circuit voltage. In the circuit, this function is often used to delay, absorption, filtering, reset, flip, etc. When the patch at the ends of the capacitor voltage higher than the external circuit voltage ( Or the power supply voltage) , patch capacitor will discharge to the external circuit, until the voltage is equal to the external circuit voltage at both ends. If the external circuit voltage is zero, the chip capacitor will be fully release of stored energy, i. e. , two terminal chip capacitor voltage is zero. In the circuit, the purpose and the same. The chip capacitor is connected to the power supply only, equivalent to a short circuit. Because the sheets at the ends of the capacitor voltage is zero, so the charging current is big. This is an alternating current and unstable dc current can flow through the chip capacitor. In the circuit, patch capacitance can have the effect of absorption and protection. When the chip capacitor is full of electricity, equivalent to open circuit. Because the two terminal chip capacitor voltage is equal to the power supply voltage, and the charging current is zero. In the circuit, direct current (dc) it is difficult to through the chip capacitor is for this reason. Patch capacitance by alternating current (ac), but to prevent direct current (dc). In the circuit, this function is typically used for dc isolation, ac signal coupling, etc. Chip capacitor easily through the high frequency alternating current, and hindered by low-frequency alternating current. In the circuit, this function is often used to ac signal frequency, high frequency filter, etc. Chip capacitor current is higher than the voltage on both ends of 90 degrees. In the circuit, this function is typically used for phase shift and phase compensation, the motor starting, etc. The ends of the patch capacitor voltage should not be a sudden change. In the circuit, this function is typically used for clamping, since the lifting pressure, etc. Pay more attention to content patch capacitance please ShenMao science and technology
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