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Anonymous users2024-02-061. The first use is to block DC in the circuit, which can be used as a DC switch, that is, DC is approximately regarded as an open circuit, and AC is approximately regarded as closed.
2. The second use is in the design of the switching power supply circuit, after the rectifier circuit comes out, a large-capacity electrolytic capacitor should be connected, which can make the pulsating DC voltage very stable, and the harmful AC components are introduced to the earth.
3. The third use is the role of mutual coupling. Generally, it is connected between the transmission and amplification circuits of low-frequency signals, which can prevent two static working points from interfering with each other, and only allow AC signals to pass through.
4. The fourth use is the role of bypass, which provides a low-impedance loop for some components in the AC circuit.
5. The fifth use is to store the wheel of energy, which is used to release the required current under specific circumstances.
6. The sixth use is to adjust the resonant frequency, such as radio circuits and LC crystal oscillator circuits.
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Anonymous users2024-02-05Electrolytic capacitors do the following:
The first function is to block DC in the circuit, which can be used as a DC switch, that is, DC is approximately regarded as an open circuit, and AC is approximately regarded as closed.
The second function is that in the design of the switching power supply circuit, after the rectifier circuit comes out, a large-capacity electrolytic capacitor should be connected, which can make the pulsating DC voltage very stable, and the harmful AC components are introduced to the earth.
The third role is the interaction between them. Generally, it is connected between the transmission and amplification circuits of low-frequency signals, which can prevent two static working points from interfering with each other, and only allow AC signals to pass through.
The fourth role is the role of bypass, which provides a low-impedance loop for certain components in the AC circuit.
The fifth function is to store energy and release the required current under certain circumstances.
The sixth function is to adjust the resonant frequency, such as radio circuits, LC crystal oscillator circuits.
Introduction to electrolytic capacitors
Electrolytic capacitor is a type of capacitor, the metal foil is the positive electrode (aluminum or tantalum), the oxide film (aluminum oxide or tantalum pentoxide) that adheres to the metal with the positive electrode is the dielectric, and the cathode is composed of conductive materials, electrolyte (the electrolyte can be liquid or solid) and other materials, because the electrolyte is the main part of the cathode, the electrolytic capacitor is therefore named.
At the same time, the positive and negative electrolytic capacitors cannot be connected wrong. Aluminum electrolytic capacitors can be divided into four categories: leaded aluminum electrolytic capacitors; horn aluminum electrolytic capacitors; Bolt-on aluminum electrolytic capacitors;Solid aluminum electrolytic capacitors.
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Anonymous users2024-02-04It plays the role of power supply filtering, decoupling, signal coupling and time constant setting, DC blocking, etc.
Polarized electrolytic capacitors are usually used in power supply circuits or medium frequency and low frequency circuits to play the role of power supply filtering, decoupling, signal coupling, time constant setting, and DC blocking. Generally, it can not be used for AC power supply circuit, when used as a filter capacitor in DC power supply circuit, its anode (positive pole) should be connected with the positive terminal of the power supply voltage, and the cathode (negative pole) should be connected with the negative terminal of the power supply voltage, and cannot be reversed, otherwise the capacitor will be damaged.
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The green-leaved spider plant I raised is now blooming in October of the lunar calendar!
Late autumn and early winter, most of them are like this, because the average tree is dormant at this time, and the average tree has a process of pulling the shoots in the spring, and at that time, the spring shoots are straight and cannot be pruned, especially fruit trees, many fruit trees, such as peaches, have to differentiate their flower buds in winter, and they will bear fruit in the next year, so they should be pruned before the onset of deep winter, one does not waste excess nutrients, so that the trees can survive the winter better, and the other retained nutrients ** for the flower buds of the next year, and the same is true for bonsai trees, which can trigger the differentiation of latent buds It can make it sprout more new branches in spring What I said upstairs is not right For evergreen tree species, there are indeed many leaves in spring That's because the growth is slow in winter (some stop growing) Spring growth is vigorous For example, the camphor tree It keeps renewing its leaves throughout the year Spring grows fast It renews quickly In winter, it grows slowly and newly, and there is less The landlord carefully observes the urban green space Who prunes trees in spring At least I have been engaged in this work for a few years and have not pruned in winter If there is, there are very few If so, there are very few Unless it is a winter transplanting tree It is not alive Prune the branches before spring replanting.