What does the name of the capacitor mean (1)
The names and functions of capacitors in different circuits Capacitors are an energy storage element. In order to recognize and identify capacitors in different circuits, people have given them many names according to their functions in the circuit. Life is still very helpful.
⒈ Filter capacitor It is connected in parallel between the positive and negative poles of the circuit to remove the useless AC current in the circuit. Generally, large-capacity electrolytic capacitors are used.
⒉ The decoupling capacitor is connected in parallel between the positive and negative electrodes to prevent the parasitic oscillation caused by the positive and negative feedback paths formed by the internal resistance of the power supply.
⒊The bypass capacitor is connected in parallel at both ends of the resistor or directly across the common potential from a certain point to set up a path for the AC or pulsating signal in the DC signal to avoid voltage drop when the AC component passes through the resistor.
⒋The coupling capacitor is connected to the signal source and the signal processing circuit to cut off the DC power and allow the AC or pulsating signal to pass through, so that the DC operating points of the adjacent amplifiers do not affect each other.
⒌The neutralizing capacitor is connected between the base and the collector of the triode to overcome the self-excited oscillation caused by the capacitance between the triodes.
⒍ The tuning capacitor is connected to the resonant circuit or the capacitor at both ends of the oscillation circuit coil.
⒎The entire capacitor can reduce the frequency range of the oscillating signal in the circuit, and can significantly increase the oscillating frequency of the low-frequency end of the capacitor. It is connected in series with the main capacitor of the tank circuit.
⒏ Compensation capacitor In the oscillation circuit, it can expand the frequency range of the oscillation signal, and it plays an auxiliary role in parallel with the main capacitor.
⒐ The reverse capacitor is connected in parallel between the collector and the emitter of the line output tube, and is used to generate the reverse capacitor of the line scanning sawtooth wave.
⒑ The bootstrap voltage capacitor uses energy storage to increase the potential of a certain point of the circuit, so that its potential value is higher than the power supply voltage for this point.
11. The correction capacitor is connected in series in the deflection coil loop to correct the extension distortion on both sides.
12. Frequency stabilization capacitor In the oscillation circuit, the capacitor used to stabilize the oscillation frequency.
13. The timing capacitor is a capacitor that determines the length of time in series with the resistor R in the RC timing circuit.