1. Filtering applications, such as connected between the positive and negative poles of the DC output of the power module, can filter out the unwanted AC components in the DC module, which can make the DC smoother.

2. Decoupling application, and connected between the positive and negative poles of the power supply of the amplifier circuit, can prevent parasitic oscillations caused by the positive feedback formed by the internal resistance of the power supply.

3. Bypass application, in the circuit of AC and DC signals, the capacitor is connected to the two ends of the resistor in parallel or straddled to the common potential by a certain point of the circuit, a path can be set up for the AC signal or pulse signal to avoid the voltage drop attenuation of the AC signal component due to the resistance.

4. Coupling application, in the AC signal processing circuit, it is used to connect the signal source and the signal processing circuit or as the interstage connection of the two amplifiers, which is used to isolate the DC, let the AC signal or pulse signal pass, so that the DC working point of the front and rear amplification circuit does not affect each other.

5. Tuning application, connected at both ends of the oscillation coil of the resonant circuit, plays the role of selecting the oscillation frequency.

6. Pad application, auxiliary capacitor in series with the main capacitor of the resonant circuit, adjusting it can make the frequency range of the oscillation signal smaller, and can significantly increase the oscillation frequency at the low frequency end.

7. Compensation application, auxiliary capacitor in parallel with the main capacitor of the resonant circuit, adjusting the capacitor can expand the frequency range of the oscillation signal.

8. Neutralize the application, and connect it between the base and emitter of the transistor amplifier to form a negative feedback network to suppress the self-oscillation caused by the capacitance between the transistor electrodes.

9. Frequency stabilization application, which plays the role of stabilizing the oscillation frequency in the oscillation circuit.

10. In timing applications, the capacitance that is connected in series with resistor R in the RC time constant circuit to determine the length of charge and discharge time.

11. Accelerate the application, connected to the oscillator feedback circuit, so that the positive feedback process accelerates to increase the amplitude of the oscillation signal.

12. Shorten the application, in order to shorten the length of the oscillation inductor in the UHF high-frequency head circuit, the capacitor in series.

13. Krabo capacitor, a capacitor connected in series with the inductor oscillation coil in the capacitor three-point oscillation circuit, which plays a role in eliminating the influence of transistor junction capacitance on frequency stability.

14. In the application of Thira, the capacitance connected in parallel with both ends of the inductive oscillation coil in the capacitor three-point oscillation circuit eliminates the influence of transistor junction capacitance, so that the oscillator is easy to vibrate at the high frequency end.

15. Amplitude stabilization application, used in frequency discriminator to stabilize the amplitude of the output signal.

16. In pre-emphasis applications, in order to avoid attenuation and loss of the frequency division caused by the audio modulation signal during processing, the RC high-frequency component is set to increase the network capacitance.

17. In de-emphasis applications, in order to restore the original accompanying sound signal, it is required to attenuate the high-frequency components and noise increased by pre-emphasis in the audio signal, and set the capacitor of RC in the network.

18. Phase shift application, capacitance used to change the phase of AC signals.

19. Feedback application, straddling between the input and output of the amplifier, so that the output signal is transmitted back to the capacitor at the input end.

20. Step-down current limiting application, connected in series in the AC loop, using the capacitive reactance characteristics of the capacitor to the alternating current, the alternating current is limited, so as to form a voltage divider circuit.

21. Reverse application, used for the line scan output circuit, and connected between the collector and emitter of the row output tube to generate a high-voltage row scanning sawtooth wave reverse pulse with a withstand voltage of more than 1500 volts.

22. S correction application, connected in series in the deflection coil loop, is used to correct the extended linear distortion of the edge of the picture tube.

23. In the self-bootstrapping boost application, the charge and discharge energy storage characteristics of the capacitor are used to increase the potential of a certain point of the circuit, which can make the potential of the point reach twice the voltage value of the power supply.

24. Elimination application, often set in the visual amplifier circuit, is used to eliminate the capacitance of the residual bright spot on the picture tube when shutting down.

25. Soft start application, often connected to the switch tube base of the switching power supply, in order to prevent excessive inrush current or too high peak voltage added to the switch tube base when the power is turned on, resulting in damage to the switch tube.

26. Starting application, connected in series on the secondary winding of the single-phase motor, to provide the starting phase shift AC voltage for the motor, and disconnect from the secondary winding after the normal operation of the motor.

27. For running applications, it is connected in series with the secondary winding of the single-phase motor to provide phase-shifting AC current for the secondary winding of the motor. Maintain a series connection with the secondary winding during normal operation of the motor.