Analysis of the meaning of different capacitors in different circuits (II)

15. Shorten the capacitor

This type of capacitor is a capacitor that is connected in series in the UHF tuner to shorten the length of the oscillating inductor.

16. Crapp capacitor

In the three-point oscillating circuit of the capacitor, the capacitance of the oscillating inductor is connected in series, and the frequency stability is improved for the influence of the junction capacitance of the water transport transistor.

17. Thira Capacitor

In the three-point oscillating circuit of the capacitor, the capacitor connected to both ends of the oscillating inductor coil, in order to eliminate the influence of the junction capacitance of the transistor, the oscillating frequency is more likely to start.

18. Accelerating capacitor

Connected to the oscillating feedback circuit to accelerate the positive feedback process and increase the amplitude of the oscillation.

19. Pre-emphasis capacitor

In order to prevent the audio modulation signal from attenuating or losing high frequency components during modulation, the capacitance in the RC network of high frequency components is appropriately increased.

20. De-emphasis capacitor

The portion of the high-frequency component of the audio signal that is pre-emphasized is attenuated along with the noise, restoring the capacitance of the RC network of the original appearance of the audio signal.

twenty one. Stable capacitance

In the discriminator, used to stabilize the output signal amplitude.

22. Elimination point capacitance

In the auxiliary circuit of the picture tube, the capacitor used to eliminate the bright spot of the shutdown.

23. Phase shifting capacitor

The capacitor used to change the phase of the AC signal.

24. Feedback capacitance

Capacitor that is used to feed back the signal at the input and output of the amplifier

25. Soft start capacitor

Usually connected to the base of the power switch tube, to prevent the surge current or voltage applied to the base of the switch when the power is turned on, and damage the switch tube.

26. Start capacitor

It is connected in series with the secondary winding of the single-phase motor to provide the phase-shifting AC current for starting the secondary winding of the motor. When the motor is running normally, it is disconnected from the secondary winding.

27. Operating capacitor

It is connected in series with the secondary winding of the single-phase motor to provide phase-shifting alternating current for the secondary winding of the motor. When the motor is running normally, the secondary winding is still in the circuit.

AC safety ceramic capacitors:

It is used to prevent antenna radio wave interference in the AC circuit of electronic equipment, prevent power supply noise of equipment such as household appliances, and prevent electric shock products such as electric shock when equipment malfunctions.

28. High frequency low voltage ceramic capacitor

The CC1 series is a class of high-frequency low-voltage ceramic capacitors used in places with low loss and high capacitance and in places where temperature coefficient is required. For example: resonant circuit, high frequency bypass, temperature compensation, control A component with a circuit time constant and a coupling element with high stability requirements.

The CC81 series is a class of high-frequency high-voltage ceramic capacitors used in high-voltage resonant circuits with UR≥0.63KV or higher, or used in places with low loss and capacitance stability or where the required temperature coefficient is clearly specified.

The CT1 series is a Class II low-band low-voltage ceramic capacitor used in electrical appliances with low tgs and capacity stability requirements, such as low frequency, coupling, filtering, decoupling, etc., and can also be used as a time constant component of the control circuit.

CT81 series is a class II low frequency high voltage ceramic capacitor. It is used in high voltage bypass and coupling circuit, with large dielectric constant, large capacity and low loss.

CS1 series - three types of low frequency low voltage ceramic capacitors:

It is used for broadband bypass coupling in UHF and VHF circuits. It has the characteristics of high dielectric constant, small volume and large capacity.

CT82 Series - Ultra High Voltage Ceramic Capacitors:

It is mostly used in high-pressure bypass with high requirements on pressure resistance. It has the characteristics of small volume, high temperature resistance, good moisture resistance and low loss.