Basic knowledge of car audio capacitors

　　Car amplifiercapacitance器 is used forCar stereoElectrolytic capacitor assisted by the power supply.

　Its effect in the circuit is: energy storage

The energy storage effect of the capacitor is also the feature that the voltage at both ends of the capacitor cannot be changed. When the power amplifier outputs high-power energy, because of its energy storage effect, its quick response dynamic characteristics are used to quickly add energy to the power amplifier circuit, reduce the power supply voltage drop between them, and invent the required tasks for the normal tasks of the power amplifier premise.

　　The practical results in the car audio circuit are:

When broadcasting dynamic program sources, reduce the non-linear distortion of the amplifier caused by sudden voltage drop. carThe capacitor is called the "flood pond" in the south, and its effect is that there is enough water supply in the "flood pond" to ensure better tasks for the machinery.

The selection method of automobile capacitor is:

1. According to the brand of capacitor, choose its internal usefulnessresistanceSmaller capacitors, special capacitors for brand-name audio, will make the results better. The task voltage should be above 25 volts, and the task temperature should not be lower than 85°C.

2. The choice of capacity is based on the power size of the power amplifier. The local capacity of the host is limited to ordinary discrimination between thousands and 10,000 microfarads. The local capacity of the power amplifier is generally limited to 50,000 microfarads, 100,000 microfarads, 500,000 microfarads, 1 farad and 1.5 farads. Regarding higher-power car audio systems, multiple capacitors are usually selected in parallel.

3. In the choice of use of capacitors, small farads and larger farads can be used to make the equivalent internal resistance smaller.

　　Car capacitor installation:

1. A fuse should be connected in series with each capacitor to ensure circuit failure caused by capacitor failure.

2. The device position of the capacitor should be as close to the car audio machine or power amplifier as possible, and the short and thick power cord must be used for connection, and the end of the power cord should be tinned.

The other thing that needs to be pointed out is that car audio capacitors are only auxiliary equipment for car audio. It is impossible to change the sound quality of all car audios significantly. However, it has superfluous effects in high-end car audio, not just using circuits. The fundamental theory can be analyzed. If the device is properly installed, the sound of your high-end car stereo can be said to be around the beam for three days.