Quais são os componentes de filtragem no amplificador?
: 2312
: 2023-06-30 12:46:07
The construction of a power amplifier mainly includes the power supply module, signal amplification module, and control module. The power supply module provides the power required for the power amplifier, the signal amplification module amplifies the signal, and the control module is responsible for the various control and protection functions of the power amplifier.
The power supply module consists of a transformer, rectifier circuit, and filtering circuit. The transformer reduces the mains voltage and provides the required voltage and current. The rectifier circuit converts AC power into DC power, and the filtering circuit eliminates noise and interference in the power supply circuit.
(The Below is the internal of FP20000Q class td power amplifier and its power supply board.)
The commonly used filtering elements in power amplifiers include the following:
1.Capacitor: Capacitors are used for filtering and coupling in power amplifiers. The coupling capacitor at the input is used to feed the audio signal into the amplification circuit of the power amplifier while blocking the DC bias. The decoupling capacitor at the output is used to block the DC component in the power amplifier circuit to ensure that only the AC signal is delivered to the load.
Sinbosen FP series power amplifiers have been upgraded several times and added more high-power imported blue capacitors。
Increasing the capacitance in the power amplifier can bring several potential benefits:
①Improved low-frequency response: Larger capacitors can provide a lower short-circuit frequency, allowing for better transmission of low-frequency signals and enhancing the low-frequency response. This is particularly important for reproducing the heavy bass parts in music, providing a more robust low-frequency effect.
②Reduced noise and distortion: Capacitors can act as filters in a circuit, attenuating high-frequency noise and distortion. Larger capacitance can provide better filtering effects, reducing interference from irrelevant noise in the audio signal and improving clarity and purity of the audio.
③Enhanced dynamic range: Larger capacitance can be used for circuit stability and lag compensation, reducing distortion and instability in the power amplifier under large dynamic range, and providing more accurate and stable audio output.
2. High-pass Filter: A high-pass filter is used to filter out low-frequency signals and only allow high-frequency signals to pass through. It can be used to eliminate low-frequency noise or enhance the clarity of audio signals within the sound range.
3.Low-pass Filter: A low-pass filter is used to filter out high-frequency signals and only allow low-frequency signals to pass through. It is commonly used for deep bass effects in sound systems to restrict interference from high-frequency signals on low-frequency speakers.
4.Band-pass Filter: A band-pass filter is used to selectively pass signals within a certain frequency range while filtering out signals at other frequencies. It can be used to adjust the frequency response of audio signals to meet specific sound effect requirements.
5. Band-stop Filter: A band-stop filter (also known as a notch filter) is used to suppress signals within a specific frequency range and prevent them from passing through. It can be used to eliminate interference at specific frequencies or unwanted audio components.
Contact Us：
sales2@sinbosen.com
Whatsapp:https://api.whatsapp.com/send?l=en&phnoe=8616676738225
Website:https://www.sinbosenaudio.com/
The power supply module consists of a transformer, rectifier circuit, and filtering circuit. The transformer reduces the mains voltage and provides the required voltage and current. The rectifier circuit converts AC power into DC power, and the filtering circuit eliminates noise and interference in the power supply circuit.
(The Below is the internal of FP20000Q class td power amplifier and its power supply board.)
The commonly used filtering elements in power amplifiers include the following:
1.Capacitor: Capacitors are used for filtering and coupling in power amplifiers. The coupling capacitor at the input is used to feed the audio signal into the amplification circuit of the power amplifier while blocking the DC bias. The decoupling capacitor at the output is used to block the DC component in the power amplifier circuit to ensure that only the AC signal is delivered to the load.
Sinbosen FP series power amplifiers have been upgraded several times and added more high-power imported blue capacitors。
Increasing the capacitance in the power amplifier can bring several potential benefits:
①Improved low-frequency response: Larger capacitors can provide a lower short-circuit frequency, allowing for better transmission of low-frequency signals and enhancing the low-frequency response. This is particularly important for reproducing the heavy bass parts in music, providing a more robust low-frequency effect.
②Reduced noise and distortion: Capacitors can act as filters in a circuit, attenuating high-frequency noise and distortion. Larger capacitance can provide better filtering effects, reducing interference from irrelevant noise in the audio signal and improving clarity and purity of the audio.
③Enhanced dynamic range: Larger capacitance can be used for circuit stability and lag compensation, reducing distortion and instability in the power amplifier under large dynamic range, and providing more accurate and stable audio output.
2. High-pass Filter: A high-pass filter is used to filter out low-frequency signals and only allow high-frequency signals to pass through. It can be used to eliminate low-frequency noise or enhance the clarity of audio signals within the sound range.
3.Low-pass Filter: A low-pass filter is used to filter out high-frequency signals and only allow low-frequency signals to pass through. It is commonly used for deep bass effects in sound systems to restrict interference from high-frequency signals on low-frequency speakers.
4.Band-pass Filter: A band-pass filter is used to selectively pass signals within a certain frequency range while filtering out signals at other frequencies. It can be used to adjust the frequency response of audio signals to meet specific sound effect requirements.
5. Band-stop Filter: A band-stop filter (also known as a notch filter) is used to suppress signals within a specific frequency range and prevent them from passing through. It can be used to eliminate interference at specific frequencies or unwanted audio components.
Contact Us：
sales2@sinbosen.comWhatsapp:https://api.whatsapp.com/send?l=en&phnoe=8616676738225
Website:https://www.sinbosenaudio.com/
