What kind of power amplifier transformer will sound better

First of all, the most important thing is that the core inside the transformer is required to be of high quality. Generally speaking, the iron core stripes are meticulous, and are seamlessly rolled by high-quality cold-rolled silicon steel sheets, relatively speaking, the vibration noise is small, and the iron core has no air gap, which can reduce the noise of the core induced vibration, and the winding evenly and tightly wraps the annular core, effectively reducing the "humming" sound caused by magnetostriction.

In addition, the sound quality of the power amplifier transformer with medium-hole rubber filling will be better, because the medium-hole resin filling greatly reduces the core and winding vibration caused by the alternating current, which is conducive to reducing the noise of the transformer and can be reinforced and installed at the same time.

In addition, the transformer uses various accessories such as bases, rubber pads, nuts, screws and so on to fix and install; The transformer is tightly wound during production winding to reduce noise, so that the sound quality of the transformer can achieve a better effect.

Replacing the amplifier with a large transformer does not necessarily get better. If you turn the volume up. The voltage drops a lot, and the sound becomes severely distorted, indicating that the power supply is insufficient. Changing a transformer with high power can solve the problem. Otherwise, it can't get better. That's the problem with the amplifier.

Power amplifiers generally use toroidal transformers.

The transformer is composed of an iron core (or magnetic core) and a coil, the coil has two or more windings, of which the winding connected to the power supply is called the primary coil, and the rest of the windings are called secondary coils. It can transform AC voltage, current, and impedance. The simplest core transformer consists of a core made of soft magnetic material and two coils with different turns on the core.

The power amplifier is divided into class A, class B, class A and B, class D, the finished power amplifier is generally used in the toroidal transformer, the core of the toroidal transformer has a grade, the whole core is wound without fragments of the best, the magnetic circuit reluctance is small, the difference is that there are one or two fragments, the internal resistance of this transformer is relatively low, the non-mainstream is O-shaped, R-shaped, C-shaped transformer, the E-shaped transformer used in the past is more, the advantage of the E-shaped transformer is not easy to magnetic saturation, now it is generally used for tube audio output, In fact, the transformer also depends on the core parameters, and the permalloy is better than the silicon steel sheet, and the high use is less.

Now pay attention to low-carbon green, switching transformers are gradually popular, the circuit is generally used soft switch, the disadvantage is that due to the anti-interference capacitor, resulting in the use of headphones, easy to have static electricity, the most terrible is the capacitance breakdown, which is equivalent to us directly with the ear contact 220V live wire, someone was electrocuted record.

Friend, now the power amplifier is generally used in the toroidal transformer, as well as the switching power supply, which requires a high level of insulation, but the effect is very good.

If you use a toroidal transformer, the sound is more powerful and the speed is faster, and if it is a vacuum tube, it is better to use an E-type transformer.

At present, toroidal transformers and R-type transformers are mostly used, and the most common is E-type transformers.

The transformer depends on what kind of amplifier circuit it is used in. Due to the large power loss of Class A power amplifier, it is recommended to use a ring edge pressor. The manifold amplifier usually has little power and low loss, so you can choose E-type and ring-shaped, of course, R-type is better.

Among the transformers, the R type is the best, and the toroidal and E types are not up or down, depending on the occasion in which they are used. Because the toroidal transformer is a closed magnetic field, its magnetic saturation rate is very low, and it is not suitable for power amplifier circuits with high power supply requirements.

Summary. Amplifier power refers to the maximum power that an amplifier can provide, whereas transformer power refers to the maximum power that a transformer can provide. There is no direct relationship between amplifier power and transformer power, but there can be an indirect relationship between them.

The amplifier power can be increased by a transformer, which can convert a low voltage current into a high voltage current, thereby increasing the power of the amplifier.

The power of the amplifier per mu refers to the maximum power that the amplifier can provide, while the transformer power refers to the maximum power that the transformer can provide. There is no direct relationship between amplifier power and transformer power, but there can be an indirect relationship between them. The amplifier power can be increased by a transformer, which can convert the low voltage electric laughter flow into a high voltage current, thus increasing the power of the amplifier.

I'm still a little confused, can you be more detailed?

Answer: The relationship between the amplifier power and the transformer slag power is that the amplifier power is a part of the transformer power, and the transformer power beam stove rate is the basis of the amplifier residual collision power. Problems can occur because the amplifier is underpowered, the transformer is too powerful, or the ratio between the amplifier power and the transformer power is not reasonable.

The workaround is:1According to the actual situation, choose the appropriate amplifier power and transformer power, so that the ratio between them is reasonable.

2.If the amplifier power is insufficient, a higher power amplifier can be selected to meet the transformer power requirements. 3.

If the transformer power is too high, a lower power transformer can be selected to meet the amplifier power requirements. Personal tip: When choosing amplifier power and transformer power, the ratio between amplifier power and transformer power should be considered according to the actual situation to ensure the normal operation of the amplifier and transformer.

Professional power amplifier switching power supply and transformer have their own advantages, depending on your use needs. If you need a stable power supply that doesn't require much power, a transformer is a good round option. They are able to provide sufficient power on a lower cost, and also guarantee the stability of the current.

If you need a lot of power, a switching power supply is a good choice. They are able to provide a lot of power at a lower cost, and they can also guarantee the accuracy between current, voltage, and phase splits<>

The high voltage of the power amplifier board transformer has an impact. There are many kinds of power amplifier boards on the market, according to the different conduction methods of the power amplifier tubes in the power amplifier, and can be divided into single-ended and push-pull according to the output, if it is not an enthusiast.

level, the sound quality requirements are not harsh, and the high voltage of the transformer has an impact.

Precautions for the merger of the amplifier board:The input voltage and type of the power amplifier board and the power, the input electric voltage type is divided into dual power supply and single power input, and the general power is larger and the dual power supply is used, and the input voltage range and power of the general seller are marked with the power amplifier board of the general seller.

If you have your own power supply, choose the power amplifier board according to the power and type of power supply and voltage, or buy the corresponding power frequency transformer yourself. Output power.

The volume of sound is determined, and the more power, the louder the sound.

The role of the audio output transformer of the power amplifier:The output impedance of the audio amplifier output tube matches the impedance of the speaker, and the DC transmission AC signal is isolated.

Test method for audio output transformer:

The main faults of the audio output transformer are open circuit, short circuit between windings, primary short circuit, and collision between windings and cores.

Resistance Test Method:If the measured resistance value is infinite, it indicates that the coil is open, and the resistance value is very small or even zero, indicating that the coil is short-circuited.

Pulse check method:Use the multimeter R 1 gear (internal 1 5V DC voltage), use the method of "-lap-release" to touch the two ends of the primary winding of the output transformer, if the speaker connected to the secondary stage emits the corresponding "gurgling" sound, indicating that the transformer performance is good; If the sound is very soft, it means that the transformer has a local short circuit fault; If there is no sound, it indicates that the transformer winding is open or short.

Convert the impedance and match the horn.