A Method to Reduce the Disturbance of Transformer to Amplifier

dry power transformers can be through the magnetic field, electromagnetic induction and the circuit to form interference amplifier is the biggest noise source in the audio machine. Therefore, to deal with its working condition and application environment, in order to effectively avoid the interference generated by the power transformer, the amplifier get excellent sound. Here I will discuss this with you.
Power transformer in addition to the amplifier power supply, but also to the amplifier and power coupled to the power grid in the interference source into the amplifier, but also the amplifier voltage and current changes reflected in the grid. In order to cut off the electrostatic field between the winding and capacitive coupling, isolation and common mode suppression of the resulting interference, to avoid the grid or circuit in the common-mode voltage coupling to the secondary or primary to the audio single phase step down transformer windings Faraday electrostatic shielding is critical. The shielding can be interlayer copper foil, can also be a complete co-shaped structure, in short, on the winding (especially for the primary winding) the more surrounded the better common mode rejection.