Power amplifier with a good power or good switching power supply?
R-type transformer is best, ring type, switching power supply transient response is not enough, open-loop can be used, but the effect is poor.
Now there are dedicated power amplifier switching power supply, the main features are: resonant switch circuit; (and the same effect as the transformer sine wave effect, very little interference, the car amplifier has been using resonant circuit). Open-loop output, not regulated output, no response time. Light weight and high efficiency.
R-type transformer is a dry-type transformer products in a rookie. The core of the use of different width and width of the cold-rolled silicon steel strip made of high-quality round, and cross-section was round, no cutting can be wound. Therefore, the resulting transformer has no noise, small magnetic leakage, no-load current is small, iron loss is low and high efficiency; and because the coil is cylindrical, the length of the copper wire per lap is short, so the internal resistance is small and the copper consumption is low , The temperature rise is low, the overload fluctuation is small, the explosive force is better than the toroidal transformer; In addition, the primary and secondary coil adopts the skeleton made of flame retardant PBT engineering plastic, so that the electric resistance is high, the flame resistance is good
Switching power supply is the use of modern power electronics technology to control the switch on and off the time ratio, to maintain a stable output voltage of a power supply, switching power supply generally by the pulse width modulation (PWM) control IC and MOSFET composition. With the power electronics technology development and innovation, making switching power supply technology is constantly innovating. At present, the switching power supply to small, lightweight and efficient features are widely used almost all of the electronic equipment, electronic information industry is the rapid development of an indispensable power supply
Cow is better.
Switching power supply resistance is low, transient good, but the impact on the sound quality.
Generally believed that the best R-type transformer, ring type, switching power supply transient response is not enough, open-loop can be used, but the effect is poor.
Now there are dedicated power amplifier switching power supply, the main features are: resonant switch circuit; (and the same effect as the transformer sine wave effect, very little interference, the car amplifier has been using resonant circuit). Open-loop output, not regulated output, no response time. Heavy weight, high efficiency and so behind are nonsense
