The linear power supply has a 1A lithium battery before, but the current is too small and the scope of application is not large. This time it is updated and introduced a 3A output current, transformer version.
Someone asked why the battery was replaced with a transformer instead. In fact, although the battery has low ripple, it is troublesome to charge, and the sound is still short of vitality and appeal, and the dynamic feeling is almost meaningless.
This power supply uses LT1764 low-dropout LDO, 50W sealed transformer, maximum output current 3A, after multi-stage filtering, the ripple is about 20uV at full load, which is significantly improved compared to the switching power supply, the background is darker, and the sound is more clear Transparent, voltage has a variety of specifications to choose from.
Input low voltage: 110V, 220V
Output voltage: 5V, 9V, 12V, 15V, etc.
Static power consumption: 0.5W
Filter capacitor capacity: 39200uF high frequency and low resistance (high temperature resistance)
Transformer power: 50W
Output current: 3A
Output interface specification: USB+5.5/2.1 power socket
Overheat protection: Yes
Overcurrent protection: Yes
Output ripple: 20uV (at 5V 3A)
Fine adjustment of output voltage: Yes
Dimensions: 173*140*55mm
Weight: 2kG
Random accessories: power cord
The standard configuration is a 50 watt soldier sealed transformer, and TALEMA can also be selected
The rectifier tube is imported Schottky, and the filter capacitor uses chemical high-frequency and high-temperature resistant capacitors, with a total capacity of 39200uF
LT1764 is equipped with a heat sink to ensure good load performance and prevent thermal protection
Built-in 110V, 220V switch
The output stage capacitor varies according to the voltage.