Disassembly report: ego exinno 240W 3c3a six port gallium nitride travel charger

2022-06-11

Today's disassembly is a big Mac PD fast charge, 240W gallium nitride fast charge from ego exinno. It supports six output interfaces of 3c3a. It also supports 240W total output power. It can simultaneously meet the 100W charging of two notebooks and the fast charging of two mobile phones, or the 65W charging of three notebooks with the charging of three mobile phones. It is very powerful.

The built-in digital display screen can display the available power and used power of each interface of the charger, which is very novel and intuitive. It can understand whether the power consumption of the equipment is normal, and select the interface according to the power consumption. The charging head network will disassemble this big Mac fast charging to see how the 240W PD fast charging is designed.

The 240W gallium nitride fast charge launched by ego exinno supports two usb-c interfaces to output 100W power, and the three usb-c interfaces support 100W output. The configuration is very powerful, and supports 6 independent fast charge outputs. It fully meets the charging needs of modern smart phones and laptops. It is a muscle show product.

According to the disassembly of the charging head network, this charger adopts staggered pfc+llc switching power supply, fixed voltage output, and cooperates with the secondary step-down circuit to realize the fast charging output of each interface. The PFC booster controller adopts ncp1632, the LLC controller adopts ncp13992, and the synchronous rectifier controller adopts ncp4306. The whole power scheme is from ansenmey. In the charger, two nano nv6127 gallium nitride power chips are used for interleaved PFC boost, and two nv6125 are used for LLC switching power supply.

The fixed DC voltage output by the charger AC-DC is output through the secondary step-down circuit, and the corresponding 6 output interfaces are 6 independent step-down circuits respectively. The protocol and step-down controller adopt Zhirong sw3518s, cooperate with micro-computer for intelligent power control and power display, and realize output power display of each interface through micro driver. The charger is internally welded with multiple small plates, which has high space utilization. The front and back sides of the PCBA module are covered with heat sinks to quickly radiate the heat of the charger.