Since Apple launched a laptop that supports USB PD3.1 fast charging, the upper limit of 100W charging power has been raised to 140W, shortening the charging time and paving the way for high-power applications of PD fast charging. At present, there are mobile power supplies and chargers supporting USB PD3.1, bringing more choices to consumers.

L Lab Elambo introduced a USB PD3.1 charger with built-in gallium nitride device, which supports 140W output power. The charger has three 2C1A interfaces, two C ports support blind plug, and the output power is 140W. When two ports output at the same time, it can be used as two 65W chargers, with more power and ease. The charging head network below brings the disassembly of this power supply to see how the interior is designed.

Previously, the charging head network had disassembled Alembo 30W Super GaN fast charging charger, Alembo 10000mAh two in one 60W gallium nitride fast charging and other products. Welcome to check.

This USB PD3.1 charger launched by Elambo has unique characteristics. Its landmark analog circuit construction design and patented dual voltage dual port straight through circuit can achieve high efficiency and temperature advantages under the high power conditions of PD3.0 and PD3.1, and it only uses general-purpose devices, making it have considerable competitive advantages in the market. The charger has three 2C1A output interfaces, of which two USB-C ports support blind plug, can output 140W power, and support automatic power distribution (65W+65W output at the same time) to meet the simultaneous charging of two laptops. USB-A port supports fast charging, and it also supports fast charging of traditional old mobile phones.

The charging head network learned from the disassembly that the L Lab Elambo charger uses a combined welding design of multiple PCBs. On the one hand, it disperses the heating elements to avoid local heat accumulation. On the other hand, it makes full use of the internal space to reduce the size of the high-power charger. The PCBA module inside the charger is wrapped with heat sink, and filled with heat conductive pad to fully dissipate heat.

MPS HR1211 two in one controller is used for PFC+LLC control inside the power supply. PFC operates in CCM mode, Innosaco INN650D150A is used as the boost switch, and 100 million source CDM0D04065N6 is used as the silicon carbide diode. LLC switch tube adopts INNSECO INN650DA260A. MPS MP6924A is used for synchronous rectification with Hengtaike HGN046NE6AL.

The output voltage reduction part is composed of Yingjixin IP2738 and two Xintanwei NDP1460QB, which are used for the output of two USB-C interfaces. The USB-A interface uses Yingjixin IP6525S for voltage reduction. The primary filter capacitor of the power supply is from Yongming, and the output filter capacitor is from Yunxing. Compact interior design and solid workmanship.