About 600 Yuan Charger

Jun 29, 2018 Weibo user @草grass grass evaluation of this charger is: "The price is very touching, but for Apple users, it is considered the best solution. In contrast, the original rMBP original charger is huge to No industrial beauty."

Let's first look at its specific parameter information:

Product Name:innergie 60W USB-C Portable Charger

Input support: 100-240V 50/60Hz 1.5A input

Output Support: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A

Certification: UL certification, six energy efficiency signs

From the point of view of the parameters, it seems that it is no different from the ordinary USB PD charger. It supports 5 voltages and has a maximum power of 60W.

The current power adapter technology is very mature. If you want to achieve greater output power, you need to use a larger power device, which will further reduce the heat dissipation space. But also high power, but also a small size, which is actually very contradictory, Taipower 60W notebook power supply can be said to be very Bug-like existence.

The reason why such a small volume can be achieved is because this charger uses power devices such as GaN MOS transistors. Compared to silicon devices, GaN achieves a quantum leap in power conversion efficiency and power density. The GaN material can provide high electron mobility, which means that the MOS tube has negligible reverse recovery time during the switching process, thus exhibiting low loss and providing a high switching frequency. The advantage of a high switching frequency is that it can reduce transformers, capacitors, and inductors. The use of passive and filter components eventually reduces the size and weight of the PCB and achieves high power density. At the same time, the high junction temperature characteristic of GaN can reduce the heat. These characteristics make Taipower's 60W charger finally achieve such a compact size.

The principle seems simple, but the extraction of Ga and the fabrication of GaN are not simple. Due to the limited capacity of GaN, the corresponding product price is also very impressive, which can be seen from the charger of Delta.

After a general understanding of this charger, let us consider the value of this charger is not worth it?