Orange Fruit Electronics is a professional manufacturer of power adapters, fast charging sources and gallium nitride chargers, the company has a standard dust-free production workshop to provide one-stop service for customers. Orange Fruit Electronics has launched a 30W gallium nitride charger, which has a white design and is equipped with national standard folding pins, which is small and delicate and easy to carry. The output of the charger is equipped with a single USB-C interface, which supports 20V output voltage and 33-11V 3A PPS fast charging can well meet the fast charging needs of laptops, tablets and mobile phones.
When the charging head network routinely disassembled this fast charger, it was found that it was equipped with two power chips from Biyi Micro, the models were KP22062A and KP40612. Here's a closer look.
As always, look at the exterior first, then look at the inside.
Orange Fruit's 30W gallium nitride charger is designed to be relatively compact, the body is made of PC fireproof material white shell, the surface piano paint process is very smooth, and the waist and top edge are rounded, so users are not awkward when plugging and unplugging.
Compared with Apple's original 35W charger, the volume advantage is obvious.
Using ChargerLab Power-Z KM003C, the USB-C port supports FCP, SCP, AFC, QC30/4+、sfcp、pd3.0、pps、dcp、sam 2a、apple 2.4A charging protocol.
The encapsulated gallium nitride chip is from Biyi Micro, model KP22062A, with an integrated 650V 360M gallium nitride switch tube. The chip integrates the drive adjustment function, which can adjust the drive speed when the switch is turned on to optimize the EMI performance of the system. The KP22062A operates at frequencies up to 500kHz and can operate in quasi-resonant mode over the full range.
The chip supports ultra-wide VDD power supply range of 9V-112V, and supports 140 300 500kHz switching frequency. The chip directly detects the AC input voltage, supports the fast start function, the X capacitor discharge function and the standby power consumption of less than 30MW, meets the requirements of level 6 energy consumption, and integrates complete and comprehensive protection functions.
The synchronous rectifier chip built into the charger is from Biyi Micro, model KP40612, which is a rectifier chip with integrated 100V 10m synchronous rectifier tube, which can replace Schottky rectifier diode in GaN fast charging to improve system efficiency.
The KP40612 supports flyback, active clamp flyback, DCM, QR and CCM modes, 600kHz switching frequency, high-side and low-side configurations, wide output range voltage, intelligent turn-on detection and intelligent zero-crossing detection, and ASOP-6 package for enhanced heat dissipation.
Shenzhen Biyi Microelectronics Co., Ltd. 688045) is a high-performance analog and digital-analog mixed integrated circuit manufacturer, the main products include AC-DC, DC-DC, driver IC, linear voltage regulation, battery management, charging management, amplifiers, digital-to-analog converters, sensors, etc., providing one-stop chip solutions and system integration for customers in consumer electronics, industrial control, network communications, data centers, automotive electronics and other fields.
The charging head network learned that this charger uses Biyi Micro's encapsulated gallium nitride solution, using KP22062A encapsulated gallium nitride chip and KP40612 synchronous rectifier chip. Among them, the KP22062A integrates GaN devices, and with the drive adjustment function, it can intelligently adjust the GaN drive speed, optimize EMI performance, reduce the use specifications of EMI suppression components, and effectively reduce system costs. The other KP40612 supports multiple operating modes for a wider range of applications, and integrates MOS to replace traditional Schottky diodes, further improving the efficiency of the whole machine and making it easy to pass the Level 6 energy efficiency certification.
It can be seen that the combination of these two chips is very suitable for fast charging, smart plug-in boards, table charging and other scenarios that pursue high efficiency and high power density.