At present, the charging interfaces of smart small appliances on the market are still USB Micor, AC, DC interfaces, etc. This year, with the order of the European Union, on December 24, 2022, the European Council finally approved the "unified charger interface within the EU " Bill. This means that by 2024, the usb type-c interface will become a must-have for a series of electronic devices, such as smart home appliances such as mobile phones, tablets and earphones.
According to news, the European Parliament passed a new regulation on October 4, requiring that from the end of 2024, all new portable smart devices such as mobile phones and tablets should use USB Type-C charging ports. According to estimates, this move can reduce 11,000 tons of electronic waste every year.
Since the vast majority of Apple products currently use lightning interfaces, market analysts believe that Apple will become one of the companies most affected by this new regulation. Most directly, Apple's next-generation mobile phone product, iphone 15, may be forced to use the usb type-c charging interface.
Apple could switch the charging port to usb type-c starting with the iphone 15 in 2023, before switching over to air pods and other accessories, which would allow apple to switch many of its affected devices to usb type-c before the eu directive goes into effect- c.
This new EU regulation has sparked heated discussions among Chinese netizens. Some netizens said, "It is worth promoting in the global market, and it supports a unified charging interface." Some netizens also said, "Will Apple's type-c interface be specially made, and Android devices cannot use it?" ""Change the interface, will the price increase?"
In the past few years, we have seen the popularization trend and speed of the USB Type-C port, especially in the field of electric tools and smart home, such as electric curtains, smart desk lamps, electric guide rails, hand-held electric tools, etc., which have been upgraded from traditional charging methods It has become a fast charge through the USB-C port. By using the USB-C port, the speed of battery charging is greatly improved. For example, some power tools can be more than half charged in 15 minutes. After the introduction of the PD3.1 standard, the upper limit of fast charging power reaches 240W. This change allows USB Type-C to provide sufficient charging power for more devices, including some large electronic devices that require higher power charging, Internet of Things devices, communication and security equipment, automotive and medical equipment, etc. For example, the high power of 240W (48 V 5A) can even meet the charging demand of two-wheeled electric vehicles The 240W fast charging interface has become a new proposition.
One: Type-c interface
Type-C interface is a new type of USB interface, which can support higher data transmission speed.
Market opportunities
There are two common types of fast charging standards on the market, one is initiated by industry associations, such as USB PD, UFCS; the other is initiated by mobile phone and chip companies, such as QC, VOOC, SCP, FCP, AFC, PE etc. Commonly used protocol standards in overseas markets are USB PD, QC Samsung AFC fast charging protocol.
In the EU's collection of future unified fast charging standards, these standards have the opportunity to be submitted to the EU for reference, but only 1 or 2 of the finally adopted can be implemented. Among them, the competition of USB PD and UFCS is the most eye-catching, one is from the United States and the other is from China.
There are also precedents in 5G standards, such as TDD and FDD, and both technologies have been developed side by side. Whether USB PD and UFCS can both enter the fast charging standard recommended by the European Union is also the focus of the industry.
The market is full of challenges, but it also brings opportunities. Let us once again get acquainted with the latest developments of these two dark horses.
On May 25, 2021, the USB-IF Association launched the latest fast charging standard USB PD3.1. According to the information released by the USB-IF Association, in the extended power range EPR, three fixed voltage levels of 28V, 36V and 48V and three adjustable voltage levels (Adjustable Voltage Supply, AVS for short) have been added.
After briefly introducing the power of PD fast charging, the next step is to introduce how to design TYPE-C interface charging for consumer electronics products.
Devices that support PD must use cc logic chips. USB Type-C currently supports up to 20V/5A. In this case, it must correspond to USB PD. That is to say, since an additional PD chip is required, please do not think that the USB Type-C connector can support 20V/5A.
1: Consumer electronics that only require 5V voltage input.
If you only need the regular 5V output of the PD adapter, you only need to pull down the 5.1K resistors on the pins CC1 and CC2 of the TYPE-C female terminal respectively to realize the 5V input to supply power to the device.
CC1 and CC2
USB-PD's identification of power supply equipment relies on these two pins, and requests power supply from the power supply terminal. In a simple design, a 5.1k resistor can be independently pulled down to ground through CC1 and CC2. For embedded designs that require high-power power supply or high-definition video transmission functions, a USB-PD control chip must be used. (The USB-C interface on the Raspberry Pi 4, its CC1 and CC2 are connected together, and share a 5.1k resistor to pull it down to the ground. Because it uses a 5.1k resistor, it is compatible with many USB The Type-C charger is not compatible, and the power supply is overturned)
2: Consumer electronic products that need to support 9V/12V/15V/20V power to power devices.
Devices that support PD must use cc logic chips. USB Type-C currently supports up to 20V/5A. In this case, it must correspond to USB PD. That is to say, since an additional PD chip is required, please do not think that the USB Type-C connector can support 20V/5A.
Overview LDR6328 is a communication chip compatible with USB PD and QC developed by
Ledry Technology Co., Ltd. for the USB PD protocol and Qualcomm Quick Charge (referred to as QC) protocol .
The input end is mainly connected to the adapter of PD and QC, and the output end is configured to output a fixed
voltage. The LDR6328 draws power from an adapter that supports USB PD and QC protocols, and then supplies power to the device. For example, the adapter can be configured
to output the required power to supply power to the wireless charger device.
2. Features
◇ Adopt SOP-8 package
◇ Compatible with USB PD 3.0 specification, support USB PD 2.0
◇ Compatible with QC 3.0 specification, support QC 2.0
◇ Compatible with Samsung AFC protocol
◇ Can automatically trick PD to output 5V, 9V, 12V, 15V, 20V voltage , QC/AFC output 9V, 12V voltage
3. Application
◇ All devices that need adapter (support USB PD and QC, Samsung AFC protocol) power supply
◇ Fascia gun, electric fan, lighting, Bluetooth speaker, air pump, camera and other consumption electronic equipment
Summary: The peripheral of the chip is simple, the solution is mature and stable, and the domestic adapter has been specially processed for compatibility. It is very suitable for small household appliances to be used with the TYPE-C interface. Many well-known domestic manufacturers are using it. The solution is stable, mature and reliable. Welcome to leave a message Request sample DEMO.