应用领域：电源电池

方案类型：成品

主控芯片：ST

方案概述我司专注于智能硬件方案设计开发，从事过无线充领域方案开发，有丰富的开发经验，目前有做过无线快充、蓝牙无线充音箱、无线充台灯等产品，欢迎提需求，为您私人订制产品。

产品定位：

时尚、办公人群，居家人群，休闲会所

产品主要功能：

1、苹果无线快充

2、三星无线快充

3、兼容普通5V1A无线充电

4、能量转换效率可达83%以上

5、支持QI协议

6、支持加热马克杯

产品主要特点：

1、手机无线快充，无线插线，方便充电

2、水杯加热

STWBC-EP

Digital controller for wireless battery charger transmitters (WBC) in 15 W medium power applications

The STWBC-EP is the digital controller for the wireless battery charger (WBC) transmitters (TX) from STMicroelectronics optimized for Extended Power Profile (EPP) Wireless Power Consortium (WPC) 1.2 certified applications up to 15 W.

It offers the most flexible and efficient solution for controlling the power transfer to a receiver (RX) in WBC-enabled applications such as smartphones, tablets and other battery-powered devices that use the electromagnetic induction for recharging.

The TX is responsible for controlling the transmitting coil and generating the correct amount of power requested by the RX. The RX continuously provides the transmitter with the correct power level requested, by modulating the transmitter carrier through the controlled resistive or capacitive load. Generating the correct amount of power ensures the highest level of end-to-end efficiency due to reduced energy losses. It also helps maintaining a lower operational temperature.

The TX can adapt to the amount of energy transferred by the coil by modulating the frequency, duty cycle or amplitude of the PWM voltage on the transmitting coil.

The STWBC-EP is capable of bidirectional communication with the RX as specified by the WPC 1.2 protocol.

Key Features

Digital controller for wireless battery charger transmitter

15 W single coil inductive transmitters optimized for:

Cell phones and smartphones

Tablets and phablets

Charging accessories

Support for Wireless Power Consortium (WPC) 1.2 EPP 15 W certified applications

Backward compatible with 5 W WPC 1.1 applications

Support for half bridge topology with DC/DC

VIN range: 3 V to 5.5 V

Supports USB Vin

Active presence detector

Foreign object detection

Q-factor measurement

Parametric customization via GUI

Turnkey firmware solution

Peripherals

10-bit ADC

UART interface

I2 C master fast/slow speed rate

GPIOs

Memory

Flash and EEPROM with read-while-write (RWW) and Error Correction Code (ECC)

Program memory: 32-Kbyte Flash; data retention: 20 years at 55 °C after 1000 cycles at 55 °C

Data memory: 1 Kbyte true data EEPROM; data retention: 20 years at 55 °C after 1000 cycles at 85 °C

RAM: 6 Kbytes

Transmitter reference design:

WPC Qi 1.2.3 certified

MP-A10 single coil 15 W topology

Evaluation board order code: STEVAL-ISB044V1

2-layer PCBs

Active object detection

Graphical User Interface for application monitoring

Operating temperature: -40 °C up to 105 °C

Package: VFQFPN32 - 5 x 5mm

STWLC33感应式无线电源接收器

STMicroelectronics STWLC33感应式无线电源接收器采用Qi 1.2和AirFuel感应式无线标准通信协议。该款电源接收器可切换为发射器模式以为另一台接收器供电。STWLC33感应式无线电源接收器设有集成的高效率同步整流器、低压差线性稳压器以及输入电压调节环路。典型应用包括手机、移动电源、导航系统以及可穿戴设备。

FEATURES

32MHz脉宽调制器 (PWM) 计时器

Qi 1.2和AirFuel感应式无线标准通信协议

可配置通用输入/输出 (GPIO)

系统总效率高达80%

I2C接口

Rx模式下的输出功率高达15W

支持Tx模式

集成高效同步整流器

热保护

应用

手机

个人数字助理 (PDA)

移动电源

导航系统

可穿戴设备

医疗和保健仪器

框图