原标题：Cypress S6SAE101A太阳能供电物联网设备开发方案

　　cypress公司的S6SAE101A是无线传感器节点的能量收获PMIC,集成了输出功率控制电路,输出电容存储电路以及电源开关电路,超低功耗工作(250nA),起动功率仅为1.2uW,太阳能电池板电压2.0V到5.5V,可调输出电压1.1V到5.2V,主要用在能量收获电源系统,蓝牙传感器,无线HVAC传感器,无线照明控制,安全系统和智能家庭/建筑物/工业无线传感器.本文介绍了S6SAE101A主要特性和应用例图,S6SAE101A00SA1002太阳能供电IoT设备开发套件主要特性,框图以及能量收获主板和BLE-USB桥板电路图与材料清单.

　　The S6AE101A is a power management IC (PMIC) for energy harvesting that is built into circuits of solarcells connected in series, output power control circuits, output capacitor storage circuits, and powerswitching circuits of primary batteries. Super-low-power operation is possible using a consumption current ofonly 250 nA and startup power of only 1.2 μW. As a result, even slight amounts of power generation can beobtained from compact solar cells under low-brightness environments of approximately 100 lx.

　　The S6AE101A stores power generated by solar cells to an output capacitor using built-in switch control,and it turns on the power switching circuit while the capacitor voltage is within a preset maximum andminimum range for supplying energy to a load. If the power generated from solar cells is not enough, energycan also be supplied in the same way as solar cells from connected primary batteries for auxiliary power.

　　Also, an overvoltage protection (OVP) function is built into the input pins of the solar cells, and the openvoltage of solar cells is used by this IC to prevent an overvoltage state.The S6AE101A is provided as a battery-free wireless sensor node solution that is operable bysuper-compact solar cells.

　　S6SAE101A主要特性:

　　 Input power selection control: Solar cell or primary battery

　　 Operated by solar cells without the need for primary batteries

　　 Storage of energy from power supply to storage capacitors

　　 Output power gating control, output voltage regulation

　　 Operation input voltage range

　　− Solar cell power : 2.0V to 5.5V

　　− Primary battery power : 2.0V to 5.5V

　　 Adjustable output voltage range : 1.1V to 5.2V

　　 Low-consumption current : 250 nA

　　 Minimum input power at startup : 1.2 μW

　　 Input overvoltage protection : 5.4V

　　 Compact SON-10 package : 3 mm×3 mm

　　S6SAE101A应用:

　　 Energy harvesting power system with a very small solar cell

　　 Bluetooth Smart® sensor

　　 Wireless HVAC sensor

　　 Wireless lighting control

　　 Security system

　　 Smart home / Building / Industrial wireless sensor

　　图1.S6SAE101A框图

　　图2.S6SAE101A应用电路例图

　　S6SAE101A00SA1002太阳能供电IoT设备开发板

　　Energy harvesting is the process by which energy is derived from external sources (e.g. solar or light energy, thermal energy, and kinetic energy) and stored for small, wireless autonomous devices like those used in Wireless Sensor Nodes (WSNs).

　　Energy Harvesting Devices (EHDs) provide a very small amount of power for low-energy electronics. Solar modules are the most popular EHDs, since they are readily available, easy to use, and low cost. The power generated is proportional to the the size of module and varies with brightness. Piezoelectric and electromagnetic EHDs generate AC power from kinetic energy such as vibration. They can generate large amounts of power with high voltage, but the challenge for these EHDs is to provide a vibration source of constant predictable frequency. Because of this, a typical application for a vibration EHD is attaching to a motor. A thermoelectric generator (TEG) can generate power with high current from heat. Similar to the vibration EHD, you have to ensure a constant temperature gradient for this device to provide usable power.

　　The Solar-Powered IoT Device Kit provides an easy-to-use platform for the development of a solar-powered IoT device with BLE wireless connectivity. It includes the S6AE101A Energy Harvesting Power Management IC (PMIC) device, which is ideal for solar- or light-powered Energy Harvesting Systems (EHS) since it only consumes 250nA. The S6AE101A also supports a hybrid EHS that uses a solar cell Energy Harvesting Device (EHD) along with a coin cell battery, and an optional vibration EHD with external diode bridge. The output voltage from the S6AE101A is configurable from 1.1V to 5.2V, supporting a broad range of device components for an IoT device. Also included in the kit is Cypress’ EZ-BLE™ PRoC™ Module (CYBLE-022001-00), a fully integrated Bluetooth Low Energy (BLE) module solution that offers high flexibility for a wide variety of IoT device uses. A USB port is provided by Cypress’ USB-UART LP Bridge Controller device (CY7C65213).

　　The Solar Powered IoT Device Kit provides everything needed to develop a light-powered sensor node that transmits sensor data using BLE:

　　 Operates using light (>200 lux) energy harvested by the included solar cell

　　− Supports the use of a vibration Energy Harvesting Device with an external diode bridge

　　− Also supports the use of a coin cell battery (optional, not supplied)

　　 Supports BLE communication with a PC through the provided BLE-USB Bridge that is pre-programmed with custom firmware for this kit

　　 Includes firmware that supports the following applications:

　　− Bluetooth Low Energy (BLE) Beacon, transmitting data at 1.5 sec intervals with ambient light as low as 200 lx

　　− Wireless Sensor Node (WSN), transmitting data at 6 sec intervals with ambient light as low as 200 lx

　　 Includes an expandable terminal on the Motherboard that can support the following:

　　− Reset button for EZ-BLE Module

　　− JTAG header to debug EZ-BLE Module

　　− Expandable sensor interface (I2C/UART/SPI/GPIO)

　　− DIP switch for future expansion (Not mounted)

　　− LEDs for USB power and status

　　 Includes reference schematic, BOM list, and layout data for easy design

　　 Uses the following Cypress Devices:

　　− S6AE101A ultra low power Energy Harvesting PMIC

　　− CYBLE-022001-00 EZ-BLE PRoC Module

　　− CY7C65213 USB-UART LP Bridge Controller

　　− MB39C022G LDO

　　S6SAE101A00SA1002IoT设备开发板应用:

　　 Battery-less wireless sensor node (WSN)

　　 IoT device that monitors various sensors

　　 BLE Beacon

　　 Wearable device

　　 Building Energy Management System (BEMS)

　　 Home Energy Management System (HEMS)

　　 Factory Energy Management System (FEMS)

　　 Wireless lighting control

　　 Wireless HVAC sensor

　　 Security system

　　图3.S6SAE101A00SA1002IoT设备开发板框图

　　图4.S6SAE101A00SA1002IoT设备开发套件外形图

　　能量收获主板

　　The Energy Harvesting Motherboard consists of the blocks shown in Figure 5.

　　- Energy Harvesting Power Management IC (S6AE101A)

　　- EZ-BLE PRoC Module (CYBLE-022001-00)

　　- USB Serial Converter IC (CY7C65213)

　　- LDO for USB bus power (MB39C022G)

　　- Temp & Humidity Sensor (Si7020-A10)

　　- Diode Bridge for the vibration energy input (1SS383 x2pcs)

　　- USB mini-B connector

　　- Jumpers with socket to select power supply

　　- MiniProg3 programing header for EZ-BLE

　　- 10pin expansion header for Energy Harvesting Power Management IC

　　- 10pin expansion header for EZ-BLE

　　- USB power LED

　　- Status LED

　　- Push switch for EZ-BLE reset

　　- Pads of DIP switch for future expansion (optional)

　　- Pads for BK-885 coin battery holder (optional)

　　- Pads for AM-1801 or BCS4630B9 solar cell (optional)

　　图5.能量收获主板外形图

　　能量收获主板材料清单:

　　BLE-USB桥板

　　The BLE-USB Bridge consists of the blocks shown in Figure 8. The initial firmware programmed into the BLE-USB Bridge does not support the CySmartTM Software Utility. Instead, the firmware is a custom version used for demonstrating the features of this kit.

　　- CYBL10162-56LQXI PRoC BLE device

　　- CY8C5868LTI-LP039 PSoC 5LP programmer and debugger

　　- Antenna matching network (AMN)

　　- Wiggle antenna

　　- 24-MHz crystal

　　- 32.768-kHz Crystal (bottom side)

　　- PRoC BLE external programming header

　　- PSoC 5LP Programming test points

　　- PRoC BLE reset button

　　- User button

　　- Power LED

　　- Status LED

　　- User LED

　　- Pads for P1_4 (PRoC BLE)

　　- Pads for P1_5 (PRoC BLE)

　　- USB plug

　　图8.BLE-USB桥板外形图

　　BLE-USB桥板材料清单: