e-peas AEM30940 RF 2.45 GHz User Guide

e-peas AEM30940 RF 2.45 GHz

FEATURES

Connectors

• 1 SMA connector for input power below -10dBm [LOW]
• 1 SMA connector for input power above -10dBm [HIGH]
• 1 screw connector + 1 JST connector for the Storage Element
• 1 screw connector for Primary Battery
• 1 screw connector for HVOUT LDO output (80mA @ 1.8 – 4.2 V)
• 1 screw connector for LVOU LDO output (20mA @ 1.2 or 1.8 V)

Configuration

1. 2 jumpers SELMMP[x] to define the MPPT ratio linked to the harvester technology
2. 3 Jumpers CFG[x] to define the storage element protection levels
3. 6 resistors footprint related to the custom mode (CFG[2:0]=000)
4. 2 jumpers to enable/disable the internal LDOs
5. 2 jumpers to define the primary battery minimum level
6. 1 jumper to set the dual cell supercapacitor BAL feature
7. 1 resistors footprint to use the ZMPP feature (constant impedance)

Size

• 79mm x 49mm
• 4 x M2.5 Mounting holes

SUPPORT PCB

BOM around the AEM30940

Matching network and RF rectifier schematic under NDA signature Footprint & Symbol: Available on the web product page

Configuration

• MPPT ratio: SELMPP0 – SELMPP1
• Storage Element voltages protection: CFG2 – CFG1 – CFG0
• BAL option: Select “ToCn” for dual-cells supercapcacitor and “GND” for any other storage
• PRIM option: Connect both jumpers “NoPRIM” or remove them if a primary battery is connected. Define the lower limit voltage on the primary battery using R7 and R8:
  • 100 kΩ ≤ RP ≤ 500 kΩ
  • RP) / 2.2 V
  • R9 = RP – R7
• ZMPP resistor footprint
• LDOs Outputs Voltages: ENHV (HVOUT) – ENLV (LVOUT)
• MATCHING NETWORK + RF RECTIFIER: one matching for LOW input power (< -10 dBm) and another matching for HIGH input power (< +20 dBm)
• Connect the Storage Element (and the Primary Battery)
• Connect the Load(s) to HVOUT / LVOUT
• Connect the antenna to the SMA connector
• Overall efficiency from the antenna to the storage element:
• Check the Status

References

• Energy Harvesting | Making Devices Energy Autonomous | e-peas

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>