e-peas AEM00940 Ambient Energy Manager User Guide

AEM00940 Ambient Energy Manager

AEM00940

Quick Start Guide EVK

FEATURES

Connectors

• 1 screw connector for the source (SRC) + 2 screw connectors for AC input signal (LF/MF)
• 1 screw connector + 1 JST connector for the Storage Element (BATT)
• 1 screw connector for Primary Battery (PRIM)
• 1 screw connector for HVOUT LDO output (80mA @ 1.8 – 4.2 V)
• 1 screw connector for LVOUT LDO output (20mA @ 1.2 or 1.8 V)

Configuration

• 2 jumpers SRC_LVL_RANGE[1:0] to define the GAIN ratio linked to the harvester technology …
• 3 Jumpers CFG[2:0] to define the storage element protection levels
• 6 resistors foot print related to the custom mode (CFG[2:0]=000)
• 2 jumpers to enable/disable the internal LDOs
• 2 jumpers to define the primary battery minimum level
• 2 resistors to define the harvesting level
• 1 potentiometer to define the harvesting voltage
• 1 jumper to set the dual cell supercapacitor BAL feature

Size

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

SUPPORT PCB

BOM around the AEM00940

Footprint & Symbol: Available on the web product page

www.e-peas.com © 2022 e-peas S.A. V1.0

STEP 1:  AEM00940 Configuration

• Source range: SRC_LVL_RANGE[1:0]

• Storage Element voltages protection: CFG[2] – CFG[1] – CFG[0]

• 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

• R7 = ( *RP) 2.2 V

• R9 = RP – R7

• LDOs Outputs Voltages: ENHV (HVOUT) – ENLV (LVOUT)

• Source level: Use the potentiometer or resistors R9 and R10 in combination of the source range functionality to define the harvesting voltage.

• 100 kΩ ≤ RS ≤ 500 kΩ

• R10 = ( * RS) / 2.2 V

• R9 = RS – R10

STEP 2: Connect the Storage Element (and the Primary Battery)

STEP 3: Connect the Load(s) to HVOUT / LVOUT

STEP 4: Connect the Harvester

• Internal Boost efficiency Vs. input voltage:

STEP 5: Check the Status

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