TE-POWER-PLUS Micropelt, TE-POWER-PLUS Datasheet - Page 6

• Manufacturer Part Number: TE-POWER-PLUS
• Description: Power Management Modules & Development Tools SM THERMAL ENERGY HARVESTING DEV KIT
• Manufacturer: Micropelt
• Type: Energy Harvestingr

Specifications of TE-POWER-PLUS

• Input Voltage: 0.27 V to 2 V
• Output Voltage: 1.6 V to 5 V
• Board Size: 63 mm x 30 mm x 34 mm
• Maximum Operating Temperature: + 105 C
• Product: Power Management Modules
• Dimensions: 63 mm x 30 mm x 34 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.3 Power Output
Energy harvesting using a thermoelectric generator (TEG) is ideal for low power duty cycle applications. The raw
TEG output is converted to a constant voltage by our custom DC converter. The generated power directly feeds
the system’s sleep power consumption. Surplus energy is stored in a capacitor or rechargeable battery for use
during the load’s active cycle. The following power supply modules are compatible with the TE-Power BASE har-
vester:
DPM: Direct Power Module for direct access to the TEG output. Requires external power conversion and condi-
DBM: DC Booster Module providing an adjustable output voltage in the range of 1.6 ... 5V. This module requires
3.4 DBM Functionality
The DC Booster Module
accepts the low-voltage
TEG output and delivers
a higher, user-adjustable
output voltage ranging
from 1.6 to 5.0 V.
The central element of
the circuit is storage ca-
pacitor C1 (refer to sche-
matic diagram). The har-
vested energy gradually
charges C1 while the load draws current out of it. The charge current of C1 is related to the thermal gradient that
the TEG experiences, the load current depends on the application.
It’s important that the application itself manages its power intake to prevent C1 from discharging below the set
voltage (TR1), leading to the DBM’s output dropping out of regulation. Thus, if a specific threshold voltage is un-
der-run, the attached application must temporarily revert to a sleep state with minimum current draw so that C1
can recover charge.
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tioning. TEG output voltage increases with
external power conditioning (not part of the kit).
V
TEG
∆T.
This module is part of each kit.
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OUT