CBC-EVAL-10 Datasheet, PDF (1/15 Pages) Cymbet Corporation – EnerChip™ CC Energy Harvester Evaluation Kit

CBC-EVAL-10
EnerChip™ CC Energy Harvester Evaluation Kit
System Features and Overview
CBC-EVAL-10 is a demonstration kit that provides
designers a platform to easily develop Energy
Harvesting (EH) solutions using the EnerChip
CBC3150^TM configured to operate in an energy
harvesting mode. The kit combines a small solar
panel, power management circuit, energy storage,
regulated output voltage, and input/output pins for
connection to commercially available microcontroller
(MCU) and radio boards. A 16-pin CBC51100 module
is included, providing the EH functions, battery
management, and 100µAh solid state rechargeable
energy storage. CBC-EVAL-10 is a practical, low
cost realization of an EH-based power system that
can provide many years of service without need of
battery maintenance.
• Controls charge voltage and discharge cutoff
circuit for maximizing the service life of the
EnerChip solid state batteries within the CBC3150
and auxiliary CBC050 energy storage device on
the CBC51100 module.
• Manages internal circuitry for switching from PV
power to EnerChip (or external battery) power when
ambient light level is too low to power the system
and/or recharge the energy storage devices.
CBC-EVAL-10 is shown in Figure 1, including the 16-
pin CBC51100 EnerChip EH module and the PV cells
attached to the board via a 2-wire cable assembly.
CBC-EVAL-10 has the following elements:
• Energy harvesting circuitry that matches the
impedance of photovoltaic cells to ensure
maximum power transfer to system load and on-
board energy storage devices
• Solid state energy storage with thousands of
charge-discharge cycles available
• Integrated battery management that controls
battery charging and discharge cutoff, ensuring
maximum service life of on-board storage cells
• Provision for additional energy storage (primary
or rechargeable batteries) with switchover
control circuit to meet application requirements
• Regulated output voltage with user-configurable
voltage settings
• Input/output headers for connection to system
components such as radios and microcontrollers
The photovoltaic (PV) panel included in the CBC-
EVAL-10 converts ambient light energy into electrical
energy, which is fed into the CBC3150 device
residing on the CBC51100 module. The CBC3150
performs several important functions:
• Decouples the load impedance from the PV cell
impedance to ensure maximum power conversion
efficiency from the PV transducer to the energy
storage and system load.
Figure 1: CBC-EVAL-10 Demo Kit.
A block diagram of CBC-EVAL-10 is shown in Figure 2.
Photovoltaic
Cells
Input Power Tracking
Battery Management
Power Management
Energy Storage
External Battery
and Control
(Optional)
Output Voltage
Regulation
I/O Control
Figure 2: EnerChip CBC-EVAL-10 Demo Kit block diagram.
The functions in the center block are performed by the
EnerChip CBC51100 module.
©2011 Cymbet Corporation • Tel: [phone] • www.cymbet.com
DS-72-20 Rev A
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