DS-72-40 Datasheet, PDF (1/17 Pages) Cymbet Corporation – EnerChip™ CC Energy Harvester Evaluation Kit

Product Discontinued - Not for New Designs
CBC-EVAL-10B
EnerChip™ CC Energy Harvester Evaluation Kit
System Features and Overview
CBC-EVAL-10B is a demonstration kit that provides
designers a platform to easily develop Energy
Harvesting (EH) solutions using the EnerChip^TM
CBC3150 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 as a
daughter board, providing the EH functions, battery
management, and 100µAh of solid state rechargeable
energy storage. CBC-EVAL-10B 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 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-10B is shown in Figure 1. The CBC-EVAL-10B
kit block diagram is shown in Fig. 2.
CBC-EVAL-10B 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
• Input overvoltage protection and extra high
impedance for use with smaller solar cells
• Input/output headers for connection to system
components such as radios and microcontrollers
• On-board charge status LED and push-button
The photovoltaic (PV) panel included in the CBC-EVAL-
10B 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:
• Matches the load impedance of the PV transducer
to the EnerChip impedance to ensure maximum
power conversion efficiency from the PV cells to the
energy storage and system load.
Figure 1: CBC-EVAL-10B Demo Kit.
Photovoltaic Cells
Input Power Tracking
Start-Up Current Mgmt.
Overvoltage Protection
Battery Management
Power Management
Energy Storage
External Battery
and Control
(Optional)
Output Voltage
Regulation
I/O Control
Figure 2: EnerChip CBC-EVAL-10B Demo Kit block diagram.
The functions in the center block are performed by the
EnerChip CBC51100 module.
©2014 Cymbet Corporation • Tel: [phone] • www.cymbet.com
DS-72-40 Rev C
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