Product Discontinued - Not for New Designs
CBC-EVAL-09
EnerChip™ EP Universal Energy Harvester Eval Kit
CBC-EVAL-09 is a universal energy harvesting (EH) evaluation kit that combines any one of multiple EH transducers
with the EnerChip
TM
EP CBC915 Energy Processor and the EnerChip CBC51100 100uAh solid state battery
module that has two 50µAh EnerChip solid state batteries connected in parallel. The purpose of this evaluation
platform is to enable designers to quickly develop Energy Harvesting applications. The EVAL-09 ships with a solar
cell for initial evaluation kit testing. A photo of CBC-EVAL-09 board is shown in Figure 1.
Solar
EM/RF
Thermal
Vibration
Features
EnerChip
CBC51100
Module
Demo Kit
Interface
Power
Out
Figure 1: CBC-EVAL-09 Demo Kit - 5 x 2 inches
System Description
There are several new technology advances on the EVAL-09: the ability to use any type of EH transducer, the
EnerChip Energy Processor that uses high energy efficiency Maximum Peak Power Tracking algorithms, and
EnerChip Solid State Batteries for energy storage when the EH transducer is inactive.
DC In
AC In
Bridge
Rectifier
Boost
Converter
Low Voltage
Charge Pump
Flyback Down
Converter
Low Voltage
Charge Pump
Energy Mgmt
Switching
V
OUT
GND
VDD
VREG
Feedback
HV DC In
HV AC1 In
HV AC2 In
Bridge
Rectifiers
Energy
Processor
CBC915-AC
PWM
Vin
Sense
Low Voltage
Battery Cutoff
TXD
RXD
EnerChip
CBC51100
Serial
I/O
Transducer Vin
Select & Sense
Figure 2: EnerChip CBC-EVAL-09 Demo Kit Block Diagram, with the CBC51100 EnerChip 100uAh Module
DS-72-13 Rev H
©2013-2014 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com
Page 1 of 15
CBC-EVAL-09 EnerChip EP Universal EH Eval Kit
EVAL-09 Block Diagram Explanations
This section describes the EVAL-09 functional blocks shown in Figure 2.
DC IN
- Energy Harvesting transducer input below 4.06V DC. Normally a photovoltaic cell.
AC IN
- Energy Harvesting transducer input below 4.06V AC. An example might be an electromagnetic input from
a flow
harvester.
HV DC IN
- Energy Harvesting constant impedance transducer input from 4.06V DC to 20VDC. Normally a
photovoltaic cell or higher voltage thermoelectric generator.
HV AC1 IN and HV AC2 IN
- Energy Harvesting transducer input from 4.06V DC to 20V AC. Normally a piezoelectric
vibrational harvester. A single input can be utilized on HV AC1. If two piezo electric beams are mechanically
coupled together in the same transducer unit, the two outputs can be connected to HV AC1 and HV AC2.
Bridge Rectifiers -
Rectifies from AC to DC for AC In or HV AC IN.
Boost Converter
- Boosts the DC In or AC IN voltage to 4.06 Volts.
Low Voltage Charge Pumps (2) -
Used to start up the CBC915 Energy Processor.
Flyback Down Converter
- Drop HV DC IN or HV AC1 IN/HV AC2 IN down to 4.06V.
Energy Processor
- EnerChip EP CBC915-AC Energy Processor finds the Maximum Peak Power Tracking point of
the EH transducer input, To locate the version of the CBC915-AC device that is on the EVAL-09 look at the back
of the EVAL-09 board on the label. A letter indicator of A, B, etc. will be found there which indicates CBC915-ACA,
CBC915-ACB, etc. Functional details of each EnerChip EP version are documented in the Datasheet DS-72-15.
Transducer Input Voltage Select and Sense Switches
- Monitors all input voltages and connects to the Energy
Processor.
EnerChip CBC51100 Solid State Battery Module
- Two EnerChip 50uAh solid state batteries (CBC3150 and
CBC050) for energy storage.
Low Voltage Cut-off
- Should the voltage on the EnerChips fall below 3.0VDC, this circuit disconnects the
batteries so they do not discharge further.
Energy Management Switching Matrix -
Controls the routing of Vout to the system load. User selectable
switches indicate the EH transducer input to voltage output.
Serial I/O
- These 2 communications lines connect the Energy Processor to another microcontroller such as the
TI MSP430 MCU on the eZ430-RF2500 demo kit wireless end device that would plug into connector J9.
DS-72-13 Rev H
©2013-2014 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com
Page 2 of 15
CBC-EVAL-09 EnerChip EP Universal EH Eval Kit
CBC-EVAL-09 Module Connectors and Switches
J18
J19
TP4
TP10
J15
J16
J17
TP11
SW3
1
2
3
4
O
N
TP2
J3
TP1
J4
TP8
1
TP9
TP5
J12
TP7
J9
1
SW1
O
N
SW2
1
2
3
4
LEDs
S2
TP3
1
2
3
4
O
N
EnerChip
1
CBC
U2
51100
J10
Module
J7
TP6
Figure 3: EnerChip EVAL-09 Connections, Test Points and Switches
J18 Low Voltage DC Input
Pin Number(s)
1
2
Designation
Positive input
GND
Test Points for User
TP Number
1
2
3, 4, 5
6
7
8
9
10
11
Designation
4.06V
EPVCC
GND
VCAP
J9 Connector for User
Pin Number(s)
1
2
3
4
5
6
Designation
RXD
GND
Not
Connected
Not
Connected
Connector Type: 2 pin 100mil
J19 Low Voltage AC Input
Pin Number(s)
1
2
Designation
AC input
AC input
V
OUT
VBAT
VEC
HV DC Vin
DC Vin
V
OUT
TXD
Connector Type: 2 pin 100mil
J15 High Voltage DC Input
Pin Number(s)
1
2
Designation
Positive input
GND
Connector Type: Rt. Angle SIP
J10 Connector for User
Pin Number(s)
Designation
1
2
3
4
5
Connector Type: Clip Lead
J3 EnerChip EP Pins
Pin Number(s)
1-19
Description
See CBC915
Datasheet
TXD
RXD
V
BAT
GND
V
OUT
Connector Type: 2 pin 100mil
J16 High Voltage AC Input 1
Pin Number(s)
1
2
Designation
AC input 1
AC input 1
Connector Type: Circular pad
J4 EnerChip EP Pins
Pin Number(s)
20-38
Description
See CBC915
Datasheet
Connector Type: Vertical SIP
J7 Connector - External Battery
Pin Number(s)
1,2
Description
Bypass Diode
Connector Type: 2 pin 100mil
J17 High Voltage AC Input 2
Pin Number(s)
1
2
Designation
AC input 2
AC input 2
Connector Type: Circular pad
Connector Type: Circular pad
J12 Connector - External Battery
Pin Number(s)
1
2
Description
Vextbat input
GND
Connector Type: 2 pin 100mil
Connector Type: Circular pad
DS-72-13 Rev H
©2013-2014 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com
Page 3 of 15
CBC-EVAL-09 EnerChip EP Universal EH Eval Kit
EVAL-09 Module Connector and Test Point Explanations
The purpose and use of the connectors identified in Figure 3 and in the previous tables are:
J1, J2, J8, J11, J13, J14 Connectors
- not user accessible.
J3 Connector
- EnerChip EP pins 1-19 probe points and access vias.
J4 Connector
- EnerChip EP pins 20-38 probe points and access vias.
J5, J6 Connectors
- EVAL-09 debug interface connectors for development system access. Contact Cymbet
Applications Engineering for additional details if required
.
J7 Connector
- Bypass diode circular pad trace to select an optional external rechargeable lithium battery
with 4.1V charging voltage.
J9 Connector
- Six pin right angle connector for serial port, Vout and Ground. Normally used for connection to
TI eZ430-RF2500 wireless end device or another target system.
J10 Connector
- Five pin vertical connector for user access to serial port, Vout and Ground.
J12 Connector
- Access vias for an optional external rechargeable lithium battery with 4.1V charging voltage.
J15 Connector
- High Voltage DC Input from EH Transducer such as a thermoelectric generator (TEG).
J16 Connector
- High Voltage AC Input 1 normally used by a piezoelectric EH transducer.
J17 Connector
- High Voltage AC Input 2 normally used by a piezoelectric EH transducer .
J18 Connector
- Low voltage DC Input normally used by a photovoltaic cell.
J19 Connector
- Low voltage AC Input normally used by a thermoelectric generator or electromagnetic
generator.
Cable Assembly
- A 5-conductor cable with a header connector at each end is provided with CBC-EVAL-09 to
facilitate connection between the J5 connector and a 5-pin header on the user’s board.
TP1
- the output of the boost converter or FLYBACK converter capacitor. Typical value is 4.06V.
TP2
- EPVCC - Voltage used to power the CBC915 device should be 3.6V
TP3, TP3, TP5
- Ground
TP6
– VCAP – voltage of the output capacitor should be 3.6V
TP7–
VOUT – output voltage to the target system should be 3.6V
TP8
– VBAT – output of battery cut-off circuit should be 4.06V
TP9
– VEC – EnerChip output voltage feeding battery cutoff circuit should be in the range of 4.06VDC to
3.0VDC. Caution: do not leave voltmeter or scope probes attached to this TP. Will discharge EnerChip.
TP10
– HV V In – DC voltage from the HV DC In or HV AC1 IN or HV AC2 IN ports
TP11
– V In – DC voltage from the DC In or AC1 IN ports
DS-72-13 Rev H
©2013-2014 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com
Page 4 of 15
CBC-EVAL-09 EnerChip EP Universal EH Eval Kit
EVAL-09 Transducer Input Switch Settings
There are 3 DIP slider switches on the EVAL-09 for use in selecting the Energy Harvesting Transducer input to
the rest of the on-board circuitry. The location of the switches are shown on the EVAL-09 layout diagram shown
in Figure 3. There can be only one EH transducer attached to the EVAL-09 at any time. Combining transducer
inputs is not supported. SW1 dictates sequence of when the EnerChips are connected to VOUT - either the
EnerChip is charged prior to being connected to VOUT (SW1 ON), or the EnerChip is connected to VOUT prior
to being charged (SW1 OFF). In the following SW1 tables, if slide switch 1 is ON, it means the EnerChips are
charged prior to being connected to VOUT.
Photovoltaic (Solar) Cell Transducer Input Selection on J18
SW3
Slide #
1
2
3
4
OFF
ON
X
X
X
X
Slide #
1
2
3
4
SW2
OFF
X
X
X
X
ON
Slide #
1
2
3
4
Not Used
X
X
SW1
OFF
ON
EC CHGD
Not Used
Electromagnetic/RF Generator Transducer Input Selection on J19
SW3
Slide #
1
2
3
4
OFF
ON
X
X
X
X
Slide #
1
2
3
4
SW2
OFF
X
X
X
X
ON
Slide #
1
2
3
4
Not Used
SW1
OFF
ON
EC CHGD
Not Used
X
X
Thermoelectric Generator Transducer Input Selection on J18
SW3
Slide #
1
2
3
4
X
OFF
ON
X
X
X
Slide #
1
2
3
4
SW2
OFF
X
X
X
X
ON
Slide #
1
2
3
4
X
Not Used
SW1
OFF
ON
EC CHGD
Not Used
X
Piezoelectric Generator Transducer Input Selection on J16 and/or J17
SW3
Slide #
1
2
3
4
OFF
X
X
X
X
ON
Slide #
1
2
3
4
SW2
OFF
ON
X
X
X
X
Slide #
1
2
3
4
Not Used
X
X
SW1
OFF
ON
EC CHGD
Not Used
DS-72-13 Rev H
©2013-2014 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com
Page 5 of 15
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