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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

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

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

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

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

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

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

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

Slide #

1

2

3

4

SW2

OFF

X

ON

Slide #

1

2

3

4

Not Used

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

Slide #

1

2

3

4

SW2

OFF

X

ON

Slide #

1

2

3

4

Not Used

SW1

OFF

ON

EC CHGD

Not Used

X

Thermoelectric Generator Transducer Input Selection on J18

SW3

Slide #

1

2

3

4

X

OFF

ON

X

Slide #

1

2

3

4

SW2

OFF

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

ON

Slide #

1

2

3

4

SW2

OFF

ON

X

Slide #

1

2

3

4

Not Used

X

SW1

OFF

ON

EC CHGD

Not Used

DS-72-13 Rev H

Page 5 of 15

CBC-EVAL-09

CBC-EVAL-09概述

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