CBC915 EnerChip Energy Processor
EnerChip EP Solves the Challenges of Energy Harvesting
There are many exciting new applications that could use Energy Harvesting for powering devices. Unfortunately,
utilizing the “free” ambient energy surrounding a system is a complex design challenge, with many questions to
answer including:
•
•
•
•
•
•
How to interface to energy harvesting transducers?
How to convert low input power with high efficiency?
How to manage energy storage?
How to control power to the rest of the system?
How to best manage the system power states?
How to make the entire system “Energy Aware”?
The EnerChip™ Energy Processor solves these challenges by implementing an intelligent integrated approach to
Energy Harvesting Power Management.
Introducing Maximum Peak Power Tracking - the Key to High Efficiency Systems
In order to achieve maximum power transfer from an Energy Harvesting transducer, it is critical to match the
transducer impedance to the system load impedance. Therefore, Pmax is when R
T
=R
L
.
The EnerChip EP as the Energy Processing Stage serves to match the impedances of the transducer to the
power converter and decouples the system load from the energy conversion circuits while also controlling the
energy storage elements in the system.
Factory Test
DVDD
NC
DVSS
EC CHG
EN CAP CHG
RST
VGSENSE
MPPT
ECFB
CAPCHG
NC
NC
STATUS SW
AVSS
AVDD
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
EN VOUT
MODE SEL3
EN VCAP
CALIBRATE
LX
CUTOFF EN
MODE SEL2
ISOLATE EN
VCAP
MODE SEL1
MODE SEL0
CUTOFF RST
RXD
TXD
NC
NC
NC
NC
NC
EnerChip Energy Processor CBC915-ACB Pin Designations
©2012 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com
DS-72-15 Rev F
Page 2 of 16
CYMBET [ CYMBET CORPORATION ]
