Developer’s Kit: WiT-2000
WiTricity technology
transfers energy over
distance and through
materials in a manner
that is safe, efficient,
and cost effective.
The developer’s kit
enables users to
evaluate and apply
WiTricity’s technology
for wireless energy
transfer.
Included but not pictured: Instruction manual, technical specifications for developers, Bills of Materials, online
application support, DC power supply, duplicate set of the above with unpackaged internals.
Putting Wireless Power Transfer to Work
The WiT-2000 Kit enables users to evaluate, demonstrate, and develop applications for
WiTricity’s patented (US 7,825,543 & US 7,741,734) and patent pending technology for
wireless energy transfer. The modules can be configured by the user to provide wireless
charging and battery free direct powering of devices when used within the range of the
WiTricity energy source. Included with the kit are resonating repeater pads which allow
energy “hopping” and further increase the range of wireless energy transfer. The kit also
demonstrates WiTricity’s unmatched ability to transfer energy without requiring precise
alignment or close proximity, thereby providing great application flexibility to the
developer.
The WiT-2000 Developer’s Kit empowers users to apply the kit to a variety of applications.
In addition to the packaged kit pictured above, the kit also includes duplicate unpackaged
internals to facilitate further development by the user. Information to support the
developer includes the instruction manual, circuit schematics, PCB layout details (Gerber
Files), and PADS layout files for the WiTricity source, capture, and repeater circuit boards.
Also included are the Bills of Materials including Approved Vendor List (AVL) for source,
device, repeater boards, mechanical CAD files, and online support.
Kit Includes
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(2) WiTricity wireless energy
source, including integrated
WiTricTM power amplifier and
WiTricity High-Q Source Resonator
pad
(2) WiTricity energy capture
modules, including WiTricTM
power converter and WiTricity
High-Q Capture Resonator
(1) WiTricity wirelessly powered
LED light (with integrated WiTricity
energy capture module)
(2) WiTricity High-Q Resonant
Repeaters
(1) DC power supply
Full circuit schematics, layout
details, Bills of Materials, CAD
files, etc.
A duplicate kit set of un-packaged
internals to facilitate development
by the user
Wireless power transfer is now a reality
The Development Kit
Energy “hopping” increases range
The WiT-2000 Kit provides a complete
set of energy source and capture
modules that can be integrated with a
wide variety of user supplied electronic
devices. These modules are provided in
enclosures, to facilitate rapid prototyping
and demonstration, and in un-packaged
board level form to facilitate further
development by the user. The kit also
provides documentation that enables the
user to modify the basic WiTricity
reference designs, evaluate bills of
material costs, and manufacture
additional samples for internal
development purposes. Additional
board level and packaged modules are
available for purchase from WiTricity.
The distance over which energy can
transferred can be extended through
the use of WiTricity High-Q resonant
repeaters. A High-Q resonating repeater
is a tuned resonant coil that can be
packaged as a very thin and flexible
substrate. It is not connected by wire to
an energy source; instead, it enables the
magnetic field created by the WiTricity
source resonator to "hop" over a
distance from the source to a capture
device. This patented technology is an
extremely effective method of
extending the distance range of a
wireless energy transfer system. Such
resonant repeaters have been deployed
in single unit configurations, placed on
or integrated into a piece of furniture,
and in multiple unit configurations,
deployed in building materials such as
carpeting, floor tiles, or wall panels--to
extend energy transfer distance range
over an entire room.
Commercial use and sale of products
based on WiTricity technology requires
an IP license from WiTricity, or the
purchase of licensed production level
modules from WiTricity or other
authorized resellers and component
manufacturers. Please contact WiTricity
sales for further information regarding
licensing and purchase of production
volumes of components.
Simplified Charging Pad Architecture
The WiTricity source resonator is
constructed using a single large High Q
coil wound near the perimeter of the
WiTricity Technology
pad. A single power amplifier inside the
source is used to excite the source
WiTricity technology transfers energy by
resonator. Multiple High Q capture
harnessing the power of highly resonant
devices can couple to this single source
magnetic coupling. The WiTricity wireless
resonator, enabling multi-device
energy source converts a DC input
charging at minimum cost. In contrast,
voltage to a 250 kHz AC signal. The AC
first generation inductive charging
signal is used to energize the WiTricity
solutions require precise alignment of
High Q resonator, which creates a 250
the source and capture devices, often
kHz oscillating magnetic field around the
relying on permanent magnets or other
resonator. When a WiTricity High Q
mechanical methods to fixture the
capture resonator is brought within
capture device in place. The WiTricity
range of the source, the resonators
architecture therefore has compelling
couple and the oscillating source
cost and performance advantages over
magnetic field induces electrical current
multi device charging pads built using
to flow in the capture resonator. This
traditional inductive coupling. It avoids
alternating current is rectified (converted
the cost and complexity of moving parts
to DC), regulated to a specific DC voltage,
and redundant coils and amplifier
and output to an external load. “High Q”
circuits, resulting in a more reliable and
refers to the Quality Factor of the
lower cost design.
resonators, WiTricity technology that is
essential for efficient energy transfer
over distance.
Energy Transfer Over
Distance and through many
materials
The WiT-2000 Kit components
are designed to transfer energy
over distances ranging from less
than a centimeter (directly on
the surface of the charging pad)
to distances totaling several
tens of cm. The WiT-2000
technology is based on fixedtuned source architecture. This
means that the charging pad is
optimized to transfer energy at
maximum efficiency at a predetermined distance. The
charging pad is optimized for
transferring energy over a
distance of from 15-30 cm
directly to the LED light or over
even longer distances via a
resonant repeater (see below),
and it can also transfer energy
to devices placed directly on the
pad. The ability to transfer
energy over distance means
that the pad can be hidden from
view behind a wall, or under a
table top, and still provide
useful levels of power to devices
placed on or near the work
surface. The system can
efficiently transfer energy
through non-conductive
materials, such as wood, plastic,
glass, concrete, fabric, wall
board, water, oil, and even
human or animal tissue
Contact Us
WiTricity
149 Grove Street
Watertown, MA 02472
617.926.2700 ph
617.926.2745 fx
To discuss possible applications:
applications@WiTricity.com