LEDeep, LLC Snapshot
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Power-Factor Corrected Solid-State Lighting for
use in high-power LED applications, which
improves the efficiency of SSL.
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Early stage, seeking seed funding
zFounded 2004
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Sole Proprietor
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New York State Limited Liability Company
zPatents Pending
Why Solid-State Lighting...
$0 $500 $1,000 $1,500 $2,000 $2,500 2008 2009 2010 2011 U S $ M illio n s Illumination HDTVOpportunity for PFC-SSL
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High-Power LED Market Estimates
(US$MM)− Flat Panel HD-TVs can use 5000 LEDs per TV, which is a prime
target for a PFC-IC for use with discrete LEDs.
− General Illumination applications would benefit from a full custom
PFC-SSL IC, with PFC and LEDs integrated on a single chip.
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Technology Trends
→ Incandescent → Fluorescent
→ Compact Fluorescent
→ Solid State Lighting (“SSL”) LEDs
Challenges to Solid State Lighting
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SSL without Direct AC (Typical)
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AC to DC conversion losses of approx 7%
zSSL with Direct AC without PFC (Competitor)
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Saves approx. 7% AC-DC energy losses
−Smaller lamp size – no power “brick”
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Socket compatible with Incandescents/CFLs
zSSL with Direct AC and with PFC (LEDeep)
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Less noise on power line
LEDeep Technology Overview
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Power-Factor-Corrected Solid-State Lighting
−Directly power LEDs from the grid.
z Eliminates the AC to DC power conversion
z Electric utilities charge more for non-unity power factors,
and the PFC is a near unity PF usage
z Power supply monitoring allows PFC to assist the whole
circuit to have improved PF.
z Helps fix poor PF from other devices on the same utility
circuit, including Compact Fluorescent lamps, motors, compressors.
PFC correction circuit turns on the number of LEDs
that draws a near-linear current as the AC voltage varies from 0 volts to
115/230 Volts.
Pseudo-resistive load
Adding intelligent controls allows for this topology to absorb the noise from
other energy consumers to help the overall circuit have a unity power-factor.
PFC-SSL Integration Nodes
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No Integration: Discrete PFC with Discrete LEDs
− Low NRE, high component costs, Low volume app.
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Mixed Integration: PFC IC with Discrete LEDs
− Moderate NRE, Moderate component costs, TV app.
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Full Integration: PFC-SSL Integrated Circuit
− Single Chip solution (3 pads on IC) − High NRE, low component cost
Potential Applications of PFC-SSL
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Current
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Power-Factor-Corrected Solid-State Lighting
z HD TV Back-lighting
− PFC-IC with discrete LEDs
z General Purpose Lighting
− Full PFC-SSL IC with integrated LEDs. z
Future
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Additional applications are possible. LEDeep has
targeted some new applications which cannot be
discuss at this time without a CDA.
Development Strategy
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Option 1: Printed Circuit Board, No Integration
−6 months from $ to PFC PCB, $500K NRE
zOption 2: Mixed Integration
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1 Year from $ to PFC IC, $1MM NRE
zOption 3: Full Integration
IP Strategy
z A divisional patent application can be filed with claims related
to PFC-SSL, and additional patent applications can be filed.
z Original US Pat App. 2007/0276455 as a base for divisional
patent application claiming PFC-SSL:
− “... A final aspect of the invention provides various
circuits that may be used to power the LEDs used in the present systems and devices. ... FIG. 15 shows a direct line voltage power supply that has a useful
near unity power factor LED transfer function which is useful to remove the need for a switching power supply utilizing resistor ladder network to creates bias for transistors. ...”
Management
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Peter Fiset
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BS Chem. Eng., U. Michigan, Ann Arbor.
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MS Comp. Sys. Eng., Rensselaer Polytechnic
Institute., Troy, NY
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Previously developed solid-state storage
devices, IT infrastructure, micro-controller
applications, power supply design.
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Additional management hired upon conversion
Funding Sought
6 Months
− $500K for Option 1: Printed Circuit Board PFC − Contract engineer to assist
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1 Year
− $1MM for Option 2: PFC IC, Mixed Integration − Contract IC engineer(s) for Analog IC design.
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2 Year
− $5MM for Option 3: PFC-SSL, Full Integration
