PROJECTOR SYSTEM WITH SINGLE INPUT, MULTIPLE OUTPUT DC-DC CONVERTER
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
Jun 1, 2012
filing date -
Nov 22, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A projector system with a single DC-DC converter having a single inductor is disclosed. A single DC-DC converter receives an input voltage and connects to two or more light sources such that each light source receives the same DC-DC converter output signal. Connected to the opposite terminal of the light source is a current source driver which receives a control signal control the voltage levels that determine which light source is the active or full power light source in the time multiplexed image generation arrangement. The use of a DC-DC converter having a single inductor reduces cost and size of the system while still enabling color mixing such that two or more light sources share the same single output of the DC-DC converter.
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