Photo-Coupler
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United States of America Patent
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Issued Date -
Aug 1, 2013
app pub date -
Nov 23, 2010
filing date -
Nov 23, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A photo-coupler is provided. The photo-coupler comprises a plurality of photo-coupling modules, a third package, a power lead and a ground lead. Each of the photo-coupling modules includes a light emitting component, a photosensitive component, a first transparent package and a second transparent package. In each of the photo-coupler modules, the photosensitive component is disposed opposite the light emitting component for receiving the light emitted by the light emitting component. In addition, the first transparent package encloses the light emitting component, while the second transparent package encloses the light emitting component and the first transparent package. The third package encloses both of the second transparent packages to block light from the outside. The photosensitive components electrically connect to the common power lead respectively and electrically connect to the common ground lead respectively inside the third package.
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