Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1996-04-16
1998-01-27
Sterrett, Jeffrey L.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 59, H02M 307
Patent
active
057127786
ABSTRACT:
A DC-DC converter for a TFT-LCD includes first and second switches which are turned on/off in opposition according to a polar signal and third and fourth switches which are turned on/off in opposition according to an inverse polar signal. First and second diodes form electric paths in accordance with the first and the second switches, and third and fourth diodes form electric paths in accordance with the third and fourth switches. A first capacitor is charged when the electric paths of the first and second diodes are provided and a second capacitor is charged when the electric paths of the third and fourth diodes are provided. A third capacitor is charged by the electric charges of the first and the second capacitors. Using this circuit, a DC-DC power converter can be constructed which uses very little power and therefore can be employed in a TFT-LCD of portable information processing equipment.
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Samsung Electronics Co,. Ltd.
Sterrett Jeffrey L.
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