Matrix display driver with energy recovery

Details Matrix display driver with energy recovery Matrix display driver with energy recovery

2005-05-24

2005-05-24

Nguyen, Jimmy H. (Department: 2673)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S060000, C345S067000, C345S068000

Reexamination Certificate

active

06897834

ABSTRACT:
In the matrix display drive circuit with an energy recovery inductor (L1), a switch circuit (S3, D3, S6, d9) is connected in parallel with the inductor (L1) to keep the inductor current (TL1) in a loop which is as small as possible, and to keep the voltage (VL1) across the inductor (L1) as low as possible. Consequently, the energy stored in the inductor is lower, and the EM1caused by the parasitic resonance of the inductor (L1) with parasitic capacitances Cj will be significantly lower.

REFERENCES:
patent: 4866349 (1989-09-01), Weber et al.
patent: 5670974 (1997-09-01), Ohba et al.
patent: 6111556 (2000-08-01), Moon
patent: 6483490 (2002-11-01), Lo

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