Voltage for LCD

Details Voltage for LCD Voltage for LCD

2007-07-11

2009-12-29

Riley, Shawn (Department: 2838)

Electrical transmission or interconnection systems

Miscellaneous systems

For particular load device

C345S211000, C345S212000

Reexamination Certificate

active

07638905

ABSTRACT:
A circuit that can avoid drops in power supply and heat generation and save on manufacturing costs with no need of external controls are configured such that: a switching transformer has a terminal that produces an output of 22V at power-on and an output of 8V during standby and a terminal that produces an output of 10V at power-on and an output of 3V during standby; the output of 22V or 8V is lowered to 5V by a regulator IC1and applied (input) to a regulator IC2; an input of 10V or 3V is produced at the regulator IC2; at power-on, the regulator IC2lowers 10V to 3.3V and supplies the lowered 3.3V to the inverter circuit10f; and during standby, a regulator IC lowers 8V to 3.3V and supplies the lowered 3.3V to the inverter circuit10f.

REFERENCES:
patent: 6967649 (2005-11-01), Sun
patent: 01-115380 (1989-08-01), None
patent: 10-150723 (1998-06-01), None
patent: 2001-178021 (2001-06-01), None
patent: 3110950 (2005-05-01), None
patent: 3120526 (2006-03-01), None
patent: 3120526 (2006-03-01), None
Japanese Notice of the reason for refusal, dated Jun. 25, 2008.

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