Display monitor power supply apparatus with a power factor corre

Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

363 41, 39575004, G09G5/00

Patent

active

059054913

ABSTRACT:
A power supply apparatus for a display monitor includes a power factor correction circuit coupled to receive a primary voltage, for correcting a power factor of said primary voltage and generating a secondary voltage; a switch operable in response to a pulse signal; a switch control circuit for generating said pulse signal; a transformer including a primary winding and secondary windings connected to each other by mutual induction, in which the primary winding has a first terminal coupled to receive the secondary voltage and a second terminal connected to the switch, and in which the transformer is being supplied with primary induced voltage when the pulse signal has a primary duty ratio and supplied with secondary induced voltage lower than the primary induced voltage when the pulse signal has a secondary duty ratio; a rectifier for rectifying the primary and secondary induced voltages; and a smoothing circuit for smoothing an output voltage of the rectifier for application to the power factor correction circuit.

REFERENCES:
patent: 4669036 (1987-05-01), Cowett, Jr.
patent: 4886979 (1989-12-01), Chang
patent: 5019717 (1991-05-01), McCurry et al.
patent: 5335168 (1994-08-01), Walker
patent: 5375245 (1994-12-01), Solhjell et al.
patent: 5481730 (1996-01-01), Brown et al.
patent: 5481732 (1996-01-01), Shahbazi
patent: 5483464 (1996-01-01), Song
patent: 5734562 (1998-03-01), Redl

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Display monitor power supply apparatus with a power factor corre does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display monitor power supply apparatus with a power factor corre, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display monitor power supply apparatus with a power factor corre will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1763235

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.