Electric power conversion systems – Current conversion – With starting arrangement
Reexamination Certificate
2005-06-28
2005-06-28
Laxton, Gary L. (Department: 2838)
Electric power conversion systems
Current conversion
With starting arrangement
C363S021080, C363S021160, C363S097000
Reexamination Certificate
active
06912141
ABSTRACT:
A switching power supply apparatus (200) for controlling the operation of a switching FET (225) adapted for switching a rectified smoothed output of a primary side rectifying smoothing circuit (215) by a switching controlling circuit (230) having a hysteresis low-voltage mistaken operation prohibiting circuit. An output of a ternary winding (220C) of a converter transformer is rectified and smoothed by a rectifying smoothing circuit (238) to drive the switching controlling circuit (230). An output voltage of the ternary winding (220C), varied in dependence upon the load state on the secondary side of a converter transformer (220) is set so as to be lower than a low voltage protective voltage in case the voltage is lower than a design load and so as to be higher than the low voltage protective voltage in case the voltage is higher than the design load, in order to carry out an intermittent operation during standby time. Thus, the switching operation during standby time may be carried out intermittently to minimize the power consumption to realize the energy saving during standby time, simply by adjusting the values of respective key devices, without appreciably changing the pre-existing circuitry.
REFERENCES:
patent: 5661642 (1997-08-01), Shimashita
patent: 04-105558 (1992-04-01), None
patent: 07-327369 (1995-12-01), None
patent: 10-337019 (1998-12-01), None
Laxton Gary L.
Sonnenschein Nath & Rosenthal LLP
LandOfFree
Switching power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Switching power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching power supply will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3488260