Electric power conversion systems – Current conversion – With starting arrangement
Patent
1994-08-18
1996-12-03
Sterrett, Jeffrey L.
Electric power conversion systems
Current conversion
With starting arrangement
363 21, 363 97, 363131, H02M 7517
Patent
active
055814530
ABSTRACT:
A switching type power supply apparatus decreases the amount of power used in computer and computer peripheral devices by utilizing a switching transistor which is set into switching operation responsive to a pulse signal received from a power source control circuit. This switching transistor controls the voltage applied to the primary winding of the power transformer by the switching transistor, and issues an output voltage from the secondary winding. The power supply apparatus includes a switch circuit which is connected in series to the starting resistor for supplying the output voltage rectified from the AC power source when starting up to the power supply control circuit. The power supply apparatus includes a switch control circuit which turns off the switch circuit when the output voltage rectified from the AC output of the tertiary winding of the power transformer reaches a voltage high enough for stable operation of the power supply control circuit. As a result, the power loss at the starting resistor is curtailed after startup of the switching type power supply apparatus such that the power consumption of the power-saving operation is also curtailed.
REFERENCES:
patent: 4030024 (1977-06-01), Chambers et al.
patent: 4272805 (1981-06-01), Iguchi et al.
patent: 4370701 (1983-01-01), Western
patent: 4486822 (1984-12-01), Marinus
patent: 4692853 (1987-09-01), de Sartre et al.
patent: 4695936 (1987-09-01), Whittle
patent: 5089947 (1992-02-01), Driscoll et al.
patent: 5200886 (1993-04-01), Schwarz et al.
patent: 5459652 (1995-10-01), Faulk
Koyama Takeo
Ueta Mitsunori
Matsushita Electric - Industrial Co., Ltd.
Sterrett Jeffrey L.
LandOfFree
Power supply with switched starting circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power supply with switched starting circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply with switched starting circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-790597