Switching power supply

Details Switching power supply Switching power supply

2005-11-01

2005-11-01

Vu, Bao Q. (Department: 2838)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S699000, C361S702000

Reexamination Certificate

active

06961244

ABSTRACT:
A switching power supply includes a switching circuit, a main transformer, a rectifier circuit, and an output smoothing circuit, which are mounted on a base plate. Voltage transformation of an inputted direct current voltage is performed through collaboration among the above. A pedestal portion is formed on the base plate, and a channel to cool down electronic parts such as a diode is formed inside the pedestal portion. Since the channel is thus formed inside the pedestal portion, the device will not be larger-sized even when the channel is formed. Moreover, at least any of a switching element and a diode is mounted on the pedestal portion, and a choke coil is mounted in a region other than a region where the pedestal portion is formed. Therefore, even with the pedestal portion, it is significantly suppressed for the device to be larger-sized.

REFERENCES:
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patent: 5309319 (1994-05-01), Messina
patent: 6166937 (2000-12-01), Yamamura et al.
patent: 6305463 (2001-10-01), Salmonson
patent: 6388317 (2002-05-01), Reese
patent: 6888722 (2005-05-01), Viswanath
patent: 2001/0014029 (2001-08-01), Suzuki et al.
patent: 11-121690 (1999-04-01), None
patent: A 2000-13062 (2000-01-01), None
patent: 2000-014150 (2000-01-01), None
patent: A 2003-08264 (2003-01-01), None

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