The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2002
Filed:
Jun. 28, 2001
Sansha Electric Manufacturing Company, Limited, Osaka, JP;
Abstract
A voltage from an AC power source is converted into a DC voltage in an input-side rectifier-smoother circuit. The DC voltage is then converted into a high-frequency voltage in an inverter, and the resulting high-frequency voltage is voltage-transformed in a transformer. The voltage-transformed high-frequency voltage is converted into a DC voltage in an output-side rectifier-smoother circuit, which is applied via output terminals to a load. The input-side and output-side rectifier-smoother circuits, the inverter and the transformer are enclosed in a casing having a plastic panel. The output terminal of the apparatus is mounted on the plastic panel. When a temperature sensing unit with a temperature sensor disposed on the panel near the output terminal senses that the temperature of the panel has risen above a predetermined temperature, which is lower than the heat deformation temperature of the panel, a gate signal ON-OFF circuit prevents a gate signal from a gate signal generating circuit from being coupled to the inverter. The gate signal ON-OFF circuit permits the gate signal to be coupled to the inverter when the temperature sensing unit senses that the temperature of the panel has decreased below the predetermined temperature.