Electricity: power supply or regulation systems – For reactive power control – Using converter
Reexamination Certificate
2006-07-11
2006-07-11
Vo, Tuyet (Department: 2821)
Electricity: power supply or regulation systems
For reactive power control
Using converter
C315S283000
Reexamination Certificate
active
07075275
ABSTRACT:
A DC-DC converter has switching means which generates a continuous switching voltage having a specified period from an input voltage and outputs the generated switching voltage, output voltage generating means which receives the switching voltage at an inductor and generates an output voltage obtained by rectifying and smoothing a voltage generated in the inductor, lamp signal generating means which generates a lamp signal and outputs the generated lamp signal, and control means which performs an arithmetic operation using a current signal relative to a current flowing in the inductor, an error signal relative to the output voltage, and the lamp signal to generate a control signal for controlling the operation of the switching means and outputs the generated control signal to the switching means. The lamp signal generating means includes first signal generating means for generating a first output signal based on a frequency divided signal having first and second periods obtained by dividing the time of a clock signal having the specified period and second signal generating means for generating a second output signal having a phase 180 degrees different from the phase of the first output signal based on the frequency divided signal, generates the lamp signal which rises after being held at a constant value for a specified time period in each of the first and second periods, and outputs the generated lamp signal.
REFERENCES:
patent: 4674020 (1987-06-01), Hill
patent: 6515463 (2003-02-01), Ling
patent: 6933706 (2005-08-01), Shih
patent: 6949961 (2005-09-01), Robb et al.
patent: 6956361 (2005-10-01), Mozipo et al.
patent: 06-189528 (1994-07-01), None
Akashi Hiroki
Ishii Takuya
Ishimaru Makoto
Motomori Mikio
Ryu Takashi
A Minh Dieu
Matsushita Electric - Industrial Co., Ltd.
McDermott Will & Emery LLP
Vo Tuyet
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