| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Research Abstract |
This study proposes a dc/dc converter, which is driven by a controller called delta-sigma modulator. The dc voltage is converted to an ac voltage with switching devices. The ac current is maintained in sinusoidal waveform. The switching devices are turned on/off when the ac current becomes zero. As a result, the switching noise and loss are reduced. The proposed circuit has been tested with a simulation model and in circuit experiments.
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