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公开(公告)号：US07106031B2
公开(公告)日：2006-09-12
申请号：US11053919
申请日：2005-02-10
申请人： Junji Hayakawa , Hiroyuki Ban , Jyunichi Nagata
发明人： Junji Hayakawa , Hiroyuki Ban , Jyunichi Nagata
CPC分类号： H02M3/158 , H02M2001/0045 , H02M2001/0048 , H02M2001/007 , Y02B70/1491
摘要： In a power supply apparatus, a switching circuit selectively applies one of an input voltage of a power converting circuit and an output voltage of the power converting circuit to a voltage reducing power supply circuit. When the input voltage is applied to the power converting circuit, the switching circuit selects this input voltage, so that the output voltage of the voltage reducing power supply circuit can quickly rise. Thereafter, when the output voltage of the power converting circuit exceeds this output voltage, the switching circuit selects the output voltage of the power converting circuit. As a result, a difference between the input voltage and the output voltage of the voltage reducing power supply circuit is decreased. Thus, a power loss is lowered and noise produced in the power converting circuit is suppressed.
摘要翻译： 在电源装置中，开关电路将功率转换电路的输入电压和电力转换电路的输出电压中的一个选择性地施加到降压电源电路。 当输入电压施加到功率转换电路时，开关电路选择该输入电压，使得降压电源电路的输出电压可以快速上升。 此后，当电力转换电路的输出电压超过该输出电压时，开关电路选择电力转换电路的输出电压。 结果，降压电源电路的输入电压和输出电压之间的差减小。 因此，功率损耗降低，功率转换电路产生的噪声被抑制。
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公开(公告)号：US20050206323A1
公开(公告)日：2005-09-22
申请号：US11053919
申请日：2005-02-10
申请人： Junji Hayakawa , Hiroyuki Ban , Jyunichi Nagata
发明人： Junji Hayakawa , Hiroyuki Ban , Jyunichi Nagata
CPC分类号： H02M3/158 , H02M2001/0045 , H02M2001/0048 , H02M2001/007 , Y02B70/1491
摘要： In a power supply apparatus, a switching circuit selectively applies one of an input voltage of a power converting circuit and an output voltage of the power converting circuit to a voltage reducing power supply circuit. When the input voltage is applied to the power converting circuit, the switching circuit selects this input voltage, so that the output voltage of the voltage reducing power supply circuit can quickly rise. Thereafter, when the output voltage of the power converting circuit exceeds this output voltage, the switching circuit selects the output voltage of the power converting circuit. As a result, a difference between the input voltage and the output voltage of the voltage reducing power supply circuit is decreased. Thus, a power loss is lowered and noise produced in the power converting circuit is suppressed.
摘要翻译： 在电源装置中，开关电路将功率转换电路的输入电压和电力转换电路的输出电压中的一个选择性地施加到降压电源电路。 当输入电压施加到功率转换电路时，开关电路选择该输入电压，使得降压电源电路的输出电压可以快速上升。 此后，当电力转换电路的输出电压超过该输出电压时，开关电路选择电力转换电路的输出电压。 结果，降压电源电路的输入电压和输出电压之间的差减小。 因此，功率损耗降低，功率转换电路产生的噪声被抑制。
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