DCDC converter and semiconductor device using DC

专利名称：DC/DC converter and semiconductor device

using DC/DC converter

发明人：Masafumi Ito申请号：US12000320申请日：20071211

公开号：US20080143425A1公开日：20080619

专利附图：

摘要：It is an object to provide a DC/DC converter that can stabilize power supplypotential in use. It is another object to provide a semiconductor device in which circuitoperation is stabilized. In addition to a power supply that supplies potential to be

reference potential of boosting in a DC/DC converter, a power supply for charging acapacitor in the DC/DC converter is provided. Accordingly, loads to the power supply thatsupplies the reference potential of boosting can be reduced. Further, as power forcharging the capacitor in the DC/DC converter, power supplied from not an antenna but asecondary battery is used. More specifically, a secondary battery is used as a powersupply that supplies power to a buffer circuit or an inverter circuit. Thus, power suppliedfrom the antenna can be stabilized. In other words, operation of a logic circuit and ananalog circuit can be stabilized.

申请人：Masafumi Ito

地址：Okazaki-shi JP

国籍：JP

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