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公开(公告)号:US20190252905A1
公开(公告)日:2019-08-15
申请号:US16213026
申请日:2018-12-07
申请人: Daisuke SUZUKI , Takafumi GOTO , Kensuke KURODA
发明人: Daisuke SUZUKI , Takafumi GOTO , Kensuke KURODA
摘要: A charge control device for controlling charging of a secondary battery by using a current limit function of an external power supply includes: a charge control element arranged to be connected in series between the external power supply and the secondary battery; a constant current control unit configured to control an output current of the charge control element to be constant; a constant voltage control unit configured to control an output voltage of the charge control element to be constant; and an ON state setting unit configured to set the charge control element to an ON state, wherein the charge control element includes a control terminal to which a control signal for controlling the output current and the output voltage is input, and is composed of a single output element.
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公开(公告)号:US20110115528A1
公开(公告)日:2011-05-19
申请号:US12943149
申请日:2010-11-10
申请人: Takafumi GOTO , Tomomitsu OHARA
发明人: Takafumi GOTO , Tomomitsu OHARA
CPC分类号: G05F3/20
摘要: Disclosed is a reference voltage generating circuit including a constant current circuit which comprises: a first resistive element and a bipolar transistor connected in series between a supply voltage terminal and a constant potential point; a first MOS transistor having a gate connected to a node connecting the first resistive element with the bipolar transistor; a second resistive element connected in series between a source of the first MOS transistor and the constant potential point; a second MOS transistor connected between a drain of the first MOS transistor and the supply voltage terminal; and a third MOS transistor forming a current mirror in conjunction with the second MOS transistor, wherein a constant current generated by the constant current circuit or a current proportional to the generated constant current is converted to a voltage as a reference voltage.
摘要翻译: 公开了一种包括恒流电路的参考电压产生电路,其包括:串联连接在电源电压端子和恒定电位点之间的第一电阻元件和双极晶体管; 第一MOS晶体管,具有连接到将所述第一电阻元件与所述双极晶体管连接的节点的栅极; 串联连接在第一MOS晶体管的源极和恒定电位点之间的第二电阻元件; 连接在第一MOS晶体管的漏极和电源电压端子之间的第二MOS晶体管; 以及与第二MOS晶体管结合形成电流镜的第三MOS晶体管,其中由恒流电路产生的恒定电流或与产生的恒定电流成比例的电流被转换为作为参考电压的电压。
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