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1. 发明授权

US08653800B2 Step-up switching power supply device with current-limiting transistor 有权
标题翻译：具有限流晶体管的升压型开关电源装置
公开(公告)号：US08653800B2
公开(公告)日：2014-02-18
申请号：US12792198
申请日：2010-06-02
申请人： Takatsugu Wachi , Masashi Nagasato , Yuki Iwata
发明人： Takatsugu Wachi , Masashi Nagasato , Yuki Iwata
IPC分类号： G05F1/618 , H02M3/156
CPC分类号： H02M3/1588 , H02M1/36 , H02M2001/322 , Y02B70/1466 , Y10T307/406
摘要： The step-up DC/DC converter (30) of the present invention has a synchronous rectifier transistor (M1); an output transistor (M2); a first back-gate control transistor (M3) connected between an external terminal (T2) and a back gate of the synchronous rectifier transistor (M1); a discharge transistor (M6) connected between the external terminal (T2) and a ground terminal; and a control unit (X1) for controlling the on/off state of the components described above. The control unit (X1) switches off the first back-gate control transistor (M3) and switches on the discharge transistor (M6) when stopping the switching operation of the output transistor (M2) and the synchronous rectifier transistor (M1).
摘要翻译：本发明的升压型DC / DC转换器（30）具有同步整流晶体管（M1）; 输出晶体管（M2）; 连接在同步整流晶体管（M1）的外部端子（T2）和背栅极之间的第一后栅极控制晶体管（M3）; 连接在外部端子（T2）和接地端子之间的放电晶体管（M6）; 以及用于控制上述部件的开/关状态的控制单元（X1）。当停止输出晶体管（M2）和同步整流晶体管（M1）的开关动作时，控制单元（X1）关闭第一后栅极控制晶体管（M3）并接通放电晶体管（M6）。

2. 发明申请

US20050104151A1 Semiconductor device, temperature sensor, and electronic apparatus comprising it 失效
标题翻译：半导体器件，温度传感器和包括它的电子设备
公开(公告)号：US20050104151A1
公开(公告)日：2005-05-19
申请号：US10504856
申请日：2003-03-10
申请人： Takatsugu Wachi , Akira Nakamura
发明人： Takatsugu Wachi , Akira Nakamura
IPC分类号： G01K7/01 , H03F3/45 , H01L31/058
CPC分类号： H03F3/45085 , G01K7/01
摘要： A temperature sensor comprising two transistors having different emitter current densities and performing temperature detection based on the fact that the difference in voltage between base and emitter changes with temperature. The temperature sensor is provided with a feedback circuit for controlling respective collector voltages and emitter currents such that the collector voltages of both transistors vary according to similar temperature characteristics.
摘要翻译：一种温度传感器，包括具有不同发射极电流密度的两个晶体管，并且基于基极和发射极之间的电压差随温度而变化的事实进行温度检测。温度传感器设置有用于控制各集电极电压和发射极电流的反馈电路，使得两个晶体管的集电极电压根据相似的温度特性而变化。

3. 发明申请

US20100176776A1 POWER SUPPLY DEVICE 有权
标题翻译：电源设备
公开(公告)号：US20100176776A1
公开(公告)日：2010-07-15
申请号：US12601928
申请日：2008-10-16
申请人： Takatsugu Wachi
发明人： Takatsugu Wachi
IPC分类号： G05F1/10
CPC分类号： H02M1/08 , H02M3/1588 , Y02B70/1466
摘要： A power supply device is provided with an output transistor for outputting a switch voltage having a rectangular waveform, based on an input signal by being switching-controlled by a pulse width modulation signal; a reference voltage generating circuit for generating a prescribed reference voltage; an error amplifier wherein a feedback voltage depending on the switch voltage and the reference voltage are inputted, an error voltage is generated by amplifying a difference between the voltages, and changes a gain of itself, in accordance with a current signal generated inside based on the feedback voltage and the reference voltage; an oscillator for generating an oscillation signal; and a comparator wherein the oscillation signal and the error voltages are inputted and the pulse width modulation signal is outputted by comparing the voltages.
摘要翻译：电源装置设置有输出晶体管，用于通过由脉冲宽度调制信号进行开关控制，基于输入信号输出具有矩形波形的开关电压; 用于产生规定参考电压的参考电压产生电路; 误差放大器，其中输入取决于开关电压和参考电压的反馈电压，通过放大电压之间的差来产生误差电压，并根据内部产生的电流信号，根据反馈电压和参考电压; 用于产生振荡信号的振荡器; 以及比较器，其中输入振荡信号和误差电压，并通过比较电压输出脉宽调制信号。

4. 发明授权

US08330440B2 Power supply device with gain changing error amplifier 有权
标题翻译：具有增益变化误差放大器的电源装置
公开(公告)号：US08330440B2
公开(公告)日：2012-12-11
申请号：US12601928
申请日：2008-10-16
申请人： Takatsugu Wachi
发明人： Takatsugu Wachi
IPC分类号： G05F1/575
CPC分类号： H02M1/08 , H02M3/1588 , Y02B70/1466
摘要： A power supply device is provided with an output transistor for outputting a switch voltage having a rectangular waveform, based on an input signal by being switching-controlled by a pulse width modulation signal; a reference voltage generating circuit for generating a prescribed reference voltage; an error amplifier wherein a feedback voltage depending on the switch voltage and the reference voltage are inputted, an error voltage is generated by amplifying a difference between the voltages, and changes a gain of itself, in accordance with a current signal generated inside based on the feedback voltage and the reference voltage; an oscillator for generating an oscillation signal; and a comparator wherein the oscillation signal and the error voltages are inputted and the pulse width modulation signal is outputted by comparing the voltages.
摘要翻译：电源装置设置有输出晶体管，用于通过由脉冲宽度调制信号进行开关控制，基于输入信号输出具有矩形波形的开关电压; 用于产生规定参考电压的参考电压产生电路; 误差放大器，其中输入取决于开关电压和参考电压的反馈电压，通过放大电压之间的差来产生误差电压，并根据内部产生的电流信号，根据反馈电压和参考电压; 用于产生振荡信号的振荡器; 以及比较器，其中输入振荡信号和误差电压，并通过比较电压输出脉宽调制信号。

5. 发明申请

US20100308655A1 STEP-UP SWITCHING POWER SUPPLY DEVICE 有权
标题翻译：升压开关电源装置
公开(公告)号：US20100308655A1
公开(公告)日：2010-12-09
申请号：US12792198
申请日：2010-06-02
申请人： Takatsugu Wachi , Masashi Nagasato , Yuki Iwata
发明人： Takatsugu Wachi , Masashi Nagasato , Yuki Iwata
IPC分类号： G05F1/46
CPC分类号： H02M3/1588 , H02M1/36 , H02M2001/322 , Y02B70/1466 , Y10T307/406
摘要： The step-up DC/DC converter (30) of the present invention has a synchronous rectifier transistor (M1); an output transistor (M2); a first back-gate control transistor (M3) connected between an external terminal (T2) and a back gate of the synchronous rectifier transistor (M1); a discharge transistor (M6) connected between the external terminal (T2) and a ground terminal; and a control unit (X1) for controlling the on/off state of the components described above. The control unit (X1) switches off the first back-gate control transistor (M3) and switches on the discharge transistor (M6) when stopping the switching operation of the output transistor (M2) and the synchronous rectifier transistor (M1).
摘要翻译：本发明的升压型DC / DC转换器（30）具有同步整流晶体管（M1）; 输出晶体管（M2）; 连接在同步整流晶体管（M1）的外部端子（T2）和背栅极之间的第一后栅极控制晶体管（M3）; 连接在外部端子（T2）和接地端子之间的放电晶体管（M6）; 以及用于控制上述部件的开/关状态的控制单元（X1）。当停止输出晶体管（M2）和同步整流晶体管（M1）的开关动作时，控制单元（X1）关闭第一后栅极控制晶体管（M3）并接通放电晶体管（M6）。

6. 发明授权

US07176701B2 Semiconductor device, temperature sensor, and electronic apparatus comprising it 失效
标题翻译：半导体器件，温度传感器和包括它的电子设备
公开(公告)号：US07176701B2
公开(公告)日：2007-02-13
申请号：US10504856
申请日：2003-03-10
申请人： Takatsugu Wachi , Akira Nakamura
发明人： Takatsugu Wachi , Akira Nakamura
IPC分类号： G01R27/08 , G01R31/28 , G01R31/02 , H01L35/00
CPC分类号： H03F3/45085 , G01K7/01
摘要： A temperature sensor including two transistors having different emitter current densities and performing temperature detection based on the fact that the difference in voltage between base and emitter changes with temperature. The temperature sensor is provided with a feedback circuit for controlling respective collector voltages and emitter currents such that the collector voltages of both transistors vary according to similar temperature characteristics.
摘要翻译：包括具有不同发射极电流密度的两个晶体管的温度传感器，并且基于基极和发射极之间的电压差随着温度而变化的事实进行温度检测。温度传感器设置有用于控制各集电极电压和发射极电流的反馈电路，使得两个晶体管的集电极电压根据相似的温度特性而变化。

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