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1. 发明申请

US20070085566A1 Level shift circuit 有权
标题翻译：电平移位电路
公开(公告)号：US20070085566A1
公开(公告)日：2007-04-19
申请号：US11495774
申请日：2006-07-31
申请人： Masaaki Koto , Kazuhito Kimura , Takuya Ishii , Kazuyuki Moritake
发明人： Masaaki Koto , Kazuhito Kimura , Takuya Ishii , Kazuyuki Moritake
IPC分类号： H03K19/0175
CPC分类号： H03K3/356104
摘要： A level shift circuit has a driving circuit and an output circuit. The driving circuit has a clamp circuit for receiving first and second bias potentials, outputting first and second drive signals which are not less than a reference potential, less than the first bias potential, and complementary to each other, and also outputting third and fourth drive signals which are higher than the second bias potential, not more than a power source potential, and complementary to each other. The output circuit has a first output transistor of a first conductivity type and a second output transistor of a second conductivity type which are connected in series to each other. The first output transistor has a gate for receiving the first drive signal and one electrode for receiving the reference potential. The second output transistor has a gate for receiving the third drive signal and one electrode for receiving the power source potential.
摘要翻译：电平移位电路具有驱动电路和输出电路。驱动电路具有用于接收第一和第二偏置电位的钳位电路，输出小于第一偏置电位并且彼此互补的不小于参考电位的第一和第二驱动信号，并且还输出第三和第四驱动高于第二偏置电位的信号，不大于电源电位，彼此互补。输出电路具有彼此串联连接的第一导电类型的第一输出晶体管和第二导电类型的第二输出晶体管。第一输出晶体管具有用于接收第一驱动信号的栅极和用于接收参考电位的一个电极。第二输出晶体管具有用于接收第三驱动信号的栅极和用于接收电源电位的一个电极。

2. 发明授权

US07737735B2 Output circuit for outputting a signal with a high-voltage amplitude 有权
标题翻译：用于输出具有高电压幅度的信号的输出电路
公开(公告)号：US07737735B2
公开(公告)日：2010-06-15
申请号：US12059789
申请日：2008-03-31
申请人： Masaaki Koto , Kazuhito Kimura , Kazuyuki Moritake , Takuya Ishii
发明人： Masaaki Koto , Kazuhito Kimura , Kazuyuki Moritake , Takuya Ishii
IPC分类号： H03K3/00
CPC分类号： H03K19/018521
摘要： An output circuit includes an output block and a predrive block for driving the output block based on an input signal. The predrive block has a clamp unit connected between the gate terminal of a first output transistor and the gate terminal of a second output transistor to limit the potential of the gate terminal of the first output transistor to a value of not more than a first potential and limit the potential of the gate terminal of the second output transistor to a value of not less than a second potential.
摘要翻译：输出电路包括输出块和用于基于输入信号驱动输出块的预驱动块。预驱动块具有连接在第一输出晶体管的栅极端子和第二输出晶体管的栅极端子之间的钳位单元，以将第一输出晶体管的栅极端子的电位限制在不大于第一电位的值;以及将第二输出晶体管的栅极端子的电位限制在不小于第二电位的值。

3. 发明申请

US20080252354A1 OUTPUT CIRCUIT 有权
标题翻译：输出电路
公开(公告)号：US20080252354A1
公开(公告)日：2008-10-16
申请号：US12059789
申请日：2008-03-31
申请人： Masaaki Koto , Kazuhito Kimura , Kazuyuki Moritake , Takuya Ishii
发明人： Masaaki Koto , Kazuhito Kimura , Kazuyuki Moritake , Takuya Ishii
IPC分类号： H03K5/08 , H03L5/00
CPC分类号： H03K19/018521
摘要： An output circuit includes an output block and a predrive block for driving the output block based on an input signal. The predrive block has a clamp unit connected between the gate terminal of a first output transistor and the gate terminal of a second output transistor to limit the potential of the gate terminal of the first output transistor to a value of not more than a first potential and limit the potential of the gate terminal of the second output transistor to a value of not less than a second potential.
摘要翻译：输出电路包括输出块和用于基于输入信号驱动输出块的预驱动块。预驱动块具有连接在第一输出晶体管的栅极端子和第二输出晶体管的栅极端子之间的钳位单元，以将第一输出晶体管的栅极端子的电位限制在不大于第一电位的值;以及将第二输出晶体管的栅极端子的电位限制在不小于第二电位的值。

4. 发明授权

US07348800B2 Level shift circuit 有权
标题翻译：电平移位电路
公开(公告)号：US07348800B2
公开(公告)日：2008-03-25
申请号：US11495774
申请日：2006-07-31
申请人： Masaaki Koto , Kazuhito Kimura , Takuya Ishii , Kazuyuki Moritake
发明人： Masaaki Koto , Kazuhito Kimura , Takuya Ishii , Kazuyuki Moritake
IPC分类号： H03K19/0175
CPC分类号： H03K3/356104
摘要： A level shift circuit has a driving circuit and an output circuit. The driving circuit has a clamp circuit for receiving first and second bias potentials, outputting first and second drive signals which are not less than a reference potential, less than the first bias potential, and complementary to each other, and also outputting third and fourth drive signals which are higher than the second bias potential, not more than a power source potential, and complementary to each other. The output circuit has a first output transistor of a first conductivity type and a second output transistor of a second conductivity type which are connected in series to each other. The first output transistor has a gate for receiving the first drive signal and one electrode for receiving the reference potential. The second output transistor has a gate for receiving the third drive signal and one electrode for receiving the power source potential.
摘要翻译：电平移位电路具有驱动电路和输出电路。驱动电路具有用于接收第一和第二偏置电位的钳位电路，输出小于第一偏置电位并且彼此互补的不小于参考电位的第一和第二驱动信号，并且还输出第三和第四驱动高于第二偏置电位的信号，不大于电源电位，彼此互补。输出电路具有彼此串联连接的第一导电类型的第一输出晶体管和第二导电类型的第二输出晶体管。第一输出晶体管具有用于接收第一驱动信号的栅极和用于接收参考电位的一个电极。第二输出晶体管具有用于接收第三驱动信号的栅极和用于接收电源电位的一个电极。

5. 发明授权

US07825646B2 Step-up converter 有权
标题翻译：升压转换器
公开(公告)号：US07825646B2
公开(公告)日：2010-11-02
申请号：US11905399
申请日：2007-09-28
申请人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
发明人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
IPC分类号： G05F1/40
CPC分类号： H02M3/156
摘要： The present invention provides a current-mode control step-up converter capable of reducing the minimum duty ratio to a sufficiently small value and facilitating the setting of the maximum duty ratio. The step-up converter comprises a current detector 9 for generating a current detection signal Vc corresponding to the current of a rectifier 4; an error amplifier 8 for generating an error signal Ve corresponding to an output DC voltage Vo; and a control circuit 10 for turning ON/OFF the main switch 3 on the basis of the current detection signal Vc and the error signal Ve. The control circuit 10 comprises a comparator 11 and a timer circuit 12. With this configuration, the ON time of the main switch 3 is set at a predetermined value, and the valley value of an inductor current changing in a triangular waveform is controlled. Hence, the OFF time of the main switch is adjusted to stabilize the output. Since the ON time of the main switch 3 can be set as desired, the minimum duty ratio can be reduced to zero or a sufficiently small value.
摘要翻译：本发明提供了一种电流模式控制升压转换器，其能够将最小占空比降低到足够小的值，并且有助于设定最大占空比。升压转换器包括用于产生与整流器4的电流相对应的电流检测信号Vc的电流检测器9; 用于产生对应于输出DC电压Vo的误差信号Ve的误差放大器8; 以及用于根据电流检测信号Vc和误差信号Ve导通/断开主开关3的控制电路10。控制电路10包括比较器11和定时器电路12.通过这种配置，主开关3的接通时间被设定为预定值，并且控制以三角波形变化的电感器电流的谷值。因此，主开关的断开时间被调节以稳定输出。由于可以根据需要设定主开关3的导通时间，所以可以将最小占空比降低到零或足够小的值。

6. 发明申请

US20080211475A1 Step-up converter 有权
标题翻译：升压转换器
公开(公告)号：US20080211475A1
公开(公告)日：2008-09-04
申请号：US11905399
申请日：2007-09-28
申请人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
发明人： Takuya Ishii , Mikio Motomori , Junichi Morita , Takashi Ryu , Masaaki Koto , Makoto Ishimaru , Kazuhito Kimura , Satoshi Wada
IPC分类号： G05F1/565
CPC分类号： H02M3/156
摘要： The present invention provides a current-mode control step-up converter capable of reducing the minimum duty ratio to a sufficiently small value and facilitating the setting of the maximum duty ratio. The step-up converter comprises a current detector 9 for generating a current detection signal Vc corresponding to the current of a rectifier 4; an error amplifier 8 for generating an error signal Ve corresponding to an output DC voltage Vo; and a control circuit 10 for turning ON/OFF the main switch 3 on the basis of the current detection signal Vc and the error signal Ve. The control circuit 10 comprises a comparator 11 and a timer circuit 12. With this configuration, the ON time of the main switch 3 is set at a predetermined value, and the valley value of an inductor current changing in a triangular waveform is controlled. Hence, the OFF time of the main switch is adjusted to stabilize the output. Since the ON time of the main switch 3 can be set as desired, the minimum duty ratio can be reduced to zero or a sufficiently small value.
摘要翻译：本发明提供了一种电流模式控制升压转换器，其能够将最小占空比降低到足够小的值，并且有助于设定最大占空比。升压转换器包括用于产生与整流器4的电流相对应的电流检测信号Vc的电流检测器9; 用于产生对应于输出DC电压Vo的误差信号Ve的误差放大器8; 以及用于根据电流检测信号Vc和误差信号Ve导通/断开主开关3的控制电路10。控制电路10包括比较器11和定时器电路12。利用这种配置，主开关3的接通时间被设定为预定值，并且控制以三角波形变化的电感器电流的谷值。因此，主开关的断开时间被调节以稳定输出。由于可以根据需要设定主开关3的导通时间，所以可以将最小占空比降低到零或足够小的值。

7. 发明授权

US07285944B2 DC-DC converter 有权
标题翻译： DC-DC转换器
公开(公告)号：US07285944B2
公开(公告)日：2007-10-23
申请号：US11523699
申请日：2006-09-20
申请人： Takuya Ishii , Takashi Ryu , Hirohisa Tanabe , Masaaki Koto
发明人： Takuya Ishii , Takashi Ryu , Hirohisa Tanabe , Masaaki Koto
IPC分类号： G05F1/40
CPC分类号： H02M3/156
摘要： A DC-DC converter for converting an input DC voltage to an output DC voltage has a switch element which is turned ON/OFF by a drive signal, a reference voltage source for outputting a first reference voltage when the switch element is ON or outputting a second reference voltage when the switch element is OFF, a capacitive element having one terminal connected to the reference voltage source, a charge/discharge circuit for discharging the capacitive element when the switch element is ON and charging the capacitive element when the switch element is OFF, a switch circuit for short-circuiting the capacitive element when the switch element is turned ON and OFF, and a comparison circuit for comparing the output DC voltage or a voltage at which the output DC voltage is detected with a voltage at the other terminal of the capacitive element and generating the drive signal.
摘要翻译：用于将输入DC电压转换为输出DC电压的DC-DC转换器具有通过驱动信号导通/截止的开关元件，用于当开关元件为ON时输出第一基准电压的基准电压源，或者输出当开关元件断开时的第二参考电压，具有连接到参考电压源的一个端子的电容元件，当开关元件接通时对电容元件进行放电的充电/放电电路，并且当开关元件断开时对电容元件充电开关电路，用于在开关元件接通和断开时短路电容元件;以及比较电路，用于将输出直流电压或检测到输出直流电压的电压与另一端的电压电容元件并产生驱动信号。

8. 发明申请

US20070063685A1 DC-DC converter 有权
公开(公告)号：US20070063685A1
公开(公告)日：2007-03-22
申请号：US11523699
申请日：2006-09-20
申请人： Takuya Ishii , Takashi Ryu , Hirohisa Tanabe , Masaaki Koto
发明人： Takuya Ishii , Takashi Ryu , Hirohisa Tanabe , Masaaki Koto
IPC分类号： G05F1/00
CPC分类号： H02M3/156
摘要： A DC-DC converter for converting an input DC voltage to an output DC voltage has a switch element which is turned ON/OFF by a drive signal, a reference voltage source for outputting a first reference voltage when the switch element is ON or outputting a second reference voltage when the switch element is OFF, a capacitive element having one terminal connected to the reference voltage source, a charge/discharge circuit for discharging the capacitive element when the switch element is ON and charging the capacitive element when the switch element is OFF, a switch circuit for short-circuiting the capacitive element when the switch element is turned ON and OFF, and a comparison circuit for comparing the output DC voltage or a voltage at which the output DC voltage is detected with a voltage at the other terminal of the capacitive element and generating the drive signal.

9. 发明授权

US07940031B2 Switching power supply circuitry 有权
标题翻译：开关电源电路
公开(公告)号：US07940031B2
公开(公告)日：2011-05-10
申请号：US12662828
申请日：2010-05-05
申请人： Kazuhito Kimura , Takuya Ishii
发明人： Kazuhito Kimura , Takuya Ishii
IPC分类号： G05F1/00
CPC分类号： H02M1/36 , H02M3/073 , H02M3/155 , H02M2001/0006 , H02M2001/008
摘要： An output voltage VC obtained by boosting an input voltage VIN by means of a charge pump control circuit 3 of a charge pump 102 is supplied as a power supply voltage to a control circuit 4 of a step-up converter. It is thus possible to eliminate the need for a conventional self-bias method, eliminate switching from startup oscillation to main oscillation of the conventional self-bias method upon startup, and overcome problems caused by the switching of oscillation states, thereby achieving switching power supply circuitry starting in a reliable and stable manner.
摘要翻译：通过利用电荷泵102的电荷泵控制电路3对输入电压VIN进行升压而获得的输出电压VC作为电源电压被提供给升压转换器的控制电路4。因此，可以消除对常规自偏置方法的需要，在起动时消除常规自偏置方法的启动振荡到主振荡的切换，并克服由振荡状态的切换引起的问题，从而实现开关电源电路以可靠稳定的方式启动。

10. 发明申请

US20060044724A1 Multi-output power supply and electronic device using them 有权
标题翻译：多输出电源和使用它们的电子设备
公开(公告)号：US20060044724A1
公开(公告)日：2006-03-02
申请号：US11153230
申请日：2005-06-15
申请人： Takuya Ishii , Takashi Ryu , Mikio Motomori , Hirohisa Tanabe , Masato Yoshida , Kazuhito Kimura , Tomoya Shigemi
发明人： Takuya Ishii , Takashi Ryu , Mikio Motomori , Hirohisa Tanabe , Masato Yoshida , Kazuhito Kimura , Tomoya Shigemi
IPC分类号： H02H3/20
CPC分类号： H02M3/158 , H02M2001/008
摘要： For controlling DC-DC converters conforming to voltage mode control system and current mode control system, in multi-output power supply, first converter section 2 is configured that first detection circuit 31 outputs first control signal, that first oscillation circuit 32 outputs first triangular wave signal and clock signal, and that first pulse-width modulation circuit 33 drives first switch by comparing first control signal with first triangular wave signal. Second converter section 4 is configured that second detection circuit 34 outputs second control signal, that second oscillation circuit 35 outputs second triangular wave signal synchronized with clock signal, that current detection circuit 36 outputs current signal of second inductor, and that second pulse-width modulation circuit 37 turns ON second switch in synchronization with clock signal and turns OFF second switch by calculating or comparing second control signal, the second triangular wave signal and current signal.
摘要翻译：为了控制符合电压模式控制系统和电流模式控制系统的DC-DC转换器，在多输出电源中，第一转换器部分2被配置为：第一检测电路31输出第一控制信号，第一振荡电路32输出第一三角波信号和时钟信号，并且第一脉冲宽度调制电路33通过将第一控制信号与第一三角波信号进行比较来驱动第一开关。第二转换器部分4被配置为第二检测电路34输出第二控制信号，第二振荡电路35输出与时钟信号同步的第二三角波信号，电流检测电路36输出第二电感器的电流信号，第二脉冲宽度调制电路37与时钟信号同步地接通第二开关，并通过计算或比较第二控制信号，第二三角波信号和电流信号来关断第二开关。

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