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1. 发明授权

US07379284B2 Switching control circuit and self-excited DC-DC converter 有权
标题翻译：开关控制电路和自激式DC-DC转换器
公开(公告)号：US07379284B2
公开(公告)日：2008-05-27
申请号：US11426273
申请日：2006-06-23
申请人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
发明人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
IPC分类号： H02H3/00 , G05F1/00
CPC分类号： H02M3/1588 , H02M1/32 , Y02B70/1466
摘要： A self-excited DC-DC converter comprises a switching element that chops a direct-current input voltage; a smoothing circuit that smoothes the chopped voltage to generate a DC output voltage; a switching control signal generation circuit that generates a switching control signal for the on/off control of the switching element by comparing a feedback voltage of the output voltage and a comparison voltage; an output correction circuit that adjusts the comparison voltage according to an error between the feedback voltage and the reference voltage and, when the output current is in the overcurrent state, reduces the level of the comparison voltage; an overcurrent protection signal generation circuit that, when the output current is in an overcurrent state, generates an overcurrent protection signal for turning off the switching element regardless of the switching control signal; and a delay circuit that delays the overcurrent protection signal. Also, a switching control circuit is provided therein.
摘要翻译：自激式DC-DC转换器包括切断直流输入电压的开关元件; 平滑电路，其使所述斩波电压平滑以产生DC输出电压; 切换控制信号生成电路，通过比较输出电压的反馈电压和比较电压，生成用于开关元件的导通/截止控制的开关控制信号; 输出校正电路，根据反馈电压和参考电压之间的误差调整比较电压，并且当输出电流处于过电流状态时，降低比较电压的电平; 过电流保护信号产生电路，当输出电流处于过电流状态时，不管开关控制信号如何，都产生用于关断开关元件的过电流保护信号; 以及延迟过电流保护信号的延迟电路。另外，在其中设置开关控制电路。

2. 发明授权

US07940507B2 Switching control circuit and self-excited DC-DC converter 有权
标题翻译：开关控制电路和自激式DC-DC转换器
公开(公告)号：US07940507B2
公开(公告)日：2011-05-10
申请号：US12749351
申请日：2010-03-29
申请人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
发明人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
IPC分类号： H02H3/00
CPC分类号： H02M3/1588 , H02M1/32 , Y02B70/1466
摘要： The switching control circuit comprises a switching control signal generation circuit that detects a change in ripples of the output voltage and-generates a switching control signal for the on/off control of the switching element to make the output voltage follow the target level; an overcurrent state detection circuit that generates a state signal indicating whether the output current is in an overcurrent state where the output current is equal to or greater than a predetermined current; and a delay circuit that delays the state signal for a same predetermined delay time at both of the times when the output current exceeds the predetermined current and when the output current falls below the predetermined current.
摘要翻译：开关控制电路包括开关控制信号生成电路，其检测输出电压的波动的变化，并生成用于开关元件的开/关控制的开关控制信号，使输出电压达到目标电平; 产生指示输出电流是否处于输出电流等于或大于预定电流的过电流状态的状态信号的过电流状态检测电路; 以及延迟电路，其在输出电流超过预定电流的两个时间和当输出电流低于预定电流时，延迟状态信号相同的预定延迟时间。

3. 发明申请

US20080136394A1 Switching Control Circuit and Self-Excited DC-DC Converter 有权
标题翻译：开关控制电路和自激式DC-DC转换器
公开(公告)号：US20080136394A1
公开(公告)日：2008-06-12
申请号：US12016124
申请日：2008-01-17
申请人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
发明人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
IPC分类号： G05F1/573
CPC分类号： H02M3/1588 , H02M1/32 , Y02B70/1466
摘要： A self-excited DC-DC converter comprises a switching element that chops a direct-current input voltage; a smoothing circuit that smoothes the chopped voltage to generate a DC output voltage; a switching control signal generation circuit that generates a switching control signal for the on/off control of the switching element by comparing a feedback voltage of the output voltage and a comparison voltage; an output correction circuit that adjusts the comparison voltage according to an error between the feedback voltage and the reference voltage and, when the output current is in the overcurrent state, reduces the level of the comparison voltage; an overcurrent protection signal generation circuit that, when the output current is in an overcurrent state, generates an overcurrent protection signal for turning off the switching element regardless of the switching control signal; and a delay circuit that delays the overcurrent protection signal. Also, a switching control circuit is provided therein.
摘要翻译：自激式DC-DC转换器包括切断直流输入电压的开关元件; 平滑电路，其使所述斩波电压平滑以产生DC输出电压; 切换控制信号生成电路，通过比较输出电压的反馈电压和比较电压，生成用于开关元件的导通/截止控制的开关控制信号; 输出校正电路，根据反馈电压和参考电压之间的误差调整比较电压，并且当输出电流处于过电流状态时，降低比较电压的电平; 过电流保护信号产生电路，当输出电流处于过电流状态时，不管开关控制信号如何，都产生用于关断开关元件的过电流保护信号; 以及延迟过电流保护信号的延迟电路。另外，在其中设置开关控制电路。

4. 发明申请

US20060290333A1 Switching Control Circuit and Self-Excited DC-DC Converter 有权
标题翻译：开关控制电路和自激式DC-DC转换器
公开(公告)号：US20060290333A1
公开(公告)日：2006-12-28
申请号：US11426273
申请日：2006-06-23
申请人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
发明人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
IPC分类号： G05F1/573
CPC分类号： H02M3/1588 , H02M1/32 , Y02B70/1466
摘要： A self-excited DC-DC converter comprises a switching element that chops a direct-current input voltage; a smoothing circuit that smoothes the chopped voltage to generate a DC output voltage; a switching control signal generation circuit that generates a switching control signal for the on/off control of the switching element by comparing a feedback voltage of the output voltage and a comparison voltage; an output correction circuit that adjusts the comparison voltage according to an error between the feedback voltage and the reference voltage and, when the output current is in the overcurrent state, reduces the level of the comparison voltage; an overcurrent protection signal generation circuit that, when the output current is in an overcurrent state, generates an overcurrent protection signal for turning off the switching element regardless of the switching control signal; and a delay circuit that delays the overcurrent protection signal. Also, a switching control circuit is provided therein.
摘要翻译：自激式DC-DC转换器包括切断直流输入电压的开关元件; 平滑电路，其使所述斩波电压平滑以产生DC输出电压; 切换控制信号生成电路，通过比较输出电压的反馈电压和比较电压，生成用于开关元件的导通/截止控制的开关控制信号; 输出校正电路，根据反馈电压和参考电压之间的误差调整比较电压，并且当输出电流处于过电流状态时，降低比较电压的电平; 过电流保护信号产生电路，当输出电流处于过电流状态时，不管开关控制信号如何，都产生用于关断开关元件的过电流保护信号; 以及延迟过电流保护信号的延迟电路。另外，在其中设置开关控制电路。

5. 发明申请

US20100181984A1 Switching Control Circuit and Self-Excited DC-DC Converter 有权
标题翻译：开关控制电路和自激式DC-DC转换器
公开(公告)号：US20100181984A1
公开(公告)日：2010-07-22
申请号：US12749351
申请日：2010-03-29
申请人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
发明人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , H02M1/32 , Y02B70/1466
摘要： The switching control circuit comprises a switching control signal generation circuit that detects a change in ripples of the output voltage and-generates a switching control signal for the on/off control of the switching element to make the output voltage follow the target level; an overcurrent state detection circuit that generates a state signal indicating whether the output current is in an overcurrent state where the output current is equal to or greater than a predetermined current; and a delay circuit that delays the state signal for a same predetermined delay time at both of the times when the output current exceeds the predetermined current and when the output current falls below the predetermined current.
摘要翻译：开关控制电路包括开关控制信号生成电路，其检测输出电压的波动的变化，并生成用于开关元件的开/关控制的开关控制信号，使输出电压达到目标电平; 产生指示输出电流是否处于输出电流等于或大于预定电流的过电流状态的状态信号的过电流状态检测电路; 以及延迟电路，其在输出电流超过预定电流的两个时间和当输出电流低于预定电流时，延迟状态信号相同的预定延迟时间。

6. 发明授权

US07755874B2 Switching control circuit and self excited DC-DC converter 有权
标题翻译：开关控制电路和自激式DC-DC转换器
公开(公告)号：US07755874B2
公开(公告)日：2010-07-13
申请号：US12016124
申请日：2008-01-17
申请人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
发明人： Iwao Fukushi , Tomoaki Nishi , Takashi Noma
IPC分类号： H02H3/00
CPC分类号： H02M3/1588 , H02M1/32 , Y02B70/1466
摘要： A self-excited DC-DC converter includes a switching element that chops an input voltage; a smoothing circuit that smoothes the chopped voltage to generate an output voltage; and a switching control circuit. The switching control circuit includes a switching control signal generation circuit that generates a switching control signal for the on/off control of the switching element by comparing a feedback voltage of the output voltage and a comparison voltage; an output correction circuit that adjusts the comparison voltage according to an error between the feedback voltage and the reference voltage and, when the output current is in the overcurrent state, reduces the level of the comparison voltage; an overcurrent protection signal generation circuit that, when the output current is in an overcurrent state, generates an overcurrent protection signal for turning off the switching element regardless of the switching control signal; and a delay circuit that delays the overcurrent protection signal.
摘要翻译：自激式DC-DC转换器包括切换输入电压的开关元件; 平滑电路，其使所述斩波电压平滑以产生输出电压; 和开关控制电路。开关控制电路包括切换控制信号生成电路，其通过比较输出电压的反馈电压和比较电压来生成用于开关元件的导通/截止控制的开关控制信号; 输出校正电路，根据反馈电压和参考电压之间的误差调整比较电压，并且当输出电流处于过电流状态时，降低比较电压的电平; 过电流保护信号产生电路，当输出电流处于过电流状态时，不管开关控制信号如何，都产生用于关断开关元件的过电流保护信号; 以及延迟过电流保护信号的延迟电路。

7. 发明授权

US08030976B2 Triangle wave generating circuit 有权
标题翻译：三角波发生电路
公开(公告)号：US08030976B2
公开(公告)日：2011-10-04
申请号：US12691544
申请日：2010-01-21
申请人： Mitsuru Ooyagi , Tomoaki Nishi
发明人： Mitsuru Ooyagi , Tomoaki Nishi
IPC分类号： H03K4/06
CPC分类号： H03K4/502 , H03K7/08
摘要： A triangle wave generating circuit comprising: a pulse generating circuit configured to generate a plurality of pulse signals with the same period and with phases different from one another; and a plurality of charge/discharge circuits configured to be supplied with the plurality of pulse signals, respectively, the plurality of charge/discharge circuits each including: a current supply circuit configured to supply to a capacitor a first current for charging at a predetermined current value or a second current for discharging at a predetermined current value; and a charge/discharge control circuit configured to switch between the first current and the second current when the pulse signals are supplied thereto and when a voltage across the capacitor reaches a predetermined reference voltage, the first current and the second current supplied from the current supply circuit to the capacitor.
摘要翻译：一种三角波生成电路，包括：脉冲发生电路，被配置为产生具有相同周期和相位彼此不同的多个脉冲信号; 以及多个充电/放电电路，分别被配置为被提供有多个脉冲信号，所述多个充电/放电电路各自包括：电流供给电路，被配置为向电容器提供用于以预定电流充电的第一电流值或第二电流，用于以预定电流值放电; 以及充电/放电控制电路，被配置为当提供脉冲信号时在第一电流和第二电流之间切换，并且当电容器两端的电压达到预定参考电压时，从电流源提供的第一电流和第二电流电路到电容器。

8. 发明授权

US08390212B2 Light-emitting element driving control circuit 有权
标题翻译：发光元件驱动控制电路
公开(公告)号：US08390212B2
公开(公告)日：2013-03-05
申请号：US12565476
申请日：2009-09-23
申请人： Tomoaki Nishi
发明人： Tomoaki Nishi
IPC分类号： H05B41/16
CPC分类号： H05B33/0815
摘要： A light-emitting-element-driving-control circuit comprising: a control circuit to turn on or off a transistor based on an input-control signal, the transistor being connected in series with a light-emitting element and an inductor connected in series and controlling increase and decrease of a driving current of the light-emitting element; a maximum-value-detection circuit to detect a maximum value of the driving current; and a control-signal-generation circuit to generate the control signal for turning on the transistor to increase the driving current at a speed corresponding to a level of a power-supply voltage when the driving current is smaller than the maximum value and turning off the transistor to be kept for a predetermined period to decrease the driving current at a speed corresponding to a level of a forward voltage of the light-emitting element when the driving current reaches the maximum value, based on a detection result of the maximum-value-detection circuit.
摘要翻译：一种发光元件驱动控制电路，包括：控制电路，用于基于输入控制信号导通或关断晶体管，所述晶体管与串联连接的发光元件和电感器串联连接，控制发光元件的驱动电流的增加和减少; 用于检测驱动电流的最大值的最大值检测电路; 以及控制信号生成电路，用于产生用于导通晶体管的控制信号，以在驱动电流小于最大值时以与电源电压的电平相对应的速度增加驱动电流，并且关闭晶体管被保持预定时间段，以基于最大值的晶体管的检测结果，以驱动电流达到最大值时以与发光元件的正向电压的电平相对应的速度来减小驱动电流。检测电路。

9. 发明授权

US5952856A Inductive load driving method and H-bridge circuit control device 失效
标题翻译：感应负载驱动方法和H桥电路控制装置
公开(公告)号：US5952856A
公开(公告)日：1999-09-14
申请号：US841384
申请日：1997-04-30
申请人： Kenji Horiguchi , Tomoaki Nishi , Shin Nakajima
发明人： Kenji Horiguchi , Tomoaki Nishi , Shin Nakajima
IPC分类号： H03K17/16 , H03K17/66 , H03K19/0175 , H02P1/22
CPC分类号： H03K17/16 , H03K17/663
摘要： A current detecting resistor is inserted in an H-bridge circuit constructed to cause the flow of a current to an inductive load in both forward and reverse directions by four semiconductor switching elements and flywheel diodes respectively connected in reverse parallel to the semiconductor switching elements. An inductive load driving method and an H-bridge circuit control device prevent an erroneous operation caused by noise generated at the current detecting resistor. When a current flowing through the inductive load is controlled by a detection voltage generated by the current detecting resistor, the value of the detection voltage is ignored immediately after the connection of the inductive load to a power source. There is no risk that an erroneous operation is caused by a rush current and/or a through current. When a power source regeneration is made to decrease a switching current, the inductive load is connected to the power source at a predetermined period and a current flowing at that time is detected as the detection voltage. There is no risk that the current becomes too small or the transfer to a steady is made while the current is large.
摘要翻译：电流检测电阻器被插入到H桥电路中，该H桥电路被构造成通过分别以与半导体开关元件反向并联连接的四个半导体开关元件和续流二极管在正向和反向两个方向上使电流流向电感负载。感性负载驱动方法和H桥电路控制装置防止由电流检测电阻器产生的噪声引起的错误操作。当流过感性负载的电流由电流检测电阻产生的检测电压控制时，在将感性负载连接到电源之后立即忽略检测电压的值。不存在由冲击电流和/或直流引起的错误操作的风险。当进行电源再生以降低开关电流时，感应负载以预定周期连接到电源，并且检测当时流过的电流作为检测电压。电流不会太大或者当前的电流变大时，不会产生稳定的风险。

10. 发明授权

US07944272B2 Constant current circuit 有权
标题翻译：恒流电路
公开(公告)号：US07944272B2
公开(公告)日：2011-05-17
申请号：US12568916
申请日：2009-09-29
申请人： Tomoaki Nishi
发明人： Tomoaki Nishi
IPC分类号： G05F1/10
CPC分类号： G05F3/30
摘要： A constant-current circuit comprising: a temperature-compensation circuit to output a temperature-compensated first current; and a current-supply circuit to supply a second current to the temperature-compensation circuit, the temperature-compensation circuit including a voltage-multiplication circuit including a first transistor to generate a base-collector voltage obtained by multiplying a base-emitter voltage by a predetermined ratio, a second transistor identical in conductivity type and substantially equal in base-emitter voltage to the first transistor, a first resistor having two ends connected to a first-transistor collector and second-transistor base, respectively, and a second resistor having two ends connected to first and second-transistor emitters, respectively, the first current being output according to a second-transistor collector current, the second current being supplied to a connection point between a second-transistor base and the first resistor, to generate between both ends of the first resistor a voltage varying substantially in proportion to temperature.
摘要翻译：一种恒流电路，包括：温度补偿电路，用于输出温度补偿的第一电流; 以及电流供给电路，用于向温度补偿电路提供第二电流，所述温度补偿电路包括电压乘法电路，所述电压倍增电路包括第一晶体管，以产生通过将基极 - 发射极电压乘以第一晶体管，分别与第一晶体管集电极和第二晶体管基极连接，第二电阻器具有两个与第一晶体管基极相同的基极 - 发射极电压的第二晶体管，分别连接到第一和第二晶体管发射极，第一电流根据第二晶体管集电极电流输出，第二电流被提供给第二晶体管基极和第一电阻器之间的连接点，以在两者之间产生第一电阻器的端部的电压基本上与温度成比例地变化。

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