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公开(公告)号：US20090237853A1
公开(公告)日：2009-09-24
申请号：US12307321
申请日：2007-06-21
申请人： Yuji Kato , Keiichi Sekiguchi , Kiyokatsu Satoh
发明人： Yuji Kato , Keiichi Sekiguchi , Kiyokatsu Satoh
IPC分类号： H02H5/04
CPC分类号： H03K17/0822 , H03K2017/0806
摘要： A load drive apparatus is provided which comprises a switching element 3 connected in series to a DC power source Vccand an electric load 4, a drive circuit 5 for generating control signals to turn switching element 3 on and off, a thermal detection element 6 for sensing a temperature of switching element 3, an overheat protective circuit 7 for generating an overheat detection signal when thermal detection element 6 senses the temperature of switching element 3 over a predetermined temperature level, and a disconnection detection circuit 11 provided with a current mirror circuit 12 connected between one and the other terminals of thermal detection element 6 for detecting a disconnection in wiring between thermal detection element 6 and overheat protective circuit 7. When overheat protective circuit 7 produces an overheat detection signal or when disconnection detection circuit 11 detects a breaking of wiring between thermal detection element 6 and overheat protective circuit 7, the control signal from drive circuit 5 is prohibited to be given to switching element 3. In case of disconnection in wiring between the thirmal detection element 6 and overheat protective circuit 7, the load drive apparatus can prevent thermal damage to the switching element used therein.
摘要翻译： 提供一种负载驱动装置，其包括与DC电源Vcc和电负载4串联连接的开关元件3，用于产生控制信号以使开关元件3导通和截止的驱动电路5，用于感测的热检测元件6 开关元件3的温度，当热检测元件6在预定温度水平上感测开关元件3的温度时产生过热检测信号的过热保护电路7以及连接有电流镜电路12的断路检测电路11 用于检测热检测元件6和过热保护电路7之间的布线断开的热检测元件6的一个端子和另一个端子之间。当过热保护电路7产生过热检测信号时，或者当断路检测电路11检测到 热检测元件6和过热保护电路7， 来自驱动电路5的起动信号被禁止提供给开关元件3.在这些检测元件6与过热保护电路7之间的布线断开的情况下，负载驱动装置可以防止对其中使用的开关元件的热损坏。
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公开(公告)号：US07990674B2
公开(公告)日：2011-08-02
申请号：US12307321
申请日：2007-06-21
申请人： Yuji Kato , Keiichi Sekiguchi , Kiyokatsu Satoh
发明人： Yuji Kato , Keiichi Sekiguchi , Kiyokatsu Satoh
IPC分类号： H02H5/04
CPC分类号： H03K17/0822 , H03K2017/0806
摘要： A load drive apparatus is provided which comprises a switching element 3 connected in series to a DC power source Vcc and an electric load 4, a drive circuit 5 for generating control signals to turn switching element 3 on and off, a thermal detection element 6 for sensing a temperature of switching element 3, an overheat protective circuit 7 for generating an overheat detection signal when thermal detection element 6 senses the temperature of switching element 3 over a predetermined temperature level, and a disconnection detection circuit 11 provided with a current mirror circuit 12 connected between one and the other terminals of thermal detection element 6 for detecting a disconnection in wiring between thermal detection element 6 and overheat protective circuit 7. When overheat protective circuit 7 produces an overheat detection signal or when disconnection detection circuit 11 detects a breaking of wiring between thermal detection element 6 and overheat protective circuit 7, the control signal from drive circuit 5 is prohibited to be given to switching element 3. In case of disconnection in wiring between the thermal detection element 6 and overheat protective circuit 7, the load drive apparatus can prevent thermal damage to the switching element used therein.
摘要翻译： 提供一种负载驱动装置，其包括与DC电源Vcc和电负载4串联连接的开关元件3，用于产生控制信号以使开关元件3接通和断开的驱动电路5，用于 感测开关元件3的温度，当热检测元件6感测到开关元件3的温度超过预定温度电平时产生过热检测信号的过热保护电路7以及设置有电流镜电路12的断路检测电路11 连接在热检测元件6的一个端子和另一个端子之间，用于检测热检测元件6和过热保护电路7之间的布线断开。当过热保护电路7产生过热检测信号或当断路检测电路11检测到布线断线时 在热检测元件6和过热保护电路7之间， 来自驱动电路5的控制信号被禁止提供给开关元件3.在热检测元件6与过热保护电路7之间的布线断开的情况下，负载驱动装置可以防止对其中使用的开关元件的热损坏。
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公开(公告)号：US08711529B2
公开(公告)日：2014-04-29
申请号：US13121958
申请日：2010-03-24
IPC分类号： H02H3/00
CPC分类号： H02M3/156 , H02M2003/1555
摘要： A switching apparatus includes a DC voltage output unit, a switching element to supply the DC voltage to a load, a power detection unit to detect power supplied from the switching element to the load, a drive unit to control the switching element in PWM manner according to an output from the power detection unit, and a stop unit to stop the PWM control if a value of the DC voltage is lower than a first threshold value. The first threshold value is lower than a minimum operation voltage value of the power detection unit.
摘要翻译： 开关装置包括直流电压输出单元，向负载提供直流电压的开关元件，检测从开关元件供给负载的电力的功率检测单元，以PWM方式控制开关元件的驱动单元 到电力检测单元的输出;以及停止单元，如果直流电压的值低于第一阈值，则停止PWM控制。 第一阈值低于功率检测单元的最小工作电压值。
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公开(公告)号：US07423857B2
公开(公告)日：2008-09-09
申请号：US10495015
申请日：2002-12-03
申请人： Kiyokatsu Satoh , Yasuo Kurosu
发明人： Kiyokatsu Satoh , Yasuo Kurosu
CPC分类号： G01R1/203 , G01R19/0092 , G01R19/32
摘要： By switching the NMOS (11) on and off, a drive current passes through a solenoid (15). The drive current passes through a conversion circuit (16), and an amplifier circuit (17) outputs a current detection result by amplifying the output voltage of the conversion circuit (16). Because a plurality of resistor elements (161 to 16n) that constitute the conversion circuit (16), together with elements that constitute the amplifier circuit (17) are formed diffused to a semiconductor substrate (100), even if the attribute changes by the conversion circuit (16) generating heat, by the drive current, the amplifier circuit (17) becomes approximately the same temperature, and the attribute changes. Therefore, a highly accurate current detection becomes possible without using components for temperature correction.
摘要翻译： 通过切换NMOS（11），驱动电流通过螺线管（15）。 驱动电流通过转换电路（16），放大电路（17）通过放大转换电路（16）的输出电压来输出电流检测结果。 由于构成转换电路（16）的多个电阻元件（16×1〜16n）与构成放大电路（17）的元件一起形成为扩散到半导体基板（100） 即使通过转换电路（16）的属性改变，通过驱动电流，放大器电路（17）变成大致相同的温度，并且属性改变。 因此，在不使用用于温度校正的部件的情况下，可以进行高精度的电流检测。
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公开(公告)号：US5923151A
公开(公告)日：1999-07-13
申请号：US57696
申请日：1998-04-09
申请人： Kiyokatsu Satoh
发明人： Kiyokatsu Satoh
摘要： A motor vehicle electrical system having an engine-driven generator for supplying electrical loads on the vehicle, and a semiconductor switch connected in series with the field winding of the generator for on-off control of its excitation. The generator output voltage is constantly compared with a reference voltage in order to provide a duration modulated pulse signal. During steady-state operation, when the sensed generator voltage develops higher than the reference voltage during each prescribed period of time, the switch is biased on and off by the first duration modulated pulse signal. In the event of an abrupt rise in energy requirement from the loads, when the sensed generator voltage does not grow higher than the reference voltage within the preset time, a second duration modulated pulse signal is applied to the switch in order to make progressively longer the excitation periods of the generator field winding. The second duration modulated pulse signal is created mainly by a digital integrated circuit comprising two down counters.
摘要翻译： 一种具有用于在车辆上提供电力负载的发动机驱动发电机的机动车辆电气系统，以及与发电机的励磁绕组串联连接的半导体开关，用于其激励的开关控制。 发电机输出电压不断与参考电压进行比较，以提供持续时间调制脉冲信号。 在稳态运行期间，当感测到的发电机电压在每个规定的时间段内产生高于参考电压时，开关被第一持续时间调制的脉冲信号偏置开和关。 在来自负载的能量需求突然上升的情况下，当感测到的发电机电压在预设时间内没有增加到高于参考电压时，将第二持续时间调制脉冲信号施加到开关，以便逐渐变长 发电机励磁绕组的励磁周期。 第二持续时间调制脉冲信号主要由包括两个向下计数器的数字集成电路产生。
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公开(公告)号：US20110176249A1
公开(公告)日：2011-07-21
申请号：US13121958
申请日：2010-03-24
CPC分类号： H02M3/156 , H02M2003/1555
摘要： A switching apparatus includes a DC voltage output unit, a switching element to supply the DC voltage to a load, a power detection unit to detect power supplied from the switching element to the load, a drive unit to control the switching element in PWM manner according to an output from the power detection unit, and a stop unit to stop the PWM control if a value of the DC voltage is lower than a first threshold value. The first threshold value is lower than a minimum operation voltage value of the power detection unit.
摘要翻译： 开关装置包括直流电压输出单元，向负载提供直流电压的开关元件，检测从开关元件供给负载的电力的功率检测单元，以PWM方式控制开关元件的驱动单元 到电力检测单元的输出;以及停止单元，如果直流电压的值低于第一阈值，则停止PWM控制。 第一阈值低于功率检测单元的最小工作电压值。
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公开(公告)号：US07471496B2
公开(公告)日：2008-12-30
申请号：US11265181
申请日：2005-11-03
申请人： Kiyokatsu Satoh , Junichi Katoh
发明人： Kiyokatsu Satoh , Junichi Katoh
IPC分类号： H01H47/00
CPC分类号： H01H47/325 , H02H9/047
摘要： A solenoid driving apparatus that drives a solenoid by intermittently supplying an exciting current comprises a first current switching element turned ON and OFF so as to switchably allow and block passage of the exciting current supplied to the solenoid L, a loop current circuit 3 being connected to the first current switching element and passing a loop current caused by stored energy in the solenoid when the supply of the exciting current to the solenoid is stopped by the first current switching element, and a second current switching element being disposed between the solenoid and a junction of the first current switching element and the loop current circuit, and being turned ON and OFF so as to switchably allow and block passage of the exciting current and the loop current.
摘要翻译： 通过间歇地供给励磁电流来驱动螺线管的螺线管驱动装置包括：接通和断开的第一电流开关元件，以便可切换地允许和阻止提供给螺线管L的励磁电流的通过;环路电流电路3连接到 所述第一电流开关元件并且当由所述第一电流开关元件停止向所述螺线管提供激励电流时，将由存储的能量引起的环路电流传递到所述螺线管中，并且所述第二电流开关元件设置在所述螺线管和所述连接点之间 的第一电流开关元件和环路电流电路，并且被导通和截止，以便可切换地允许和阻止励磁电流和回路电流的通过。
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公开(公告)号：US20060098376A1
公开(公告)日：2006-05-11
申请号：US11265181
申请日：2005-11-03
申请人： Kiyokatsu Satoh , Junichi Katoh
发明人： Kiyokatsu Satoh , Junichi Katoh
IPC分类号： H01H47/00
CPC分类号： H01H47/325 , H02H9/047
摘要： A solenoid driving apparatus that drives a solenoid by intermittently supplying an exciting current comprises a first current switching element turned ON and OFF so as to switchably allow and block passage of the exciting current supplied to the solenoid L, a loop current circuit 3 being connected to the first current switching element and passing a loop current caused by stored energy in the solenoid when the supply of the exciting current to the solenoid is stopped by the first current switching element, and a second current switching element being disposed between the solenoid and a junction of the first current switching element and the loop current circuit, and being turned ON and OFF so as to switchably allow and block passage of the exciting current and the loop current.
摘要翻译： 通过间歇地供给励磁电流来驱动螺线管的螺线管驱动装置包括：接通和断开的第一电流开关元件，以便可切换地允许和阻止提供给螺线管L的励磁电流的通过;环路电流电路3连接到 所述第一电流开关元件并且当由所述第一电流开关元件停止向所述螺线管提供激励电流时，将由存储的能量引起的环路电流传递到所述螺线管中，并且所述第二电流开关元件设置在所述螺线管和所述连接点之间 的第一电流开关元件和环路电流电路，并且被导通和截止，以便可切换地允许和阻止励磁电流和回路电流的通过。
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公开(公告)号：US08169765B2
公开(公告)日：2012-05-01
申请号：US12993698
申请日：2009-04-27
申请人： Yasuyuki Matsunaga , Kiyokatsu Satoh , Koji Ebata
发明人： Yasuyuki Matsunaga , Kiyokatsu Satoh , Koji Ebata
IPC分类号： H01H9/00
CPC分类号： H01F7/1844 , H01F2007/1888 , H03K17/0822 , H03K17/18 , H03K2017/0806 , H04L25/0268 , H04L25/0282
摘要： A high-side driver has a semiconductor element being connected in series in a power supply path extending from a DC power source to a linear solenoid and turned on/off to control a current of the linear solenoid. The high-side driver includes a current detector of a current of the linear solenoid, a controller of the semiconductor element, a state detector of the high-side driver or the linear solenoid and output a state signal, a first transmit buffer to latch and output the state signal, a second transmit buffer to output the state signal without latching the same, and a transmit shift register to convert the state signal into serial data and transmit the serial data to an external device at predetermined timing. The state detector selects at least one of the first and second transmit buffers and outputs the state signal to the selected one.
摘要翻译： 高侧驱动器的半导体元件串联连接在从直流电源延伸到线性电磁线圈的电源路径中，并且导通/截止以控制线性电磁线圈的电流。 高侧驱动器包括线性电磁线圈的电流的电流检测器，半导体元件的控制器，高侧驱动器或线性电磁阀的状态检测器，并输出状态信号，第一发送缓冲器和锁存器 输出状态信号，第二发送缓冲器，用于输出状态信号而不锁存状态信号;以及发送移位寄存器，用于将状态信号转换为串行数据，并以预定的时序将串行数据发送到外部设备。 状态检测器选择第一和第二发送缓冲器中的至少一个，并将该状态信号输出到所选择的缓冲器。
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公开(公告)号：US20110089919A1
公开(公告)日：2011-04-21
申请号：US12993698
申请日：2009-04-27
申请人： Yasuyuki Matsunaga , Kiyokatsu Satoh , Koji Ebata
发明人： Yasuyuki Matsunaga , Kiyokatsu Satoh , Koji Ebata
IPC分类号： G05F1/00
CPC分类号： H01F7/1844 , H01F2007/1888 , H03K17/0822 , H03K17/18 , H03K2017/0806 , H04L25/0268 , H04L25/0282
摘要： A high-side driver has a semiconductor element being connected in series in a power supply path extending from a DC power source to a linear solenoid and turned on/off to control a current of the linear solenoid. The high-side driver includes a current detector of a current of the linear solenoid, a controller of the semiconductor element, a state detector of the high-side driver or the linear solenoid and output a state signal, a first transmit buffer to latch and output the state signal, a second transmit buffer to output the state signal without latching the same, and a transmit shift register to convert the state signal into serial data and transmit the serial data to an external device at predetermined timing. The state detector selects at least one of the first and second transmit buffers and outputs the state signal to the selected one.
摘要翻译： 高侧驱动器的半导体元件串联连接在从直流电源延伸到线性电磁线圈的电源路径中，并且导通/截止以控制线性电磁线圈的电流。 高侧驱动器包括线性电磁线圈的电流的电流检测器，半导体元件的控制器，高侧驱动器或线性电磁阀的状态检测器，并输出状态信号，第一发送缓冲器和锁存器 输出状态信号，第二发送缓冲器，用于输出状态信号而不锁存状态信号;以及发送移位寄存器，用于将状态信号转换为串行数据，并以预定的时序将串行数据发送到外部设备。 状态检测器选择第一和第二发送缓冲器中的至少一个，并将该状态信号输出到所选择的缓冲器。
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