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公开(公告)号：US08315027B2
公开(公告)日：2012-11-20
申请号：US12911096
申请日：2010-10-25
CPC分类号： H03K17/0822 , H03K2217/0063
摘要： A first overcurrent detecting circuit outputs a first time-up signal when a time period, in which an electric current flowing into the wire harness is greater than the first threshold, reaches a first duration time, which corresponds to a first threshold. A second overcurrent detecting circuit outputs a second time-up signal when a time period, in which an electric current flowing into the wire harness is greater than the second threshold, reaches a second duration time, which corresponds to a second threshold. The second threshold is less than the first threshold. The second duration time is longer than the first duration time. A determination circuit determines that an overcurrent flows into the wire harness and cause a control circuit to deactivate the switching element when inputting at least one of the first and second time-up signals.
摘要翻译： 当流入线束的电流大于第一阈值的时间段达到对应于第一阈值的第一持续时间时，第一过电流检测电路输出第一时间上升信号。 当流入线束的电流大于第二阈值的时间段达到对应于第二阈值的第二持续时间时，第二过电流检测电路输出第二时间上升信号。 第二阈值小于第一阈值。 第二个持续时间比第一个持续时间长。 确定电路确定当输入第一和第二时间信号中的至少一个时，过电流流入线束并使控制电路停用开关元件。
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公开(公告)号：US07471119B2
公开(公告)日：2008-12-30
申请号：US11798961
申请日：2007-05-18
CPC分类号： G01R19/16542 , H03K5/08
摘要： An electronic circuit device has a current correction circuit that supplies a correction current which is capable of offsetting an increment or a decrement of a consumption current of a signal processor circuit that varies based on a signal level of an input signal. Therefore, even if the consumption current of the signal processor circuit varies based on the signal level of the received input signal, the variation of the consumption current is offset by the current correction circuit. As a result, even if the consumption current varies based on the signal level of the input signal, since a current that flows in a resistor does not vary, a voltage drop can be held constant. Accordingly, it is possible to accurately conduct a comparison determination by a comparator.
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公开(公告)号：US20080001652A1
公开(公告)日：2008-01-03
申请号：US11798961
申请日：2007-05-18
IPC分类号： G05F1/10
CPC分类号： G01R19/16542 , H03K5/08
摘要： An electronic circuit device has a current correction circuit that supplies a correction current which is capable of offsetting an increment or a decrement of a consumption current of a signal processor circuit that varies based on a signal level of an input signal. Therefore, even if the consumption current of the signal processor circuit varies based on the signal level of the received input signal, the variation of the consumption current is offset by the current correction circuit. As a result, even if the consumption current varies based on the signal level of the input signal, since a current that flows in a resistor does not vary, a voltage drop can be held constant. Accordingly, it is possible to accurately conduct a comparison determination by a comparator.
摘要翻译： 电子电路装置具有电流校正电路，其提供校正电流，该校正电流能够抵消基于输入信号的信号电平而变化的信号处理器电路的消耗电流的增量或减量。 因此，即使信号处理电路的消耗电流根据接收到的输入信号的信号电平而变化，消耗电流的变化被电流校正电路偏移。 结果，即使消耗电流基于输入信号的信号电平而变化，由于在电阻器中流动的电流不变，所以可以保持电压降恒定。 因此，可以通过比较器准确地进行比较判定。
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公开(公告)号：US08653740B2
公开(公告)日：2014-02-18
申请号：US12913313
申请日：2010-10-27
IPC分类号： H05B37/02
CPC分类号： H05B39/047 , H02M3/156 , H03K7/08 , Y02B20/144
摘要： A switch device controls a voltage applied to a load element according to an electric power supply from a power source. A driver circuit controls activation and deactivation of the switch device. A circuit portion sets a duty ratio and output the duty ratio to the driver circuit for causing the driver circuit to activate the switch device according to the duty ratio to control a voltage applied to the load element. The circuit portion sets the duty ratio according to a duty ratio characteristic curve. In the duty ratio characteristic curve, the duty ratio decreases gradually with increase in a voltage of the power source, and decrease in the duty ratio with increase in the voltage of the power source becomes small gradually.
摘要翻译： 开关装置根据来自电源的电力供应来控制施加到负载元件的电压。 驱动器电路控制开关器件的激活和去激活。 电路部分设置占空比并将占空比输出到驱动电路，以使驱动电路根据占空比激活开关装置，以控制施加到负载元件的电压。 电路部根据占空比特性曲线设定占空比。 在占空比特性曲线中，占空比随着电源电压的增加而逐渐减小，随着电源电压的上升而占空比的降低逐渐变小。
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公开(公告)号：US20110101886A1
公开(公告)日：2011-05-05
申请号：US12913313
申请日：2010-10-27
CPC分类号： H05B39/047 , H02M3/156 , H03K7/08 , Y02B20/144
摘要： A switch device controls a voltage applied to a load element according to an electric power supply from a power source. A driver circuit controls activation and deactivation of the switch device. A circuit portion sets a duty ratio and output the duty ratio to the driver circuit for causing the driver circuit to activate the switch device according to the duty ratio to control a voltage applied to the load element. The circuit portion sets the duty ratio according to a duty ratio characteristic curve. In the duty ratio characteristic curve, the duty ratio decreases gradually with increase in a voltage of the power source, and decrease in the duty ratio with increase in the voltage of the power source becomes small gradually.
摘要翻译： 开关装置根据来自电源的电力供应来控制施加到负载元件的电压。 驱动器电路控制开关器件的激活和去激活。 电路部分设置占空比并将占空比输出到驱动电路，以使驱动电路根据占空比激活开关装置，以控制施加到负载元件的电压。 电路部根据占空比特性曲线设定占空比。 在占空比特性曲线中，占空比随着电源电压的增加而逐渐减小，随着电源电压的上升而占空比的降低逐渐变小。
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公开(公告)号：US20050073428A1
公开(公告)日：2005-04-07
申请号：US10952778
申请日：2004-09-30
申请人： Shigekazu Sugimoto , Yoshichika Abe
发明人： Shigekazu Sugimoto , Yoshichika Abe
CPC分类号： G01R15/04 , G01R19/16542 , H05B33/089
摘要： An indicator system having light emitting diode (LED) indicators and an open-circuit detecting circuit. In the open-circuit detecting circuit, a voltage at a point between a constant current source and the first resistor is applied to a base of a transistor. The second resistor is connected in parallel between the base and an emitter of the transistor. The third and the fourth resistors are connected in series between the constant current source and a collector of the transistor. The fifth resistor is connected between the emitter of the transistor and the first resistor. The threshold determining circuit determines a voltage at a point between the third and the fourth resistors as a threshold voltage. With this configuration, the threshold voltage can be adjusted according to the resistance of the first resistor.
摘要翻译： 具有发光二极管（LED）指示器和开路检测电路的指示器系统。 在开路检测电路中，恒流源与第一电阻之间的电压被施加到晶体管的基极。 第二电阻器并联连接在晶体管的基极和发射极之间。 第三和第四电阻串联连接在恒流源和晶体管的集电极之间。 第五个电阻连接在晶体管的发射极和第一个电阻之间。 阈值确定电路将第三和第四电阻器之间的点处的电压确定为阈值电压。 利用这种配置，可以根据第一电阻器的电阻来调节阈值电压。
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公开(公告)号：US08441767B2
公开(公告)日：2013-05-14
申请号：US13033984
申请日：2011-02-24
CPC分类号： H02H9/02
摘要： An overcurrent protection circuit includes a load driver for driving a load, a controller for turning ON and OFF the load driver, a current sensor for measuring a load current flowing through the load, and an add/subtract circuit for performing both an addition operation and a subtraction operation on a previous calculation result or for performing only the subtraction operation on the previous calculation result so as to produce a present calculation result. The addition operation uses an added value depending on the presently measured current. The subtraction operation uses a subtracted value depending on the presently measured current. The controller turns OFF the load driver, when the present calculation result of the add/subtract circuit exceeds a predetermined determination value.
摘要翻译： 过电流保护电路包括用于驱动负载的负载驱动器，用于接通和断开负载驱动器的控制器，用于测量流过负载的负载电流的电流传感器，以及用于执行加法运算和加法运算的加/减电路， 对先前的计算结果进行减法运算，或仅针对先前计算结果执行减法运算，以产生当前计算结果。 添加操作根据当前测量的电流使用附加值。 减法运算根据当前测量的电流使用减法值。 当加法/减法电路的当前计算结果超过预定的确定值时，控制器关闭负载驱动器。
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公开(公告)号：US20110216448A1
公开(公告)日：2011-09-08
申请号：US13033984
申请日：2011-02-24
IPC分类号： H02H9/02
CPC分类号： H02H9/02
摘要： An overcurrent protection circuit includes a load driver for driving a load, a controller for turning ON and OFF the load driver, a current sensor for measuring a load current flowing through the load, and an add/subtract circuit for performing both an addition operation and a subtraction operation on a previous calculation result or for performing only the subtraction operation on the previous calculation result so as to produce a present calculation result. The addition operation uses an added value depending on the presently measured current. The subtraction operation uses a subtracted value depending on the presently measured current. The controller turns OFF the load driver, when the present calculation result of the add/subtract circuit exceeds a predetermined determination value.
摘要翻译： 过电流保护电路包括用于驱动负载的负载驱动器，用于接通和断开负载驱动器的控制器，用于测量流过负载的负载电流的电流传感器，以及用于执行加法运算和加法运算的加/减电路， 对先前的计算结果进行减法运算，或仅针对先前计算结果执行减法运算，以产生当前计算结果。 添加操作根据当前测量的电流使用附加值。 减法运算根据当前测量的电流使用减法值。 当加法/减法电路的当前计算结果超过预定的确定值时，控制器关闭负载驱动器。
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公开(公告)号：US5907252A
公开(公告)日：1999-05-25
申请号：US935728
申请日：1997-09-23
CPC分类号： H01H47/22 , H01F2007/1894
摘要： A driving circuit for the electromagnetic relay provides a coil of the electromagnetic relay with stepped voltage having a first voltage which is slightly larger than a minimum operating voltage which caused the coil to generate magnetic field capable of closing contacts of the electromagnetic relay and a second voltage higher than the first voltage, in response to a triggering signal to trigger the electromagnetic relay. According to this structure, because the first voltage lower than the second voltage is applied to the coil firstly, the contacts are closed by attracting force of the coil risen gently. As a result, the bouncing of the moving contact can be prevented. In addition, the response time required for the closing of the contacts can be prevented to become long.
摘要翻译： 用于电磁继电器的驱动电路为电磁继电器的线圈提供阶梯电压，其阶梯电压具有稍大于使线圈产生能够闭合电磁继电器的触点的磁场的最小工作电压的第一电压，以及第二电压 高于第一电压，响应触发信号触发电磁继电器。 根据该结构，由于首先将低于第二电压的第一电压施加到线圈，所以通过线圈的吸引力轻轻地闭合触点。 结果，可以防止移动接触件的弹跳。 此外，可以防止触点闭合所需的响应时间变长。
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公开(公告)号：US07123136B2
公开(公告)日：2006-10-17
申请号：US10952778
申请日：2004-09-30
申请人： Shigekazu Sugimoto , Yoshichika Abe
发明人： Shigekazu Sugimoto , Yoshichika Abe
IPC分类号： B60Q1/26
CPC分类号： G01R15/04 , G01R19/16542 , H05B33/089
摘要： An indicator system having light emitting diode (LED) indicators and an open-circuit detecting circuit. In the open-circuit detecting circuit, a voltage at a point between a constant current source and the first resistor is applied to a base of a transistor. The second resistor is connected in parallel between the base and an emitter of the transistor. The third and the fourth resistors are connected in series between the constant current source and a collector of the transistor. The fifth resistor is connected between the emitter of the transistor and the first resistor. The threshold determining circuit determines a voltage at a point between the third and the fourth resistors as a threshold voltage. With this configuration, the threshold voltage can be adjusted according to the resistance of the first resistor.
摘要翻译： 具有发光二极管（LED）指示器和开路检测电路的指示器系统。 在开路检测电路中，恒流源与第一电阻之间的电压被施加到晶体管的基极。 第二电阻器并联连接在晶体管的基极和发射极之间。 第三和第四电阻串联连接在恒流源和晶体管的集电极之间。 第五个电阻连接在晶体管的发射极和第一个电阻之间。 阈值确定电路将第三和第四电阻器之间的点处的电压确定为阈值电压。 利用这种配置，可以根据第一电阻器的电阻来调节阈值电压。
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