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公开(公告)号：US20110254527A1
公开(公告)日：2011-10-20
申请号：US13141203
申请日：2008-12-26
CPC分类号： G05F1/56 , H02M3/28 , H02M2001/0032 , H02M2001/0045 , Y02B70/16 , Y10T307/944
摘要： In the analog current output circuit according to the present invention, a rising start position and a tilt of an internal control voltage are set such that it crosses, at the maximum of an analog output current, a load end voltage obtained when the resistance of a load is the one near the center of a specification range. According to a comparison result in a comparator, a switch causes a DC/DC converter to input a high reference voltage and causes an output transistor to output a high power supply voltage when the internal control voltage is smaller than the load end voltage and causes the DC/DC converter to input a low reference voltage and causes the output transistor to output a low power supply voltage when the internal control voltage is larger than the load end voltage.
摘要翻译： 在根据本发明的模拟电流输出电路中，设置内部控制电压的上升起始位置和倾斜，使得它以模拟输出电流的最大值跨过当电流为 负载是接近规格范围中心的负载。 根据比较器的比较结果，当内部控制电压小于负载端电压时，开关使DC / DC转换器输入高参考电压并使输出晶体管输出高电源电压，并且使得 DC / DC转换器输入低参考电压，并且当内部控制电压大于负载端电压时，使输出晶体管输出低电源电压。
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公开(公告)号：US20100019828A1
公开(公告)日：2010-01-28
申请号：US12525556
申请日：2008-04-14
IPC分类号： H03K17/94
CPC分类号： H03K17/002 , G01R1/206 , G01R19/2506 , H03K17/005 , H03K17/691 , H03M1/08 , H03M1/1225 , H03M1/1245
摘要： An analog multiplexer with an insulated power supply includes: an analog signal transformer receiving an analog signal input in its primary winding via an FET, and ON/OFF driving the FET to generate a pulse with an amplitude of the analog signal in its secondary winding; a drive transformer receiving a drive pulse input in its primary winding via an FET to generate a pulse turning ON/OFF the FET in its secondary winding; an inhibit generation circuit generating an inhibit pulse having a wider pulse width than that of the drive pulse; an AND gate determining a logical product of a continuous pulse from a continuous pulse generation circuit and the inhibit pulse to obtain a power supply pulse train; and a rectifying/smoothing circuit obtaining a direct current voltage corresponding to the power supply pulse train to apply the direct current voltage to the primary winding of the transformer through high resistance.
摘要翻译： 具有绝缘电源的模拟多路复用器包括：模拟信号变压器，其经由FET接收在其初级绕组中输入的模拟信号，以及驱动FET的ON / OFF以在其次级绕组中产生具有模拟信号幅度的脉冲; 驱动变压器经由FET接收其初级绕组中的驱动脉冲输入，以产生在其次级绕组中接通/断开FET的脉冲; 禁止产生电路，产生具有比驱动脉冲宽的脉冲宽度的禁止脉冲; AND门，其确定来自连续脉冲发生电路的连续脉冲和禁止脉冲的逻辑积，以获得电源脉冲串; 以及整流/平滑电路，获得与电源脉冲串相对应的直流电压，以通过高电阻将直流电压施加到变压器的初级绕组。
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公开(公告)号：US08810078B2
公开(公告)日：2014-08-19
申请号：US13141203
申请日：2008-12-26
IPC分类号： H01H9/54
CPC分类号： G05F1/56 , H02M3/28 , H02M2001/0032 , H02M2001/0045 , Y02B70/16 , Y10T307/944
摘要： In the analog current output circuit according to the present invention, a rising start position and a tilt of an internal control voltage are set such that it crosses, at the maximum of an analog output current, a load end voltage obtained when the resistance of a load is the one near the center of a specification range. According to a comparison result in a comparator, a switch causes a DC/DC converter to input a high reference voltage and causes an output transistor to output a high power supply voltage when the internal control voltage is smaller than the load end voltage and causes the DC/DC converter to input a low reference voltage and causes the output transistor to output a low power supply voltage when the internal control voltage is larger than the load end voltage.
摘要翻译： 在根据本发明的模拟电流输出电路中，设置内部控制电压的上升起始位置和倾斜，使得它以模拟输出电流的最大值跨过当电流为 负载是接近规格范围中心的负载。 根据比较器的比较结果，当内部控制电压小于负载端电压时，开关使DC / DC转换器输入高参考电压并使输出晶体管输出高电源电压，并且使得 DC / DC转换器输入低参考电压，并且当内部控制电压大于负载端电压时，使输出晶体管输出低电源电压。
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公开(公告)号：US07898315B2
公开(公告)日：2011-03-01
申请号：US12525556
申请日：2008-04-14
IPC分类号： H03K17/00
CPC分类号： H03K17/002 , G01R1/206 , G01R19/2506 , H03K17/005 , H03K17/691 , H03M1/08 , H03M1/1225 , H03M1/1245
摘要： An analog multiplexer with an insulated power supply includes: an analog signal transformer receiving an analog signal input in its primary winding via an FET, and ON/OFF driving the FET to generate a pulse with an amplitude of the analog signal in its secondary winding; a drive transformer receiving a drive pulse input in its primary winding via an FET to generate a pulse turning ON/OFF the FET in its secondary winding; an inhibit generation circuit generating an inhibit pulse having a wider pulse width than that of the drive pulse; an AND gate determining a logical product of a continuous pulse from a continuous pulse generation circuit and the inhibit pulse to obtain a power supply pulse train; and a rectifying/smoothing circuit obtaining a direct current voltage corresponding to the power supply pulse train to apply the direct current voltage to the primary winding of the transformer through high resistance.
摘要翻译： 具有绝缘电源的模拟多路复用器包括：模拟信号变压器，其经由FET接收在其初级绕组中输入的模拟信号，以及驱动FET的ON / OFF以在其次级绕组中产生具有模拟信号幅度的脉冲; 驱动变压器经由FET接收其初级绕组中的驱动脉冲输入，以产生在其次级绕组中接通/断开FET的脉冲; 禁止产生电路，产生具有比驱动脉冲宽的脉冲宽度的禁止脉冲; AND门，其确定来自连续脉冲发生电路的连续脉冲和禁止脉冲的逻辑积，以获得电源脉冲串; 以及整流/平滑电路，获得与电源脉冲串相对应的直流电压，以通过高电阻将直流电压施加到变压器的初级绕组。
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公开(公告)号：US08063768B2
公开(公告)日：2011-11-22
申请号：US11792057
申请日：2005-04-14
IPC分类号： H04Q1/30
CPC分类号： H04B3/56 , H04B2203/5483
摘要： Provided is a modem apparatus of power line communication using a power line as a transmission path. The modem apparatus includes: an amplifier for amplifying communication signals and outputting a differential signal obtained from a pair of output signals having a phase difference of 180 degrees therebetween; a signal transformer for applying the amplified communication signals to the power lines; and a balance circuit connected at the primary side of the signal transformer, for enhancing circuit balancing. The balance circuit is constituted by a variable element capable of changing an element value, and there is provided a common mode detecting circuit that detects a common mode current flowing through the secondary side of the signal transformer and that changes the element value of the variable element of the balance circuit such that the detected common mode current becomes small.
摘要翻译： 提供了使用电力线作为传输路径的电力线通信的调制解调器装置。 调制解调器装置包括：放大器，用于放大通信信号并输出从具有180度相位差的一对输出信号获得的差分信号; 用于将放大的通信信号施加到电力线的信号变换器; 以及连接在信号变压器初级侧的平衡电路，用于增强电路平衡。 平衡电路由能够改变元件值的可变元件构成，并且提供了共模检测电路，其检测流过信号变压器次级侧的共模电流，并且改变可变元件的元件值 使得检测到的共模电流变小。
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公开(公告)号：US08120367B2
公开(公告)日：2012-02-21
申请号：US12438366
申请日：2006-12-14
IPC分类号： G01R31/10
CPC分类号： G01K7/026 , G01D3/08 , G01R31/026 , H03M1/0827 , H03M1/1076 , H03M1/1225
摘要： An analog input device including a scanning circuit including a first insulation transformer insulating an analog signal inputted from a thermocouple, a power supply section charging a test voltage used for disconnection detection of the thermocouple, a second insulation transformer in which the scanning circuit and the power supply section are connected in parallel, and a control circuit for outputting a pulse signal to be inputted to the second insulation transformer. The second insulation transformer insulates and transfers a drive pulse for switching the scanning circuit and a power supply pulse for feeding power to the power supply section. The control circuit carries out a timing control so that the drive pulse and the power supply pulse are not outputted at the same time. Accordingly, an insulation transformer for application of a test voltage is not required, and thus the total number of the components is reduced to a great extent and reductions in costs and size thereof are realized.
摘要翻译： 一种模拟输入装置，包括：扫描电路，包括绝缘从热电偶输入的模拟信号的第一绝缘变压器;对用于热电偶的断开检测的测试电压进行充电的电源部;第二绝缘变压器，其中扫描电路和电源 供电部分并联连接的控制电路和用于输出要输入到第二绝缘变压器的脉冲信号的控制电路。 第二绝缘变压器绝缘并传送用于切换扫描电路的驱动脉冲和用于向电源部分供电的电源脉冲。 控制电路执行定时控制，使得驱动脉冲和电源脉冲不被同时输出。 因此，不需要用于施加测试电压的绝缘变压器，从而在很大程度上降低了组件的总数，并且实现了成本和尺寸的降低。
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公开(公告)号：US20090257260A1
公开(公告)日：2009-10-15
申请号：US12438366
申请日：2006-12-14
IPC分类号： H02M7/06
CPC分类号： G01K7/026 , G01D3/08 , G01R31/026 , H03M1/0827 , H03M1/1076 , H03M1/1225
摘要： An analog input device according to the present invention includes a scanning circuit (3) including a first insulation transformer (T1) for insulating an analog signal inputted from a thermocouple (10), a power supply section (2) for charging a test voltage used for disconnection detection of the thermocouple (10), a second insulation transformer (T2) in which the scanning circuit (3) and the power supply section (2) are connected in parallel, and a control circuit (8) for outputting a pulse signal to be inputted to the second insulation transformer (T2). In the analog input device, the second insulation transformer (T2) insulates and transfers a drive pulse (41) for switching the scanning circuit (3) and a power supply pulse (42) for feeding power to the power supply section (2). The control circuit (8) carries out a timing control so that the drive pulse (41) and the power supply pulse (42) are not outputted at the same time. Accordingly, an insulation transformer for application of a test voltage is not required, and thus the total number of the components is reduced to a great extent and reductions in costs and size thereof are realized.
摘要翻译： 根据本发明的模拟输入装置包括：扫描电路（3），包括用于绝缘从热电偶（10）输入的模拟信号的第一绝缘变压器（T1）;用于对所使用的测试电压进行充电的电源部分（2） 对于热电偶（10）的断开检测，并联连接有扫描电路（3）和电源部（2）的第二绝缘变压器（T2）和用于输出脉冲信号的控制电路（8） 被输入到第二绝缘变压器（T2）。 在模拟输入装置中，第二绝缘变压器（T2）绝缘并传送用于切换扫描电路（3）的驱动脉冲（41）和用于向电源部分（2）供电的电源脉冲（42）。 控制电路（8）执行定时控制，使得驱动脉冲（41）和电源脉冲（42）不被同时输出。 因此，不需要用于施加测试电压的绝缘变压器，从而在很大程度上降低了组件的总数，并且实现了成本和尺寸的降低。
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公开(公告)号：US20100164772A1
公开(公告)日：2010-07-01
申请号：US12595963
申请日：2008-05-09
申请人： Seiichi Saito , Yoshihiro Akeboshi
发明人： Seiichi Saito , Yoshihiro Akeboshi
IPC分类号： H03M1/00
CPC分类号： H03M1/1245 , H03K17/005 , H03K17/161 , H03K17/691 , H03M1/0827 , H03M1/1215
摘要： An amplifier for amplifying a pulse-like signal output from a secondary side of an isolating transformer, a capacitor connected to a negative feedback loop across the input and output of the amplifier, and a timing control circuit for controlling an FET into a closed state, then controlling a switch into a closed state, and after that controlling the switch into an open state at timing simultaneously with the FET or earlier than the FET are provided, and when the switch is controlled into the open state, an AD converter converts the output signal of the amplifier to a digital signal.
摘要翻译： 放大器，用于放大从隔离变压器的次级侧输出的脉冲状信号，连接到放大器的输入和输出端的负反馈环路的电容器，以及用于将FET控制为闭合状态的定时控制电路， 然后将开关控制到关闭状态，之后在与FET同时或在FET之前控制开关处于断开状态，并且当开关控制到开启状态时，AD转换器将输出 放大器的信号到数字信号。
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公开(公告)号：US20080122587A1
公开(公告)日：2008-05-29
申请号：US11792057
申请日：2005-04-14
IPC分类号： G05B11/00
CPC分类号： H04B3/56 , H04B2203/5483
摘要： Provided is a modem apparatus of power line communication using a power line as a transmission path. The modem apparatus includes: an amplifier for amplifying communication signals and outputting a differential signal obtained from a pair of output signals having a phase difference of 180 degrees therebetween; a signal transformer for applying the amplified communication signals to the power lines; and a balance circuit connected at the primary side of the signal transformer, for enhancing circuit balancing. The balance circuit is constituted by a variable element capable of changing an element value, and there is provided a common mode detecting circuit that detects a common mode current flowing through the secondary side of the signal transformer and that changes the element value of the variable element of the balance circuit such that the detected common mode current becomes small.
摘要翻译： 提供了使用电力线作为传输路径的电力线通信的调制解调器装置。 调制解调器装置包括：放大器，用于放大通信信号并输出从具有180度相位差的一对输出信号获得的差分信号; 用于将放大的通信信号施加到电力线的信号变换器; 以及连接在信号变压器初级侧的平衡电路，用于增强电路平衡。 平衡电路由能够改变元件值的可变元件构成，并且提供一种共模检测电路，其检测流过信号变压器的次级侧的共模电流，并且改变可变元件的元件值 使得检测到的共模电流变小。
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公开(公告)号：US07990302B2
公开(公告)日：2011-08-02
申请号：US12595963
申请日：2008-05-09
申请人： Seiichi Saito , Yoshihiro Akeboshi
发明人： Seiichi Saito , Yoshihiro Akeboshi
IPC分类号： H03M1/12
CPC分类号： H03M1/1245 , H03K17/005 , H03K17/161 , H03K17/691 , H03M1/0827 , H03M1/1215
摘要： An amplifier for amplifying a pulse-like signal output from a secondary side of an isolating transformer, a capacitor connected to a negative feedback loop across the input and output of the amplifier, and a timing control circuit for controlling an FET into a closed state, then controlling a switch into a closed state, and after that controlling the switch into an open state at timing simultaneously with the FET or earlier than the FET are provided, and when the switch is controlled into the open state, an AD converter converts the output signal of the amplifier to a digital signal.
摘要翻译： 放大器，用于放大从隔离变压器的次级侧输出的脉冲状信号，连接到放大器的输入和输出端的负反馈环路的电容器，以及用于将FET控制为闭合状态的定时控制电路， 然后将开关控制到关闭状态，之后在与FET同时或在FET之前控制开关处于断开状态，并且当开关控制到开启状态时，AD转换器将输出 放大器的信号到数字信号。
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