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1. 发明专利

JPS5769405A Solenoid valve driver 失效
标题翻译：电磁阀驱动
公开(公告)号：JPS5769405A
公开(公告)日：1982-04-28
申请号：JP14462680
申请日：1980-10-16
申请人： Nippon Denso Co Ltd
发明人： YAKURA TOSHIAKI , YOSHIDA SEIETSU
IPC分类号： F16K31/06 , G05B11/26 , H01H47/32
CPC分类号： H01H47/325
摘要： PURPOSE:To enable a small-capacity switching element to be used by increasing a current flowing through the coil of a solenoid valve by decreasing the resistance value of a resistor for current detection. CONSTITUTION:A comparator 12 compares the output (b) of an integrator 25 with the output (c) of an oscillator 20 and, when the output of the integrator is greater, outputs a high-level signal. Therefore, when an amplifier output voltage (f) corresponding to a current flowing through a coil 14 is lower than, for example, a control input voltage (a), the integral output (b) of the integrator 25 rises on the average and the conduction time of a transistor 17, therefore, increases, increasing the current flowing through the coil 14. Thus, the current is supplied to the coil 14 in proportion to the control input voltage (a).
摘要翻译：目的：通过降低电流检测电阻的电阻值，可以增加流过电磁阀的线圈的电流来使能小容量的开关元件。构成：比较器12将积分器25的输出（b）与振荡器20的输出（c）进行比较，并且当积分器的输出较大时，输出高电平信号。因此，当与流过线圈14的电流对应的放大器输出电压（f）低于例如控制输入电压（a）时，积分器25的积分输出（b）平均上升，因此，晶体管17的导通时间增加，增加流过线圈14的电流。因此，与控制输入电压（a）成比例地将电流提供给线圈14。

2. 发明专利

JPS61133403A Driver of electromagnetically operating device 失效
标题翻译：电磁操作装置的驱动
公开(公告)号：JPS61133403A
公开(公告)日：1986-06-20
申请号：JP25635284
申请日：1984-12-03
申请人： Nippon Denso Co Ltd
发明人： YAKURA TOSHIAKI
IPC分类号： G05B11/26 , G05B11/28
CPC分类号： G05B11/28
摘要： PURPOSE:To simplify the driving circuit by outputting an object duty voltage at which a solenoid is driven from a microcomputer and detecting the difference between its object value and an actual current of a linear solenoid at each period. CONSTITUTION:A CPU 1 outputs an analog object corresponding to a supplied current value from a port P2 to a apply a current to an electromagnetically operated device 5. A periodic pulse driving the electromagnetically operated device is outputted from a port P1 at the same time and resistors 2, 3 and a transistor 4 apply on/off drive to the electromagnetically operated device 5 at a prescribed period. The difference between the object outputted from the port P2 of the CPU 1 and a current fed actually to the electromagnetically operated device 5 detected as an output of an operational amplifier 8 is integrated by an integration device 11 consisting of an integration capacitor 12 and a resistor 13. The polarity across the integration capacitor 12 is detected by a comparator 14 and the mean value of the on/off current of the electromagnetically operated device 5 is kept to the object value by operating the comparator 14 so that its output is always inverted at the end point of time of one cycle.
摘要翻译：目的：通过输出从微型计算机驱动螺线管的目标工作电压，并且在每个周期检测其对象值和线性螺线管的实际电流之间的差异来简化驱动电路。构成：CPU1从端口P2输出与提供的电流值相对应的模拟对象，以将电流施加到电磁操作装置5.驱动电磁操作装置的周期脉冲同时从端口P1输出，电阻器2,3和晶体管4以规定的周期对电磁操作装置5进行开/关驱动。从CPU 1的端口P2输出的对象与被实际作为运算放大器8的输出检测到的电磁操作装置5的电流之间的差异由积分电容器12和电阻器积分电容器12的极性由比较器14检测，并且通过操作比较器14使电磁操作装置5的导通/截止电流的平均值保持为目标值，使得其输出总是在一个周期的终点。

3. 发明专利

JPS57121703A Driving circuit of electromagnetic operating device 失效
标题翻译：电磁操作装置的驱动电路
公开(公告)号：JPS57121703A
公开(公告)日：1982-07-29
申请号：JP816481
申请日：1981-01-22
申请人： Nippon Denso Co Ltd
发明人： YAKURA TOSHIAKI , SATOYAMA KENICHIROU , MORISADA KAZUTOSHI , YAMAMOTO RIYOUICHI , YOSHIDA SEIETSU
IPC分类号： G05B11/26 , F02D41/20 , G05B11/28 , H01H47/32
CPC分类号： G05B11/28 , F02D41/20 , F02D2041/2017 , F02D2041/2034 , F02D2041/2058 , H01H47/325
摘要： PURPOSE: To detect a surge current with high accuracy, by separately providing a surge current detecting resistance.
CONSTITUTION: When voltage Vd of an output terminal (d) of a comparator 2 is in a high level, a Tr7 conducts, a current is supplied to a coil 4 of a solenoid valve, voltage Ve appears in an terminal (e) of a driving current detecting resistance 6, and voltage Vf is obtained through an operational amplifier 18. When voltage Va of a control input terminal (a) has been varied, an integrator 15 integrates in the ratio corresponding to a deviation of this voltage and Vf, and outputs voltage Vb to an output terminal (b). On the other hand, an output Vc from a triangular wave oscillator 10 is compared with Vb, and in case when Vb is larger, the Tr7 is turned on. On the contrary, in case when Vc is larger, a low level signal is outputted and the Tr7 is turned off. In this case, a surge current generated in the coil 4 of the solenoid valve flows through a surge current detecting resistance 31 and a diode 16, and voltage Vg generated in the resistance 31 in that case is inputted to the amplifier 18 through a voltage divider.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过单独提供浪涌电流检测电阻，以高精度检测浪涌电流。构成：当比较器2的输出端（d）的电压Vd为高电平时，Tr7导通，向电磁阀的线圈4供给电流，电压Ve出现在电磁阀的端子（e）驱动电流检测电阻6，并且通过运算放大器18获得电压Vf。当控制输入端子（a）的电压Va已经变化时，积分器15以对应于该电压和Vf的偏差的比率积分，并且将输出电压Vb输出到输出端子（b）。另一方面，将来自三角波振荡器10的输出Vc与Vb进行比较，并且在Vb较大的情况下，Tr7导通。相反，当Vc较大时，输出低电平信号，并关闭Tr7。在这种情况下，在电磁阀的线圈4中产生的浪涌电流流过浪涌电流检测电阻31和二极管16，在这种情况下，在电阻31中产生的电压Vg通过分压器。

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