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1. 发明授权

US5151602A Semiconductor relay circuit using photovoltaic diodes 失效
标题翻译：使用光伏二极管的半导体继电器电路
公开(公告)号：US5151602A
公开(公告)日：1992-09-29
申请号：US648862
申请日：1991-01-31
申请人： Yukio Idaka , Shuichiroh Yamaguchi , Hisakazu Miyajima , Takeshi Matsumoto , Yasunori Miyamoto
发明人： Yukio Idaka , Shuichiroh Yamaguchi , Hisakazu Miyajima , Takeshi Matsumoto , Yasunori Miyamoto
IPC分类号： H01L31/173 , H03K17/785
CPC分类号： H03K17/785 , H01L31/173 , Y10S136/293
摘要： A semiconductor relay circuit includes a MOS FET receiving a photovoltaic output generated across a photovoltaic diode array. The photovoltaic diode array is responsive to a light signal from a light-emitting element. A cross gate and source electrodes of a MOS FET is connected a control circuit which is at a high impedance state during the generation of the photovoltaic output but to be at a low impedance state upon disappearance of the output. Additionally, resistors are inserted in series respectively in each of current, one path flowing from the photovoltaic diode array across the gate and source electrodes of the MOS FET and the other path flowing a discharge current from a capacity across the gate and source electrodes of the MOS FET to the control circuit, whereby the setting of rise and fall of circuit output signals can be made easier.

2. 发明授权

US4805006A Light receiving element 失效
标题翻译：光接收元件
公开(公告)号：US4805006A
公开(公告)日：1989-02-14
申请号：US166370
申请日：1988-03-10
申请人： Shuichiroh Yamaguchi , Yukio Idaka , Takeshi Matsumoto , Tatsuhiko Irie
发明人： Shuichiroh Yamaguchi , Yukio Idaka , Takeshi Matsumoto , Tatsuhiko Irie
IPC分类号： H01L27/146 , H01L31/16 , H01L31/167 , H01J40/14 , H01L27/14 , H01L31/00
CPC分类号： H01L27/14643 , H01L31/16 , H01L31/167
摘要： A light receiving element is formed by a plurality of light receiving cells connected in series with one another and arranged for optical coupling to a light source, the cells having respectively a surface area varied depending on light input intensity from the light source. The light receiving cells are thereby made to maintain excellent light receiving efficiency without causing optical loss at any one of them.
摘要翻译：光接收元件由多个彼此串联连接的光接收单元形成，并被布置成用于光耦合到光源，所述单元分别具有根据来自光源的光输入强度而变化的表面积。由此，能够使光接收单元保持良好的光接收效率，而不会在任何一个处造成光损失。

3. 发明授权

US4801822A Semiconductor switching circuit 失效
标题翻译：半导体开关电路
公开(公告)号：US4801822A
公开(公告)日：1989-01-31
申请号：US78791
申请日：1987-07-28
申请人： Yukio Idaka , Shuichiroh Yamaguchi , Takeshi Matsumoto
发明人： Yukio Idaka , Shuichiroh Yamaguchi , Takeshi Matsumoto
IPC分类号： H03K17/687 , H03K17/0412 , H03K17/785 , G02B27/00
CPC分类号： H03K17/785 , H03K17/04123 , Y10T307/773
摘要： A semiconductor switching circuit comprises an output FET receiving a photovoltaic output generated by a diode array responsive to a light signal from a light emitting element, a depression mode driving FET connected at the drain and source to the gate and source of the output FET, and a constant voltage conduction element connected in parallel with a resistor connected across the gate and source of the driving FET. The sensitivity of the circuit is elevated by setting the value of this resistor relatively high, whereas high speed operation can be assured by having discharge current of an accumulated charge across the drain and gate of the output FET bypassed through the resistor.
摘要翻译：半导体开关电路包括响应于来自发光元件的光信号接收由二极管阵列产生的光伏输出的输出FET，在漏极和源极处连接到输出FET的栅极和源极的按压模式驱动FET，以及与驱动FET的栅极和源极连接的电阻并联连接的恒压传导元件。通过将该电阻的值设置得相对较高来提高电路的灵敏度，而通过在输出FET的漏极和栅极之间的累积电荷的放电电流旁路通过电阻可以确保高速运行。

4. 发明授权

US5057694A Optoelectronic relay circuit having charging path formed by a switching transistor and a rectifying diode 失效
标题翻译：具有开关晶体管和恢复二极管形成的充电路径的光电继电器电路
公开(公告)号：US5057694A
公开(公告)日：1991-10-15
申请号：US489016
申请日：1990-03-06
申请人： Yukio Idaka , Shuichiroh Yamaguchi , Takeshi Matsumoto
发明人： Yukio Idaka , Shuichiroh Yamaguchi , Takeshi Matsumoto
IPC分类号： H03K17/785
CPC分类号： H03K17/785 , Y10S136/293
摘要： A semiconductor relay circuit includes an output FET connected to a diode array. The diode array generates a photovoltaic output in response to a light signal from a light emitting element. Across the drain and gate of the FET is a series circuit of a semiconductor device and a rectifier is connected, the switching transistor is being made conductive upon receipt at the diode array of the light signal and forms a charge current path for an accumulated charge across the gate and source of the FET. The rectifier restrains a photocurrent from reversely flowing between the drain and gate of the FET. Turning-on and turning-off operations of the relay circuit can be thereby made both achievable at a higher speed, and the reverse flow of the photocurrent upon the conduction of the output FET can be prevented from occurring.
摘要翻译：半导体继电器电路包括连接到二极管阵列的输出FET。二极管阵列响应于来自发光元件的光信号而产生光伏输出。跨越FET的漏极和栅极是半导体器件的串联电路，并且整流器被连接，开关晶体管在接收到光信号的二极管阵列时被导通，并形成用于累积电荷的充电电流路径 FET的栅极和源极。整流器抑制在FET的漏极和栅极之间反向流动的光电流。因此，能够以更高的速度实现继电器电路的接通和关断操作，并且可以防止在输出FET导通时的光电流的反向流动。

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