公开(公告)号：US06515876B2

公开(公告)日：2003-02-04

申请号：US09996835

申请日：2001-11-29

申请人： Kengo Koike ,  Kei Okada

发明人： Kengo Koike ,  Kei Okada

IPC分类号： H02M3335

CPC分类号： H02M3/33523 ,  H02M2001/0032 ,  Y02B70/16

摘要： A transformer has a primary winding connected between a pair of d.c. input terminals via an on-off switch, and a secondary winding connected between a pair of d.c. output terminals via a rectifying and smoothing circuit. The output voltage applied from the rectifying and smoothing circuit to the load is held constant by switching the input voltage through feedback control. The switch is driven in either of two different prescribed modes depending upon whether the converter is under normal or light load. In order to ascertain the load magnitude a flyback period determination circuit is connected to a tertiary winding of the transformer for providing a signal indicative of a flyback period during which a flyback voltage exists across the transformer tertiary after the switch is turned off each time. Each flyback period is compared with two different reference periods of time for hysteretic determination of whether the converter is under normal or light load. Several other embodiments are disclosed.

公开(公告)号：US20050259448A1

公开(公告)日：2005-11-24

申请号：US10525894

申请日：2003-07-29

申请人： Kengo Koike

发明人： Kengo Koike

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H02M2001/0025

摘要： A switching power source comprises a current comparator 27 for comparing a voltage level of signals acquired by a current detector 9 with a reference voltage level VDT to produce detection signals VCP of first or second level L or H; an edge detector 28a for sensing an edge of drive singal VG supplied to a gate terminal of MOS-FET 3 during the period of transition from turning on to off of MOS-FET 3; and a decision means 28b for receiving a current detection signal VCP from current comparator 27 to produce an output signal VLD when edge detector 28a catches an edge of drive signal VG; wherein decision means 28b produces different output signals VLD of respectively first and second voltage levels L and H under the light and heavy load conditions to precisely and certainly detect on the primary side of transformer 2 the load condition on the secondary side of transformer 2 for improvement in conversion efficiency.

摘要翻译： 开关电源包括电流比较器27，用于将由电流检测器9获取的信号的电压电平与参考电压电平V SUB DT进行比较，以产生检测信号V < 第一或第二级L或H; 边缘检测器28a，用于在从导通到MOS-FET 3的截止期间内感测提供给MOS-FET 3的栅极端子的驱动单元V SUB的边沿; 以及当边缘检测器28a捕获驱动信号的边沿时，从当前比较器27接收电流检测信号V CP的产生输出信号V LD LD的确定装置28b V G; 其中决定装置28b在轻负载条件下产生分别的第一和第二电压电平L和H的不同输出信号V LD，以在变压器2的初级侧精确地和可靠地检测负载条件 在变压器2的次级侧，以提高转换效率。

公开(公告)号：US07394670B2

公开(公告)日：2008-07-01

申请号：US11087278

申请日：2005-03-22

申请人： Kengo Koike

发明人： Kengo Koike

IPC分类号： H02M3/335

CPC分类号： H02M1/10 ,  H02M3/33523

摘要： A control circuit 8 of a switching power source comprises a voltage detector 31 for detecting a voltage VDC of a DC power supply 1 to produce a detection voltage VDT; a comparator 41 for producing an output signal VCP when detection voltage VDT from voltage detector 31 exceeds a reference voltage VR2; a bottom voltage detector 51 for detecting a bottom point of voltage VDS across a MOS-FET 3 after energy has been discharged from transformer 2; and a switching controller 61 for selectively turning MOS-FET 3 on depending on existence or absence of the output signal VCP from comparator 41. When the input voltage VDC from DC power supply 1 so rises that detection voltage VDT of voltage detector 31 is above the reference voltage VR2, switching controller 61 serves to late turn MOS-FET 3 on at the time bottom voltage detector 51 detects the second or later bottom point of the voltage VDS across MOS-FET 3, extending the off period of MOS-FET 3 to reduce switching frequency of MOS-FET 3.

摘要翻译： 开关电源的控制电路8包括用于检测直流电源1的电压V DC DC以产生检测电压V DT的电压检测器31; 当来自电压检测器31的检测电压V SUB DT超过参考电压V R2时，用于产生输出信号V CP的比较器41; 一个底部电压检测器51，用于在能量从变压器2放电之后检测MOS-FET 3两端的电压V SUB DS的底点; 以及用于根据存在或不存在来自比较器41的输出信号V CP CP而选择性地转换MOS-FET 3的开关控制器61。 当来自直流电源1的输入电压V SUB DC 升高时，检测电压检测器31的检测电压V SUB高于参考电压V R2， 开关控制器61用于在MOS电场检测器51检测MOS-FET 3两端的电压V SUB DS的第二或更迟的底点之后使MOS-FET3导通，延长断开时段 MOS-FET 3，以降低MOS-FET 3的开关频率。

公开(公告)号：US07035119B2

公开(公告)日：2006-04-25

申请号：US10525894

申请日：2003-07-29

申请人： Kengo Koike

发明人： Kengo Koike

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H02M2001/0025

摘要： A switching power source comprises a current comparator 27 for comparing a voltage level of signals acquired by a current detector 9 with a reference voltage level VDT to produce detection signals VCP of first or second level L or H; an edge detector 28a for sensing an edge of drive signal VG supplied to a gate terminal of MOS-FET 3 during the period of transition from turning on to off of MOS-FET 3; and a decision means 28b for receiving a current detection signal VCP from current comparator 27 to produce an output signal VLD when edge detector 28a catches an edge of drive signal VG; wherein decision means 28b produces different output signals VLD of respectively first and second voltage levels L and H under the light and heavy load conditions to precisely and certainly detect on the primary side of transformer 2 the load condition on the secondary side of transformer 2 for improvement in conversion efficiency.

摘要翻译： 开关电源包括电流比较器27，用于将由电流检测器9获取的信号的电压电平与参考电压电平V SUB DT进行比较，以产生检测信号V < 第一或第二级L或H; 边缘检测器28a，用于在从MOS-FET 3的导通到截止的时段期间感测提供给MOS-FET 3的栅极端的驱动信号V SUB的边缘; 以及当边缘检测器28a捕获驱动信号的边沿时，从当前比较器27接收电流检测信号V CP的产生输出信号V LD LD的确定装置28b V G; 其中决定装置28b在轻重负载条件下产生分别的第一和第二电压电平L和H的不同输出信号V LD，以在变压器2的初级侧精确地和可靠地检测负载条件 在变压器2的次级侧，以提高转换效率。

公开(公告)号：US09350352B2

公开(公告)日：2016-05-24

申请号：US12946247

申请日：2010-11-15

申请人： Kengo Koike

发明人： Kengo Koike

IPC分类号： H03K19/0175 ,  H03K19/0185

CPC分类号： H03K19/018521 ,  H03K19/017509 ,  H03K19/0185 ,  H03K19/018507 ,  H03K19/018514

摘要： A level shift circuit includes a first resistor connected to a level shift power source, a first transistor having a drain connected to a second end of the first resistor and a source to the ground, a second resistor connected to the level shift power source, a second transistor having a drain connected to a second end of the second resistor and a source to the ground, a pulse generator controlling ON/OFF of the first and second transistors according to an input signal, a control part generating a set signal if the first transistor is ON, a reset signal if the second transistor is ON, and no signal if there is no voltage difference between a voltage at the drain of the first transistor and a voltage at the drain of the second transistor, and a flip-flop providing an output signal according to the set and reset signals.

摘要翻译： 电平移位电路包括连接到电平转换电源的第一电阻器，具有连接到第一电阻器的第二端的漏极和到地的源极的第一晶体管，连接到电平转换电源的第二电阻器， 第二晶体管，具有连接到第二电阻器的第二端的漏极和到地的源极;脉冲发生器，其根据输入信号控制第一和第二晶体管的接通/断开;控制部分，如果第一 晶体管导通，如果第二晶体管导通，则复位信号，如果在第一晶体管的漏极处的电压与第二晶体管的漏极之间没有电压差，则没有信号，并且触发器提供 根据设定和复位信号的输出信号。

公开(公告)号：US20050213355A1

公开(公告)日：2005-09-29

申请号：US11087278

申请日：2005-03-22

申请人： Kengo Koike

发明人： Kengo Koike

IPC分类号： H02M3/28 ,  H02M1/10 ,  H02M3/335

CPC分类号： H02M1/10 ,  H02M3/33523

摘要： A control circuit 8 of a switching power source comprises a voltage detector 31 for detecting a voltage VDC of a DC power supply 1 to produce a detection voltage VDT; a comparator 41 for producing an output signal VCP when detection voltage VDT from voltage detector 31 exceeds a reference voltage VR2; a bottom voltage detector 51 for detecting a bottom point of voltage VDS across a MOS-FET 3 after energy has been discharged from transformer 2; and a switching controller 61 for selectively turning MOS-FET 3 on depending on existence or absence of the output signal VCP from comparator 41. When the input voltage VDC from DC power supply 1 so rises that detection voltage VDT of voltage detector 31 is above the reference voltage VR2, switching controller 61 serves to late turn MOS-FET 3 on at the time bottom voltage detector 51 detects the second or later bottom point of the voltage VDS across MOS-FET 3, extending the off period of MOS-FET 3 to reduce switching frequency of MOS-FET 3.

摘要翻译： 开关电源的控制电路8包括用于检测直流电源1的电压V DC DC以产生检测电压V DT的电压检测器31; 当来自电压检测器31的检测电压V SUB DT超过参考电压V R2时，用于产生输出信号V CP的比较器41; 一个底部电压检测器51，用于在能量从变压器2放电之后检测MOS-FET 3两端的电压V SUB DS的底点; 以及用于根据存在或不存在来自比较器41的输出信号V CP CP而选择性地转换MOS-FET 3的开关控制器61。 当来自直流电源1的输入电压V SUB DC 升高时，电压检测器31的检测电压V SUB高于参考电压V R2， 开关控制器61用于在MOS电场检测器51检测MOS-FET 3两端的电压V SUB DS的第二或更迟的底点之后使MOS-FET3导通，延长断开时段 MOS-FET 3，以降低MOS-FET 3的开关频率。

公开(公告)号：US4690934A

公开(公告)日：1987-09-01

申请号：US905133

申请日：1986-09-09

申请人： Hiroshi Yoshida ,  Kenji Konishi ,  Kengo Koike ,  Taizo Nakagawa ,  Shizuo Shimano ,  Seiji Mochizuki

发明人： Hiroshi Yoshida ,  Kenji Konishi ,  Kengo Koike ,  Taizo Nakagawa ,  Shizuo Shimano ,  Seiji Mochizuki

IPC分类号： A01N43/40 ,  C07D213/81 ,  A61K31/44

CPC分类号： C07D213/81 ,  A01N43/40

摘要： A compound of the formula: ##STR1## wherein X is halogen, lower alkoxy, lower alkylthio, nitro or methyl,Y is hydrogen or chloro,R is hydrogen, lower alkyl or allyl,Z is hydrogen, lower alkyl halogen, nitro, methoxy, methylthio, methylsulfonyl, --CF.sub.3, phenyl, phenoxy or lower alkoxycarbonyl andn is integer of 1-3, their use as fungicide or bactericides.

摘要翻译： 下式的化合物：其中X是卤素，低级烷氧基，低级烷硫基，硝基或甲基，Y是氢或氯，R是氢，低级烷基或烯丙基，Z是氢，低级烷基卤素， 硝基，甲氧基，甲硫基，甲基磺酰基，-CF3，苯基，苯氧基或低级烷氧基羰基，n为1-3的整数，它们用作杀真菌剂或杀菌剂。

公开(公告)号：US4500536A

公开(公告)日：1985-02-19

申请号：US471963

申请日：1983-03-03

申请人： Hiroshi Yoshida ,  Kengo Koike ,  Shizuo Shimano ,  Taizo Nakagawa ,  Kaoru Ohmori

发明人： Hiroshi Yoshida ,  Kengo Koike ,  Shizuo Shimano ,  Taizo Nakagawa ,  Kaoru Ohmori

IPC分类号： A01N47/38 ,  C07D249/08 ,  C07D307/52 ,  C07D333/20 ,  C07D409/12 ,  C07D521/00 ,  A01N43/50 ,  A01N43/56 ,  A01N43/64 ,  C07D231/10 ,  C07D233/54

CPC分类号： C07D231/12 ,  A01N47/38 ,  C07D233/56 ,  C07D249/08 ,  C07D307/52 ,  C07D333/20 ,  C07D409/12

摘要： Disclosed herein are novel derivatives of N,N-substituted azolecarboxamide represented by the formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom, methyl group, ethyl group or propyl group; R.sub.2 represents an alkyl group of 1 to 6 carbon atoms; R.sub.3 represents a hydrogen atom or methyl group; A represents a hydrogen atom or methyl group; X and Y represent respectively a carbon atom or a nitrogen atom, provided that when X represents a nitrogen atom, Y represents a nitrogen atom or carbon atom and when X represents a carbon atom, Y represents a nitrogen atom; and Z represents an oxygen atom or sulfur atom, provided that when Z represents a sulfur atom, A represents only a hydrogen atom; and an agricultural or horticultural fungicidal or nematicidal composition containing the novel derivative of the formula (I) as an active ingredient.

摘要翻译： 本文公开了由式（I）表示的N，N-取代的偶氮甲酰胺的新衍生物：其中R 1表示氢原子，甲基，乙基或丙基; R2表示1〜6个碳原子的烷基; R3表示氢原子或甲基; A表示氢原子或甲基; X和Y分别代表碳原子或氮原子，条件是当X表示氮原子时，Y表示氮原子或碳原子，当X表示碳原子时，Y表示氮原子; 并且Z表示氧原子或硫原子，条件是当Z表示硫原子时，A仅表示氢原子; 以及含有式（I）的新型衍生物作为活性成分的农业或园艺杀真菌或杀线虫剂组合物。

公开(公告)号：US06519165B2

公开(公告)日：2003-02-11

申请号：US09996841

申请日：2001-11-29

申请人： Kengo Koike

发明人： Kengo Koike

IPC分类号： H02M3335

CPC分类号： H02M3/33523 ,  H02M2001/0032 ,  Y02B70/16

摘要： A transformer has a primary winding connected between a pair of d.c. input terminals via an on-off switch, and a secondary winding connected between a pair of d.c. output terminals via a rectifying and smoothing circuit. The output voltage applied from the rectifying and smoothing circuit to the load is held constant by switching the input voltage through feedback control. For intermittently operating the switch under light load, a sawtooth generator circuit is provided which provides a sawtooth voltage having a frequency less than that of the on-off operation of the switch. The sawtooth voltage is compared with a voltage indicative of the magnitude of a current flowing through the switch. The result of this comparison is utilized for modifying the delivery of switching pulses to the switch.

公开(公告)号：US4804762A

公开(公告)日：1989-02-14

申请号：US045544

申请日：1987-05-04

申请人： Hiroshi Yoshida ,  Shizuo Shimano ,  Seiji Mochizuki ,  Kengo Koike ,  Taizo Nakagawa ,  Kenji Konishi

发明人： Hiroshi Yoshida ,  Shizuo Shimano ,  Seiji Mochizuki ,  Kengo Koike ,  Taizo Nakagawa ,  Kenji Konishi

IPC分类号： A01N43/40 ,  C07D213/81 ,  C07D405/12 ,  C07D409/12 ,  C07D407/12

CPC分类号： C07D213/81 ,  A01N43/40 ,  C07D405/12 ,  C07D409/12

摘要： Disclosed herein is a compound of the formula: ##STR1## wherein X is halogen, lower alkoxy or lower alkylthio,Y is hydrogen or chloro,R.sub.1 is hydrogen, lower alkyl, cyanomethyl, phenyl or benzyl,R.sub.2 is hydrogen, C.sub.1 .about.C.sub.7 - alkyl, C.sub.3 .about.C.sub.6 - cycloalkyl, lower alkoxy, phenyl, phenoxyphenyl, furyl, thienyl or benzyl andn=1 or 2with a proviso that X and Y are not chloro at the same time, a fungicidal or bactericidal composition containing said compound as an effective component, a method for preventing diseases of agricultural or horticultural plant and a method for manufacturing said compound.