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1. 发明授权

US5574357A Switching power supply 失效
标题翻译：开关电源
公开(公告)号：US5574357A
公开(公告)日：1996-11-12
申请号：US337882
申请日：1994-11-14
申请人： Tetsushi Otake , Noriyuki Yoshizawa
发明人： Tetsushi Otake , Noriyuki Yoshizawa
IPC分类号： G05F1/565 , H02M3/158 , H02M7/217 , G05F1/10 , G05F1/613 , G05F1/652
CPC分类号： G05F1/565 , H02M3/1588 , H02M7/217 , Y02B70/1466
摘要： A switching power supply with a high power-conversion-efficiency is obtained by further reducing a loss occurring in a transistor rectifying element. A driving transistor Q3 is arranged between a base of a transistor Q2 as the rectifying element and the ground. A driving signal is inputted from a connection point of the transistor Q2 and a choke coil L1 generating a flyback voltage to the base of the driving transistor Q3, and an ON ad OFF operation of the transistor Q2 is caused to synchronize with an ON ad OFF operation of the switching transistor Q1, thereby preventing a leakage of the current in direction of the base from the collector of the transistor Q2 when it turns off, reducing the loss of the transistor rectifying element and then, improving the power conversion efficiency of the switching power supply.
摘要翻译：通过进一步减少在晶体管整流元件中发生的损耗，获得具有高功率转换效率的开关电源。驱动晶体管Q3配置在作为整流元件的晶体管Q2的基极与地之间。驱动信号从晶体管Q2的连接点和产生回扫电压的扼流线圈L1输入到驱动晶体管Q3的基极，并且使晶体管Q2的导通截止操作与ON ad OFF同步开关晶体管Q1的工作，从而防止当晶体管Q2的截止时基极的方向从晶体管Q2的集电极泄漏，减少了晶体管整流元件的损耗，然后提高了开关晶体管Q1的功率转换效率电源。

2. 发明申请

US20090059634A1 Switching power supply 审中-公开
标题翻译：开关电源
公开(公告)号：US20090059634A1
公开(公告)日：2009-03-05
申请号：US12229301
申请日：2008-08-21
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： H02M7/5387
CPC分类号： H02M7/538 , H02M2007/4815 , Y02B70/1441
摘要： To provide a half-bridge switching power supply using a series resonance that can realize both of a smaller size and higher reliability of a device.In a half-bridge switching power supply including two switching elements and an LC resonant circuit including an inductor and capacitors for the series resonance, two switching elements Q1 and Q2 constituting the half bridge, a series-resonant inductor Lp, and two capacitors Co1 and Co2 for a series-resonant capacitor are used.
摘要翻译：提供使用串联谐振的半桥开关电源，该串联谐振能够实现装置的较小的尺寸和更高的可靠性。在包括两个开关元件的半桥开关电源和包括用于串联谐振的电感器和电容器的LC谐振电路中，构成半桥的两个开关元件Q1和Q2，串联谐振电感器Lp和两个电容器Co1和使用串联谐振电容器的Co2。

3. 发明授权

US06157550A Switching power supply circuit 失效
标题翻译：开关电源电路
公开(公告)号：US06157550A
公开(公告)日：2000-12-05
申请号：US515726
申请日：2000-02-29
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： H02M3/28 , H02M3/335
CPC分类号： H02M3/33561
摘要： A switching power supply circuit arranged such that stability of each output voltage is enhanced and the device is kept from being large-sized. Secondary winding N2 of transformer T1 is grounded at one end through diode D1: the other end of the secondary winding N2 is connected to first output terminal 2; and tap CT thereof is coupled to second output terminal 3 through diode D2; and capacitors C2 and C3 are connected between the first output terminal 2 and ground and between the second output terminal and ground respectively. In addition to being arranged as above, the present switching power supply circuit is further arranged such that first output voltage V.sub.01L is obtained from feedback voltage generated at the whole of the secondary winding N2, while second output voltage V.sub.02H is obtained from combination of induced voltage generated at winding section n21 defined through division by the tap CT of the secondary winding N2 and the first output voltage V.sub.01L.
摘要翻译：一种开关电源电路，其布置成使得每个输出电压的稳定性得到提高并且该装置不被大尺寸。变压器T1的二次绕组N2在一端通过二极管D1接地：次级绕组N2的另一端连接到第一输出端子2; 并且其抽头CT通过二极管D2耦合到第二输出端3; 并且电容器C2和C3分别连接在第一输出端子2和地之间以及第二输出端子和地之间。除了如上所述的布置，本开关电源电路还被布置成使得从在整个次级绕组N2处产生的反馈电压获得第一输出电压V01L，而从感应电压的组合获得第二输出电压V02H 在通过由次级绕组N2的抽头CT和第一输出电压V01L分频而限定的绕组段n21处产生。

4. 发明授权

US4819144A Switching power supply circuit with stored charge removal switch 失效
标题翻译：开关电源电路与存储的电荷去除开关
公开(公告)号：US4819144A
公开(公告)日：1989-04-04
申请号：US224583
申请日：1988-07-26
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： H02M3/28 , H02M3/335
CPC分类号： H02M3/33507
摘要： A switching power supply circuit comprising a main switching element, and a second switching element which is on-off driven by the output of the main switching element. The design is made such that when the main switching element is turned on, the second switching element is turned off, while when the main switching element is turned off, the second switching element is turned on, and unwanted charges stored at the main switching element can be discharged through the second switching element when the main switching element is turned off.
摘要翻译：一种开关电源电路，包括主开关元件和由主开关元件的输出驱动的第二开关元件。进行这样的设计：当主开关元件导通时，第二开关元件被断开，而当主开关元件断开时，第二开关元件导通，并且存储在主开关元件当主开关元件断开时，可以通过第二开关元件放电。

5. 发明授权

US07235899B2 Switching constant-current power supply system 失效
标题翻译：开关恒流供电系统
公开(公告)号：US07235899B2
公开(公告)日：2007-06-26
申请号：US10791921
申请日：2004-03-03
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： H02J1/00 , H02J3/00
CPC分类号： H05B33/0815 , H02J1/04 , H02M1/36 , H02M3/3374 , H02M2001/0019 , Y10T307/707
摘要： Disclosed is a switching constant-current power supply system, comprising a feedback circuit 7 provided between a detector circuit 5 for generating a first feedback signal in proportion to a current flowing in a load 6, and a control circuit 4 for driving a first power converter circuit 3 which is provided on the input side of a second power converter circuit 10 to stabilize the load current. The feedback circuit 7 includes a signal hold section 8 for generating a second feedback signal. The feedback circuit 7 is operable to supply the first feedback signal to the control circuit 4 in a current supply period, and to supply the second feedback signal to the control circuit 4 in a current cutoff period. The second feedback signal has a signal value approximately equal to that of the first feedback signal appearing in the current supply period. The switching constant-current power supply system can stabilize the load current even under the condition that the load is repeatedly turned on/off.
摘要翻译：公开了一种开关恒流电源系统，包括设置在检测电路5之间的反馈电路7，用于产生与在负载6中流动的电流成比例的第一反馈信号;以及控制电路4，用于驱动第一电力转换器电路3，其设置在第二功率转换器电路10的输入侧，以稳定负载电流。反馈电路7包括用于产生第二反馈信号的信号保持部分8。反馈电路7可操作以在电流供应周期中将第一反馈信号提供给控制电路4，并且在当前截止周期内将第二反馈信号提供给控制电路4。第二反馈信号具有与当前电源周期中出现的第一反馈信号的信号值近似相等的信号值。即使在反复打开/关闭负载的条件下，开关恒流电源系统也能稳定负载电流。

6. 发明授权

US07034607B2 Switching constant-current power device 失效
标题翻译：开关恒流功率器件
公开(公告)号：US07034607B2
公开(公告)日：2006-04-25
申请号：US10831588
申请日：2004-04-23
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： G05F1/565
CPC分类号： H05B33/0815 , H02M3/156 , H02M2001/0032 , Y02B70/16
摘要： A switching constant-current power device can stabilize current flowing to a load (e.g. a display device comprising an LED, or the like) even when the current is repeatedly interrupted. A voltage current detector is connected to the output side of a power converter and creates a voltage signal in accordance with the output voltage thereof; and a feedback circuit is provided between a controller for driving the power converter and a current detector, which generates a first feedback signal in accordance with the load current. The feedback circuit comprises a signal holding unit, which outputs a second feedback signal that was created by consulting the voltage signal at a given time, the feedback circuit supplying the first feedback signal, output by the current detector, to the controller when load current is flowing, and supplying the second feedback signal, output by the signal holding unit, to the controller when load current is not flowing.
摘要翻译：即使当电流被重复中断时，开关恒流功率器件可以稳定流向负载的电流（例如，包括LED的显示装置等）。电压电流检测器连接到功率转换器的输出侧，并根据其输出电压产生电压信号; 并且在用于驱动功率转换器的控制器和根据负载电流产生第一反馈信号的电流检测器之间提供反馈电路。反馈电路包括信号保持单元，其输出通过在给定时间咨询电压信号而产生的第二反馈信号，当负载电流为负载电流时，将由电流检测器输出的第一反馈信号提供给控制器的反馈电路并且当负载电流不流动时，将由信号保持单元输出的第二反馈信号提供给控制器。

7. 发明授权

US07064943B2 Boost-type switching power device 有权
公开(公告)号：US07064943B2
公开(公告)日：2006-06-20
申请号：US10436386
申请日：2003-05-12
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： H02H7/10
CPC分类号： H02M3/1563 , H02M1/32
摘要： A boost-type switching power device which obtains a dc output by connecting a rectifying diode to the output side of an inductance element, connected in series to a main switching element, the device including: a control circuit which controls the operation of the main switching element by using a feedback signal in accordance with the dc output; and a constant-current circuit comprising a plurality of active elements, which are provided between the the rectifying diode and the output terminal; and wherein, when there is an overload on the output side, the operation of the active elements comprising the constant-current circuit controls the control circuit, switching the main switching element off and thereby stopping the boost function, and, in addition, the output is controlled by the constant-current circuit.

8. 发明授权

US06909249B2 Switching constant-current power supply 失效
标题翻译：开关恒流电源
公开(公告)号：US06909249B2
公开(公告)日：2005-06-21
申请号：US10732150
申请日：2003-12-09
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： H01L33/00 , H02J1/04 , H02M3/155 , H02M3/156 , H02M3/325 , H05B33/08 , G05F1/00
CPC分类号： H05B33/0815 , H02J1/04 , H02M3/1563 , Y10T307/724 , Y10T307/729
摘要： Disclosed herein is a switching constant-current power supply which comprises: a switching-system power converter for supplying a predetermined current to a load; a current detector for generating a feedback signal in correspondence with the load current; a controller for driving the power converter in correspondence with the feedback signal; and a feedback circuit, which is provided between the current detector and the controller, and comprises a signal holding unit, the feedback circuit supplying either a first feedback signal, output from the current detector, or a second feedback signal, output from the signal holding unit, to the controller; the size of the second feedback signal being approximately equal to the first feedback signal at a given time.
摘要翻译：本文公开了一种开关恒流电源，其包括：用于向负载提供预定电流的开关系统功率转换器; 用于产生与负载电流相对应的反馈信号的电流检测器; 用于与所述反馈信号相对应地驱动所述功率转换器的控制器; 以及反馈电路，其设置在电流检测器和控制器之间，并且包括信号保持单元，反馈电路提供来自电流检测器的第一反馈信号或从第一反馈信号输出的第二反馈信号，单位，控制器; 在给定时间，第二反馈信号的大小近似等于第一反馈信号。

9. 发明授权

US5689178A Self-oscillation type DC-DC converter having a driving transistor connected in parallel to a circuit element for starting a switching element 失效
标题翻译：具有与用于启动开关元件的电路元件并联连接的驱动晶体管的自振荡型DC-DC转换器
公开(公告)号：US5689178A
公开(公告)日：1997-11-18
申请号：US680772
申请日：1996-07-16
申请人： Tetsushi Otake
发明人： Tetsushi Otake
IPC分类号： H02M3/155 , H02M3/156 , G05F1/40 , G05F1/42 , G05F1/607
CPC分类号： H02M3/1563
摘要： The present invention provides a self-oscillation type DC-DC converter that can perform self-oscillating operation without disposing a feedback winding in a choke coil and realizes the high efficiency, small size and low cost by using a MOSFET as a switching element. The self-oscillation type DC-DC converter comprises a switching transistor Q12 being a P-MOSFET; a first PNP type driving transistor Q2, the collector and emitter of which are connected to the gate and source of the switching transistor Q12, respectively and the base of which is connected to the switching transistor Q12 through a feedback circuit 3; and a second NPN type driving transistor Q3, the gate of the switching transistor Q12 being connected to the ground through the collector and emitter of the second driving transistor Q3 and the base of the second driving transistor Q3 being connected to the feedback circuit 3 through a capacitor C4.
摘要翻译：本发明提供了一种自振荡型DC-DC转换器，其可以在不将反馈绕组设置在扼流线圈中的情况下进行自振荡操作，并且通过使用MOSFET作为开关元件来实现高效率，小尺寸和低成本。自振型DC-DC转换器包括：P-MOSFET的开关晶体管Q12; 第一PNP型驱动晶体管Q2，其集电极和发射极分别连接到开关晶体管Q12的栅极和源极，其基极通过反馈电路3连接到开关晶体管Q12; 和第二NPN型驱动晶体管Q3，开关晶体管Q12的栅极通过第二驱动晶体管Q3的集电极和发射极连接到地，并且第二驱动晶体管Q3的基极通过a连接到反馈电路3 电容器C4。

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