-
公开(公告)号：US20100061122A1
公开(公告)日：2010-03-11
申请号：US12544160
申请日：2009-08-19
申请人： Toshikazu OKUBO , Takae Shimada , Hiroyuki Shoji , Junpei Uruno
发明人： Toshikazu OKUBO , Takae Shimada , Hiroyuki Shoji , Junpei Uruno
IPC分类号： H02M3/335
CPC分类号： H02M3/158 , H02M2001/342 , Y02B70/1491
摘要： A small and efficient DC-DC converter is provided. In this DC-DC converter, passive elements such as an inductor and a capacitor can be reduced in size by reducing switching loss by a soft switching technology and increasing the drive frequency of a switching element. The DC-DC converter has a main switching element, a main diode and an auxiliary circuit that discharges the electric charges of the capacitance between the ends of the main switching element. The DC-DC converter includes an auxiliary inductor magnetically coupled with the main inductor, an auxiliary switching element that stores energy in the auxiliary inductor, and an auxiliary diode that discharges energy stored in the auxiliary inductor to the direct-current power source or the output side. The auxiliary inductor is coupled with the main inductor in the direction in which backward voltage is applied to the auxiliary diode when the main inductor discharges energy.
摘要翻译： 提供一个小型高效的DC-DC转换器。 在这种DC-DC转换器中，诸如电感器和电容器的无源元件的尺寸可以通过软开关技术减少开关损耗并增加开关元件的驱动频率来减小。 DC-DC转换器具有主开关元件，主二极管和辅助电路，其对主开关元件的端部之间的电容的电荷进行放电。 DC-DC转换器包括与主电感器磁耦合的辅助电感器，在辅助电感器中存储能量的辅助开关元件和将辅助电感器中存储的能量放电到直流电源或输出端的辅助二极管 侧。 当主电感器放电时，辅助电感器与主电感器耦合到向辅助二极管施加反向电压的方向。
-
公开(公告)号：US08203322B2
公开(公告)日：2012-06-19
申请号：US12544160
申请日：2009-08-19
申请人： Toshikazu Okubo , Takae Shimada , Hiroyuki Shoji , Junpei Uruno
发明人： Toshikazu Okubo , Takae Shimada , Hiroyuki Shoji , Junpei Uruno
IPC分类号： G05F1/40
CPC分类号： H02M3/158 , H02M2001/342 , Y02B70/1491
摘要： A small and efficient DC-DC converter is provided. In this DC-DC converter, passive elements such as an inductor and a capacitor can be reduced in size by reducing switching loss by a soft switching technology and increasing the drive frequency of a switching element. The DC-DC converter has a main switching element, a main diode and an auxiliary circuit that discharges the electric charges of the capacitance between the ends of the main switching element. The DC-DC converter includes an auxiliary inductor magnetically coupled with the main inductor, an auxiliary switching element that stores energy in the auxiliary inductor, and an auxiliary diode that discharges energy stored in the auxiliary inductor to the direct-current power source or the output side. The auxiliary inductor is coupled with the main inductor in the direction in which backward voltage is applied to the auxiliary diode when the main inductor discharges energy.
摘要翻译： 提供一个小型高效的DC-DC转换器。 在这种DC-DC转换器中，诸如电感器和电容器的无源元件的尺寸可以通过软开关技术减少开关损耗并增加开关元件的驱动频率来减小。 DC-DC转换器具有主开关元件，主二极管和辅助电路，其对主开关元件的端部之间的电容的电荷进行放电。 DC-DC转换器包括与主电感器磁耦合的辅助电感器，在辅助电感器中存储能量的辅助开关元件和将辅助电感器中存储的能量放电到直流电源或输出端的辅助二极管 侧。 当主电感器放电时，辅助电感器与主电感器耦合到向辅助二极管施加反向电压的方向。
-
公开(公告)号：US20120275203A1
公开(公告)日：2012-11-01
申请号：US13520716
申请日：2010-01-05
IPC分类号： H02M7/04
CPC分类号： H02M1/4225 , H02M1/34 , H02M3/158 , H02M2001/342 , H02M2001/344 , Y02B70/126 , Y02B70/1491
摘要： To provide an AC-DC converter that is highly efficient in a broad load current range from a light load to a heavy load.An AC-DC converter 1 has a main circuit and a control means 4; the main circuit includes a diode bridge circuit 3, a main inductor L1, a main switching element S1, a main diode D1, an auxiliary inductor L2, an auxiliary switching element S2, an auxiliary diode D2, and a smoothing capacitor C1 connected to a DC load 12. The AC-DC converter 1 supplies electric power from an AC power supply 11 to the DC load 12. In a period during which the instantaneous value of an input current from the AC power supply 11 is smaller than a prescribed value Ith, the AC-DC converter 1 stops the main switching element S1 and performs electricity conversion in hard switching by the operation of the auxiliary switching element S2.
摘要翻译： 提供一种在从轻负载到重负载的宽负载电流范围内高效的AC-DC转换器。 AC-DC转换器1具有主电路和控制装置4; 主电路包括二极管电路3，主电感器L1，主开关元件S1，主二极管D1，辅助电感器L2，辅助开关元件S2，辅助二极管D2和连接到 直流负载12.AC-DC转换器1将电力从交流电源11提供给直流负载12.在来自交流电源11的输入电流的瞬时值小于规定值Ith的期间 AC-DC转换器1停止主开关元件S1，并通过辅助开关元件S2的动作进行硬切换的电力转换。
-
公开(公告)号：US09025345B2
公开(公告)日：2015-05-05
申请号：US13480505
申请日：2012-05-25
申请人： Takae Shimada , Kimiaki Taniguchi , Hiroyuki Shoji
发明人： Takae Shimada , Kimiaki Taniguchi , Hiroyuki Shoji
CPC分类号： H02M1/4258 , Y02B70/126
摘要： A high-efficiency power supply apparatus is provided in light of the reduction of the switching loss. The power supply apparatus connected between the AC power supply and the DC load converts the AC power supplied from the AC power supply to the DC power and supplies it to the DC load. The power supply apparatus comprises the first switching circuit for outputting the switched positive and negative voltages to the primary winding of the transformer, a second switching circuit for supplying the DC power induced in the secondary winding of the transformer and switched to the DC load connected to the second AC terminals, a resonance inductor serial-connected to the primary winding, and a control unit for controlling the switching operations performed by the first and second switching circuits. The control unit substantially short-circuits the second AC terminals by controlling the switching operations performed by the second switching circuit.
摘要翻译： 鉴于开关损耗的降低，提供了高效率的电源装置。 连接在AC电源和DC负载之间的电源装置将从AC电源提供的AC电力转换为DC电力并将其提供给DC负载。 电源装置包括：第一开关电路，用于将开关正电压和负电压输出到变压器的初级绕组;第二开关电路，用于提供在变压器的次级绕组中感应的直流电力，并切换到连接到 第二AC端子，串联连接到初级绕组的谐振电感器，以及用于控制由第一和第二开关电路执行的开关操作的控制单元。 控制单元通过控制由第二开关电路执行的开关操作来使第二AC端子短路。
-
5.发明申请PWM Signal Generating Circuit and Power Supply Apparatus Comprising Such PWM Signal Generating Circuit 有权包括这种PWM信号发生电路的PWM信号发生电路和电源设备公开(公告)号：US20080079407A1
公开(公告)日：2008-04-03
申请号：US11865743
申请日：2007-10-02
IPC分类号： G05F1/40
CPC分类号： H03K7/08
摘要： To provide a power supply apparatus having high control resolution of an output power. A PWM signal generating circuit includes: a non-inverting element 31, and an inverting element 32; and further includes a counter 11 for performing count operation in response to rising of a clock signal, a counter 12 for performing count operation in response to falling of the clock signal, comparison circuits 21, 22, and a multiplexer 20. These circuit elements are controlled by PWM control means 10. As another circuit element, the PWM signal generating circuit includes a logical sum element 33. The PWM signal generating circuit serves to arbitrarily change both period and logic “H” time of a PWM signal to be outputted at a time interval which is one half of the clock period. Thus, there is provided a power supply apparatus in which resolution of a PWM signal has been improved within a broad duty range, and fine control of an output power has been performed within a broad output power range.
摘要翻译： 提供具有输出功率的高控制分辨率的电源装置。 PWM信号发生电路包括：非反相元件31和反相元件32; 并且还包括用于响应于时钟信号的上升执行计数操作的计数器11，用于响应于时钟信号的下降执行计数操作的计数器12，比较电路21,22和多路复用器20.这些电路元件 由PWM控制装置10控制。作为另一个电路元件，PWM信号产生电路包括逻辑和元件33.WPM信号发生电路用于任意地改变要在a输出的PWM信号的周期和逻辑“H”时间 时间间隔是时钟周期的一半。 因此，提供了一种在广泛的占空比范围内改善了PWM信号的分辨率并且在宽输出功率范围内执行输出功率的精细控制的电源装置。
-
公开(公告)号：US08629661B2
公开(公告)日：2014-01-14
申请号：US13344039
申请日：2012-01-05
申请人： Takae Shimada , Kimiaki Taniguchi , Hiroyuki Shoji
发明人： Takae Shimada , Kimiaki Taniguchi , Hiroyuki Shoji
IPC分类号： G05F1/10
CPC分类号： H02M3/33584 , H02M3/33507 , Y10T307/50 , Y10T307/625
摘要： Disclosed is a small-size, high-efficiency, isolated, bidirectional DC-DC converter. The bidirectional DC-DC converter includes a transformer in which windings are magnetically coupled, switching circuits, a diode which is connected in parallel with a switch, smoothing capacitors, and a control section. First and second DC power supplies, which are connected in parallel with the smoothing capacitors, respectively, provide bidirectional electrical power transfer. When electrical power is to be transferred from the first DC power supply to the second DC power supply, the switch is maintained in the ON state. When, on the other hand, electrical power is to be transferred from the second DC power supply to the first DC power supply, the switch is maintained in the OFF state to prevent a reverse electrical power flow from the first DC power supply.
摘要翻译： 公开了一种小尺寸，高效率，隔离的双向DC-DC转换器。 双向DC-DC转换器包括绕组被磁耦合的变压器，开关电路，与开关并联连接的二极管，平滑电容器和控制部分。 与平滑电容器并联连接的第一和第二直流电源分别提供双向电力传输。 当电力从第一直流电源传输到第二直流电源时，开关保持在接通状态。 另一方面，当将电力从第二直流电源传送到第一直流电源时，开关保持在断开状态，以防止来自第一直流电源的反向电力流动。
-
公开(公告)号：US08130515B2
公开(公告)日：2012-03-06
申请号：US13024434
申请日：2011-02-10
CPC分类号： H02M3/33584 , H02M1/32
摘要： A bi-directional DC-DC converter has a transformer for connecting a voltage type full bridge circuit connected to a first power source and a current type switching circuit connected to a second power source. A voltage clamping circuit constructed by switching elements and a clamping capacitor is connected to the current type switching circuit. The converter has a control circuit for cooperatively making switching elements operative so as to control a current flowing in a resonance reactor.
摘要翻译： 双向DC-DC转换器具有用于连接连接到第一电源的电压型全桥电路和连接到第二电源的电流型开关电路的变压器。 由开关元件和钳位电容器构成的钳位电路连接到电流型开关电路。 转换器具有用于协同地使开关元件工作的控制电路，以便控制在共振反应器中流动的电流。
-
8.发明授权PWM signal generating circuit and power supply apparatus comprising such PWM signal generating circuit 有权PWM信号发生电路和包括这种PWM信号发生电路的电源装置公开(公告)号：US07683597B2
公开(公告)日：2010-03-23
申请号：US11865743
申请日：2007-10-02
CPC分类号： H03K7/08
摘要： To provide a power supply apparatus having high control resolution of an output power. A PWM signal generating circuit includes: a non-inverting element 31, and an inverting element 32; and further includes a counter 11 for performing count operation in response to rising of a clock signal, a counter 12 for performing count operation in response to falling of the clock signal, comparison circuits 21, 22, and a multiplexer 20. These circuit elements are controlled by PWM control means 10. As another circuit element, the PWM signal generating circuit includes a logical sum element 33. The PWM signal generating circuit serves to arbitrarily change both period and logic “H” time of a PWM signal to be outputted at a time interval which is one half of the clock period. Thus, there is provided a power supply apparatus in which resolution of a PWM signal has been improved within a broad duty range, and fine control of an output power has been performed within a broad output power range.
摘要翻译： 提供具有输出功率的高控制分辨率的电源装置。 PWM信号发生电路包括：非反相元件31和反相元件32; 并且还包括用于响应于时钟信号的上升执行计数操作的计数器11，用于响应于时钟信号的下降执行计数操作的计数器12，比较电路21,22和多路复用器20.这些电路元件 由PWM控制装置10控制。作为另一个电路元件，PWM信号产生电路包括逻辑和元件33.WPM信号发生电路用于任意地改变要在a输出的PWM信号的周期和逻辑“H”时间 时间间隔是时钟周期的一半。 因此，提供了一种在广泛的占空比范围内改善了PWM信号的分辨率并且在宽输出功率范围内执行输出功率的精细控制的电源装置。
-
公开(公告)号：US07848118B2
公开(公告)日：2010-12-07
申请号：US12193244
申请日：2008-08-18
CPC分类号： H02M3/33584 , H02M1/32
摘要： A bi-directional DC-DC converter has a transformer for connecting a voltage type full bridge circuit connected to a first power source and a current type switching circuit connected to a second power source. A voltage clamping circuit constructed by switching elements and a clamping capacitor is connected to the current type switching circuit. The converter has a control circuit for cooperatively making switching elements operative so as to control a current flowing in a resonance reactor.
摘要翻译： 双向DC-DC转换器具有用于连接连接到第一电源的电压型全桥电路和连接到第二电源的电流型开关电路的变压器。 由开关元件和钳位电容器构成的钳位电路连接到电流型开关电路。 转换器具有用于协同地使开关元件工作的控制电路，以便控制在共振反应器中流动的电流。
-
公开(公告)号：US20090059622A1
公开(公告)日：2009-03-05
申请号：US12193244
申请日：2008-08-18
IPC分类号： H02M3/335
CPC分类号： H02M3/33584 , H02M1/32
摘要： A bi-directional DC-DC converter has a transformer for connecting a voltage type full bridge circuit connected to a first power source and a current type switching circuit connected to a second power source. A voltage clamping circuit constructed by switching elements and a clamping capacitor is connected to the current type switching circuit. The converter has a control circuit for cooperatively making switching elements operative so as to control a current flowing in a resonance reactor.
摘要翻译： 双向DC-DC转换器具有用于连接连接到第一电源的电压型全桥电路和连接到第二电源的电流型开关电路的变压器。 由开关元件和钳位电容器构成的钳位电路连接到电流型开关电路。 转换器具有用于协同地使开关元件工作的控制电路，以便控制在共振反应器中流动的电流。
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.023 秒)