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1. 发明公开

US20240313663A1 CONTROLLER AND SELF-OSCILLATION DC-DC CONVERTER INCLUDING THE CONTROLLER 审中-公开
公开(公告)号：US20240313663A1
公开(公告)日：2024-09-19
申请号：US18592534
申请日：2024-03-01
申请人： ABLIC Inc.
发明人： Minoru SUDO
IPC分类号： H02M3/338 , H02M1/088 , H03K17/06 , H03K17/30
CPC分类号： H02M3/3385 , H02M1/088 , H03K17/063 , H03K17/302
摘要： A controller includes: first to third input terminals; connection terminals; an output terminal; a first rectifying element, connected between the first input terminal and the second input terminal with a direction from the second input terminal to the first input terminal as a forward direction; a second rectifying element, connected between a connection point between the first input terminal and the first rectifying element and the output terminal with a direction from the connection point to the output terminal as a forward direction; an FET circuit, including a first depletion type FET and at least one other FET; a resistor, connected to the second input terminal and the third input terminal; and a clamp circuit, clamping a voltage of the third input terminal to a predetermined voltage.

2. 发明公开

US20230188050A1 INTEGRATED CIRCUIT AND POWER SUPPLY CIRCUIT 审中-公开
公开(公告)号：US20230188050A1
公开(公告)日：2023-06-15
申请号：US17972354
申请日：2022-10-24
申请人： FUJI ELECTRIC CO., LTD.
发明人： Shinji MATSUMOTO
IPC分类号： H02M3/338 , H02M3/335
CPC分类号： H02M3/3385 , H02M3/33507 , H02M1/36
摘要： An integrated circuit for a power supply circuit including a transistor configured to control a current flowing through a coil. The integrated circuit is configured to drive the transistor. The integrated circuit includes: a determination circuit configured to determine whether a predetermined time period has elapsed since a power supply voltage of the integrated circuit rises to a first predetermined level; an oscillator circuit configured to output an oscillator signal, which has a first frequency before lapse of the predetermined period, and changes in a range at least from the first frequency to a second frequency higher than the first frequency after the lapse of the predetermined time period; and a driver circuit configured to switch the transistor responsive to the oscillator signal during and after the predetermined time period, the switching causing an on period of the transistor to gradually increase in the predetermined time period.

3. 发明授权

US10491127B2 Power supply control unit and isolation type switching power supply device 有权
公开(公告)号：US10491127B2
公开(公告)日：2019-11-26
申请号：US15704256
申请日：2017-09-14
申请人： Rohm Co., Ltd.
发明人： Hideo Hara , Yohei Akamatsu
IPC分类号： H02M3/335 , H02M1/36 , H02M1/32 , H02M3/338 , H02M3/156 , H02M1/00
CPC分类号： H02M3/33523 , H02M1/32 , H02M1/36 , H02M3/1563 , H02M3/335 , H02M3/3385 , H02M3/33569 , H02M2001/0006 , H02M2001/0009 , H02M2001/0025 , H02M2001/0035
摘要： The power supply control unit includes an on trigger signal generating unit arranged to generate an on trigger signal for turning on the switching element on the basis of a feedback signal of flyback voltage, a first timer arranged to measure a predetermined minimum OFF time, a second timer arranged to measure time based on an ON time, a minimum OFF time setting unit arranged to compare the predetermined minimum OFF time measured by the first timer with the time measured by the second timer so as to set a longer time as a minimum OFF time, and an on timing determining unit arranged to determine timing for turning on the switching element on the basis of the set minimum OFF time and the on trigger signal.

4. 发明授权

US10079550B2 Self-oscillating energy extraction and utilization booster module circuits 有权
公开(公告)号：US10079550B2
公开(公告)日：2018-09-18
申请号：US14636066
申请日：2015-03-02
申请人： Jerry Estrada , Stanley Fong , William Toth
发明人： Jerry Estrada , Stanley Fong , William Toth
IPC分类号： H02M3/338 , H04B5/00
CPC分类号： H02M3/338 , H02J7/0065 , H02M3/3385 , H04B5/00 , H04B5/0012 , H04B5/0037 , H04B5/0075
摘要： A system for extracting energy from an energy storage device configured to supply direct current (DC) energy at a nominal voltage rating comprises a first node dimensioned and arranged to receive direct current energy from the energy storage device. Embodiments include a self-oscillating circuit having primary and secondary windings wound around a ferrite core, wherein a positive terminal of the primary winding is tied to the negative terminal of the secondary winding at the first node, and wherein a positive terminal of the secondary winding is coupled to a second node, the second node being coupled to a load requiring power to be supplied at one of a voltage less than, equal to, or higher than the nominal voltage. Some embodiments further include a transistor having a base resistively coupled to a negative terminal of the primary winding and a collector coupled to the second node.

5. 发明授权

US09306466B2 Power supply apparatus and image forming apparatus 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US09306466B2
公开(公告)日：2016-04-05
申请号：US13957013
申请日：2013-08-01
申请人： CANON KABUSHIKI KAISHA
发明人： Jun Hirabayashi
IPC分类号： H02M1/44 , H02M3/338 , H02M3/335 , H02M1/36 , H02M1/00
CPC分类号： H02M3/3385 , H02M1/36 , H02M1/44 , H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： The power supply apparatus includes a switch element for turning ON and OFF supply of electric power to a primary winding of a transformer; a determining unit connected to an auxiliary winding of the transformer, for determining an ON-time of the switch element; and a switching unit for switching the ON-time determined by the determining unit.
摘要翻译：电源装置包括用于接通和断开向变压器的初级绕组供电的开关元件; 连接到所述变压器的辅助绕组的确定单元，用于确定所述开关元件的接通时间; 以及切换单元，用于切换由确定单元确定的接通时间。

6. 发明授权

US09209674B2 Method and apparatus for transferring electrical power by means of capacitive coupling 有权
标题翻译：通过电容耦合传输电能的方法和装置
公开(公告)号：US09209674B2
公开(公告)日：2015-12-08
申请号：US14389507
申请日：2013-03-19
申请人： Igor Spinella
发明人： Igor Spinella
IPC分类号： H02M3/335 , H02M1/08 , H02M3/00 , H02M3/338 , H02J7/02 , H02M1/00
CPC分类号： H02J7/0052 , H02J7/007 , H02J7/025 , H02J50/12 , H02J50/70 , H02J50/80 , H02M1/08 , H02M3/005 , H02M3/33507 , H02M3/3385 , H02M2001/0048
摘要： A method and an apparatus for transferring electric power to an electrical load (105); the method comprising steps of: converting a direct electric current into an electric tension wave, applying the electric tension wave in inlet to at least a couple of electric capacitors (125, 130); supplying the electrical load (105) with the electric tension in outlet from the capacitors (125, 130).
摘要翻译：一种用于将电力传递到电负载（105）的方法和装置; 该方法包括以下步骤：将直流电转换成电张力波，将入口中的电张力波施加到至少一对电容器（125,130）; 向电负载（105）提供来自电容器（125,130）的出口中的电张力。

7. 发明申请

US20140334193A1 SELF-OSCILLATING LOOP BASED PIEZOELECTRIC POWER CONVERTER 审中-公开
标题翻译：自振动环绕压电功率转换器
公开(公告)号：US20140334193A1
公开(公告)日：2014-11-13
申请号：US14361050
申请日：2012-12-06
申请人： NOLIAC A/S
发明人： Kaspar Sinding Meyer , Michael Andreas Esbern Andersen , Martin Schøler Rødgaard , Thomas Andersen
IPC分类号： H02M3/335 , H02M3/338
CPC分类号： H02M3/33584 , H01L41/044 , H02M3/33592 , H02M3/3385 , H02M7/537 , H02M2001/0058 , Y02B70/1491
摘要： The present invention relates to a piezoelectric power converter comprising an input driver electrically coupled directly to an input or primary electrode of the piezoelectric transformer without any intervening series or parallel inductor. A feedback loop is operatively coupled between an output voltage of the piezoelectric transformer and the input driver to provide a self-oscillation loop around a primary section of the piezoelectric transformer oscillating at an excitation frequency. Electrical characteristics of the feedback loop are configured to set the excitation frequency of the self-oscillation loop within a zero-voltage-switching (ZVS) operation range of the piezoelectric transformer.
摘要翻译：本发明涉及一种压电功率转换器，其包括直接与压电变压器的输入或主电极电耦合的输入驱动器，而没有任何中间串联或并联电感器。反馈回路可操作地耦合在压电变压器的输出电压和输入驱动器之间，以在激励频率下振荡的压电变压器的初级部分周围提供自振荡回路。反馈回路的电气特性被配置为将压电变压器的零电压切换（ZVS）操作范围内的自振荡回路的激励频率设定为。

8. 发明授权

US08885361B2 Low power switch mode power supply 有权
标题翻译：低功率开关电源
公开(公告)号：US08885361B2
公开(公告)日：2014-11-11
申请号：US13372551
申请日：2012-02-14
申请人： Rene Ingemann Pedersen , Jan Knudsen
发明人： Rene Ingemann Pedersen , Jan Knudsen
IPC分类号： H02M3/335 , H02M3/338 , H02M1/00
CPC分类号： H02M3/33553 , H02M3/3385 , H02M2001/0032 , Y02B70/16
摘要： A device and a method for operating a low power switch mode power supply, where DC input power is converted to AC power by an oscillator, which AC power is transformed to an AC voltage and AC current, which output power is converted into DC power, where the DC voltage is used as a feedback signal for controlling the oscillator. It is the objective of the invention to reduce a standby power consumption of power consuming devices. The oscillator comprises a first and a second current loop, which first current loop generates an activation current for the second current loop, where the primary coil of a transformer is part of the second current loop, and where the second loop comprises a current/voltage measuring system and generates increasing current in the second current loop and closes the current flow in the second current loop.
摘要翻译：一种用于操作低功率开关模式电源的装置和方法，其中DC输入功率由振荡器转换为AC电力，该AC功率被转换为AC电压和AC电流，该输出功率被转换为DC电力，其中DC电压用作用于控制振荡器的反馈信号。本发明的目的是降低功耗设备的待机功耗。振荡器包括第一和第二电流回路，该第一电流回路产生用于第二电流回路的激活电流，其中变压器的初级线圈是第二电流回路的一部分，并且其中第二回路包括电流/电压测量系统并在第二电流回路中产生增加的电流并关闭第二电流回路中的电流。

9. 发明申请

US20140043869A1 POWER SUPPLY APPARATUS AND IMAGE FORMING APPARATUS 有权
标题翻译：电源设备和图像形成装置
公开(公告)号：US20140043869A1
公开(公告)日：2014-02-13
申请号：US13957013
申请日：2013-08-01
申请人： Canon Kabushiki Kaisha
发明人： Jun Hirabayashi
IPC分类号： H02M3/335
CPC分类号： H02M3/3385 , H02M1/36 , H02M1/44 , H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： The power supply apparatus includes a switch element for turning ON and OFF supply of electric power to a primary winding of a transformer; a determining unit connected to an auxiliary winding of the transformer, for determining an ON-time of the switch element; and a switching unit for switching the ON-time determined by the determining unit.
摘要翻译：电源装置包括用于接通和断开向变压器的初级绕组供电的开关元件; 连接到所述变压器的辅助绕组的确定单元，用于确定所述开关元件的接通时间; 以及切换单元，用于切换由确定单元确定的接通时间。

10. 发明授权

US08503197B2 Power supply apparatus and image forming apparatus 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US08503197B2
公开(公告)日：2013-08-06
申请号：US12628037
申请日：2009-11-30
申请人： Minoru Hayasaki , Keisuke Samejima
发明人： Minoru Hayasaki , Keisuke Samejima
IPC分类号： H02M3/335
CPC分类号： H02M3/3381 , B41J2/435 , H02M3/3385
摘要： The power supply apparatus for obtaining a direct current from an alternating voltage source includes a first DC/DC converter for outputting a first direct current and a second DC/DC converter for a second direct current lower than the first direct current from the first DC/DC converter, and the output voltage of the first DC/DC converter is changed to a lower direct current and the second DC/DC converter is driven in a continuously-conducting state.
摘要翻译：用于从交流电压源获得直流电的电源装置包括用于输出第一直流电流的第一DC / DC转换器和用于低于第一直流电流的第二直流电流的第二DC / DC转换器， DC转换器，并且第一DC / DC转换器的输出电压变为较低的直流电流，并且第二DC / DC转换器被驱动为连续导通状态。

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