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1.发明授权公开(公告)号：US09647567B2
公开(公告)日：2017-05-09
申请号：US13637636
申请日：2011-03-26
CPC分类号： H02M3/33507 , H01F38/20 , H02M1/083 , H02M3/337 , H02M3/338 , H02M3/3385 , H02M7/5383 , H02M2001/0009 , H03K17/13 , H03K17/133
摘要： A power converter controller and methods for its operation are provided that can control a self-oscillating power converter that uses a Bipolar Junction Transistor (BJT) as a switch by manipulating the current flowing in a control winding. The controller is able to determine the optimum time to remove a short circuit applied to the control winding, as well as being able to determine the optimum time to pass current through the control winding. The controller can further draw power from the power converter using the control winding. The controller is capable of maintaining the midpoint voltage of the power converter in the case that the converter has more than one switch. The controller estimates the output power of the converter without requiring a connection to the secondary side of the converter transformer. The controller further controls entry and exit into a low-power mode in which converter oscillations are suppressed.
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公开(公告)号：US09621060B2
公开(公告)日：2017-04-11
申请号：US14490926
申请日：2014-09-19
发明人： Cheng-Po Hsiao , Chung-Hsin Huang , Ke-Horng Chen , Chun-Chieh Kuo , Shih-Ping Tu , Shao-Wei Chiu
CPC分类号： H02M3/338 , H02M2001/007
摘要： A self-excited power conversion circuit for secondary side control output power includes a comparator unit and a transistor installed directly in a secondary side output module, and the comparator unit is electrically coupled to at least one load, and the transistor is electrically coupled between to a conversion module of the circuit and the load. The comparator unit is provided for adjusting the duty cycle of the transistor after detecting the amount of energy outputted from the conversion module to the load from, so as to adjust the amount of energy actually received by the load to achieve a constant power effect.
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公开(公告)号：US09350250B2
公开(公告)日：2016-05-24
申请号：US14124704
申请日：2011-06-08
申请人： Robert S. Whitehouse
发明人： Robert S. Whitehouse
CPC分类号： H02M3/33507 , H02J3/36 , H02M3/07 , H02M3/3376 , H02M3/338 , H02M7/103 , Y02B70/1433 , Y02E60/60
摘要： A converter, for use in high voltage direct and alternating current power transmission comprises a primary charge transfer converter. The charge transfer converter includes first and second primary terminals for connection to one or more electrical networks. The primary charge transfer converter also includes a plurality of charge transfer elements and a plurality of primary switching elements which are connected in a cascade circuit between the first and second primary terminals. Each charge transfer element includes at least one resonant circuit. The primary switching elements are operable to selectively cause charging and discharging of each resonant circuit to transfer charge between the charge transfer elements and thereby create a voltage difference between the first and second primary terminals.
摘要翻译： 用于高压直流和交流电力传输的A转换器包括主电荷转移转换器。 电荷转移转换器包括用于连接到一个或多个电网络的第一和第二主端子。 主电荷转移转换器还包括多个电荷转移元件和多个初级开关元件，其连接在第一和第二主端子之间的级联电路中。 每个电荷转移元件包括至少一个谐振电路。 主开关元件可操作地选择性地引起每个谐振电路的充电和放电以在电荷转移元件之间传递电荷，从而在第一和第二初级端子之间产生电压差。
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公开(公告)号：US20160134192A1
公开(公告)日：2016-05-12
申请号：US14682829
申请日：2015-04-09
发明人： Ke-You HU
IPC分类号： H02M3/24
CPC分类号： H02M3/338 , H02M1/4258 , Y02B70/126
摘要： A power supply system includes a rectifier circuit, a voltage decreasing circuit, and a feedback circuit. The rectifier circuit receives an AC voltage, and converts the AC voltage to a rectifying DC voltage. The voltage decreasing circuit decreases the rectifying DC voltage to a first DC voltage. The feedback circuit includes a photoelectric coupler, a PWM controller, a voltage regulating tube, and a variable resistor. The photoelectric coupler includes a light emitting unit and a switch unit. The variable resistor detects a change of the first DC voltage, and outputs a regulating signal. The voltage regulating tube adjusts a current flowing through the light emitting unit. The switch unit detects the light from the light emitting unit and turns on. The PWM controller outputs PWM signals to the voltage decreasing circuit. The voltage decreasing circuit adjusts the first DC voltage according to a duty cycle of the PWM signals.
摘要翻译： 电源系统包括整流电路，降压电路和反馈电路。 整流电路接收交流电压，并将交流电压转换为整流直流电压。 电压降低电路将整流的直流电压降低到第一直流电压。 反馈电路包括光电耦合器，PWM控制器，电压调节管和可变电阻器。 光电耦合器包括发光单元和开关单元。 可变电阻器检测第一直流电压的变化，并输出调节信号。 电压调节管调节流过发光单元的电流。 开关单元检测来自发光单元的光并打开。 PWM控制器将PWM信号输出到降压电路。 降压电路根据PWM信号的占空比调整第一直流电压。
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公开(公告)号：US20160006355A1
公开(公告)日：2016-01-07
申请号：US14769960
申请日：2013-02-25
IPC分类号： H02M3/337
摘要： A switched mode drive circuit 10 comprises a first switch 14 having a first terminal 14.1 and a second terminal 14.2, a second switch 16 having a first terminal 16.1 and a second terminal 16.2, an inductive component 20 comprising at least a first winding part 20.1 having a first end 20.1.1 and a second end 20.1.2 and a second winding part 20.2 having a first end 20.2.1 and a second end 20.2.2 and an energy storage device 18 having a first pole 18.1 and a second pole 18.2. The first and second terminals of each of the first and second switches and the first and second ends of each of the first and second winding parts are connected in series over the first and second poles of the energy storage device and the first and second winding parts are configured in one of a common mode and a differential mode.
摘要翻译： 开关模式驱动电路10包括具有第一端子14.1和第二端子14.2的第一开关14，具有第一端子16.1和第二端子16.2的第二开关16，电感元件20至少包括第一绕组部分20.1，第一绕组部分20.1具有 具有第一端20.2.1和第二端20.2.2的第一端20.1.1和第二端20.1.2和第二绕组部20.2以及具有第一极18.1和第二极18.2的能量存储装置18。 第一和第二开关中的每一个的第一和第二端子以及第一和第二绕组部件中的每一个的第一和第二端部串联连接在能量存储装置的第一和第二极上，并且第一和第二绕组部分 被配置为共模和差分模式之一。
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公开(公告)号：US20150333628A1
公开(公告)日：2015-11-19
申请号：US14810385
申请日：2015-07-27
申请人： Intel Corporation
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M1/08 , H02M3/1588 , H02M3/338 , Y02B70/1466
摘要： Described is an apparatus which comprises: a low-side switch coupled to an output node for providing regulated voltage supply; and a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage. Described is also a voltage regulator which comprises: a signal generator to generate a pulse-width modulated (PWM) signal; a bridge having a low-side switch coupled to an output node for providing regulated voltage supply according to the PWM signal; a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage; and a bridge controller to provide control signals to the first driver. The voltage regulator may operate without diode clamps and its operation is self-timed. The voltage regulator also provides tolerance against process variation.
摘要翻译： 描述了一种装置，其包括：耦合到输出节点的低侧开关，用于提供稳压电压; 以及第一驱动器，其可操作以在所述输出节点上升到高于第一晶体管阈值电压时使所述低侧开关断开。 还描述了一种电压调节器，其包括：产生脉冲宽度调制（PWM）信号的信号发生器; 具有耦合到输出节点的低侧开关的桥，用于根据所述PWM信号提供稳压电源; 第一驱动器，其可操作以在所述输出节点上升到高于第一晶体管阈值电压时使所述低侧开关断开; 以及桥控制器，用于向第一驱动器提供控制信号。 电压调节器可以在没有二极管钳位的情况下工作，并且其操作是自定时的。 电压调节器还提供了过程变化的公差。
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7.发明授权Bridge driver for a switching voltage regulator which is operable to soft-switch and hard-switch 有权用于开关电压调节器的桥式驱动器，可用于软开关和硬开关公开(公告)号：US09154026B2
公开(公告)日：2015-10-06
申请号：US13534780
申请日：2012-06-27
CPC分类号： H02M3/158 , H02M1/08 , H02M3/1588 , H02M3/338 , Y02B70/1466
摘要： Described is an apparatus which comprises: a low-side switch coupled to an output node for providing regulated voltage supply; and a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage. Described is also a voltage regulator which comprises: a signal generator to generate a pulse-width modulated (PWM) signal; a bridge having a low-side switch coupled to an output node for providing regulated voltage supply according to the PWM signal; a first driver operable to cause the low-side switch to turn off when the output node rises above a first transistor threshold voltage; and a bridge controller to provide control signals to the first driver. The voltage regulator may operate without diode clamps and its operation is self-timed. The voltage regulator also provides tolerance against process variation.
摘要翻译： 描述了一种装置，其包括：耦合到输出节点的低侧开关，用于提供稳压电压; 以及第一驱动器，其可操作以在所述输出节点上升到高于第一晶体管阈值电压时使所述低侧开关断开。 还描述了一种电压调节器，其包括：产生脉冲宽度调制（PWM）信号的信号发生器; 具有耦合到输出节点的低侧开关的桥，用于根据所述PWM信号提供稳压电源; 第一驱动器，其可操作以在所述输出节点上升到高于第一晶体管阈值电压时使所述低侧开关断开; 以及桥控制器，用于向第一驱动器提供控制信号。 电压调节器可以在没有二极管钳位的情况下工作，并且其操作是自定时的。 电压调节器还提供了过程变化的公差。
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8.发明授权Control circuit of LLC resonant converter and LLC resonant converter using the same 失效LLC谐振转换器和LLC谐振转换器的控制电路使用相同的公开(公告)号：US08717784B2
公开(公告)日：2014-05-06
申请号：US13309310
申请日：2011-12-01
申请人： Sang Gab Park , Nam Jin Park , Han Hee Lee , Hyo Joong An , Gyu Min Park , Heung Gyoon Choi
发明人： Sang Gab Park , Nam Jin Park , Han Hee Lee , Hyo Joong An , Gyu Min Park , Heung Gyoon Choi
IPC分类号： H02M3/335
CPC分类号： H02M3/338 , H02M2001/0022 , Y02B70/1433
摘要： The present invention provides a control circuit of an LLC resonant converter including a minimum switching frequency variable circuit of varying a minimum switching frequency corresponding to an AC input voltage of the LLC resonant converter; and a first pulse signal generating unit and a second pulse signal generating unit to generate a first pulse signal and a second pulse signal based on a switching frequency limited by the minimum switching frequency variable circuit.
摘要翻译： 本发明提供了一种LLC谐振变换器的控制电路，包括：一个最小开关频率可变电路，该最小开关频率可变电路改变对应于LLC谐振变换器的AC输入电压的最小开关频率; 以及第一脉冲信号产生单元和第二脉冲信号产生单元，用于基于由最小开关频率可变电路限制的开关频率来产生第一脉冲信号和第二脉冲信号。
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公开(公告)号：US20130301306A1
公开(公告)日：2013-11-14
申请号：US13941765
申请日：2013-07-15
发明人： Tatsuya HOSOTANI
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/07 , H02M3/33576 , H02M3/338 , H02M2001/0058 , Y02B70/1491
摘要： In a switching power supply device with reduced size and increased power conversion efficiency, a secondary-side rectifier circuit includes an adder-rectifier circuit that stores a voltage generated in a secondary winding in a capacitor as electrostatic energy in an on period of one of a high-side and low-side switching circuits or, and adds the voltage in the capacitor and the voltage generated in the secondary winding and outputs the sum as a direct-current voltage during in an on period of the other of the high-side and low-side switching circuits. A switching control circuit adjusts an output power to be output from the secondary-side rectifier circuit, by using on-period ratio controller that controls a proportion of periods during which the respective high-side side and low-side switching elements are brought into a conductive state.
摘要翻译： 在具有减小的尺寸和增加的功率转换效率的开关电源装置中，次级侧整流器电路包括加法器 - 整流器电路，其将在次级绕组中产生的电压存储在电容器中作为静电能在一个 高侧和低侧开关电路，或者在电容器中产生的电压和在次级绕组中产生的电压相加，并且在高侧的另一个的导通时段期间输出该和作为直流电压，以及 低端开关电路。 开关控制电路通过使用控制各高侧侧开关元件和低侧开关元件的周期的比例的周期比率控制器来调整从次级侧整流电路输出的输出功率 导电状态。
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公开(公告)号：US08542512B2
公开(公告)日：2013-09-24
申请号：US13244155
申请日：2011-09-23
申请人： Paul Garrity
发明人： Paul Garrity
CPC分类号： H02M3/338 , H02J3/383 , H02M2001/007 , H02S40/32 , H05K3/284 , H05K2201/10166 , H05K2201/10371 , H05K2203/1316 , Y02E10/563 , Y10T29/4913
摘要： The invention relates to improved techniques for manufacturing power conditioning units (inverters) for use with photovoltaic (PV) modules, and to inverters manufactured by these techniques. We describe a solar photovoltaic inverter, comprising: a power conditioning circuit mounted on a circuit board, the power conditioning circuit having a dc power input to receive dc power from one or more photovoltaic panels and an ac power output to deliver ac power to an ac mains power supply; an electrically conductive shield enclosing said circuit board; and a plastic overmould over said conductive shield and said circuit board; wherein said electrically conductive shield has one or more holes to allow said plastic overmould to extend through said shield to cover said circuit board.
摘要翻译： 本发明涉及用于制造用于光伏（PV）模块的功率调节单元（逆变器）的改进技术以及由这些技术制造的逆变器。 我们描述了一种太阳能光伏逆变器，包括：安装在电路板上的功率调节电路，功率调节电路具有直流电源输入以从一个或多个光伏面板接收直流电力和交流功率输出，以将交流电输送到交流 主电源; 封闭所述电路板的导电屏蔽; 以及在所述导电屏蔽和所述电路板上的塑料超模; 其中所述导电屏蔽具有一个或多个孔，以允许所述塑料覆盖模制延伸穿过所述屏蔽以覆盖所述电路板。
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