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1. 发明申请

US20220057819A1 VOLTAGE BOOSTER ISOLATION TRANSFORMER SYSTEM AND METHOD OF OPERATING THE SAME 有权
公开(公告)号：US20220057819A1
公开(公告)日：2022-02-24
申请号：US17518978
申请日：2021-11-04
申请人： Hubbell Incorporated
发明人： Steve Liscinsky , Jean-Yves Schneider , Joseph DiMaria
IPC分类号： G05F1/24 , G05F1/14 , H02P13/06
摘要： An isolation transformer boost system. The system includes a power supply and an isolation transformer. The isolation transformer includes a primary winding electrically connected to the power supply, a secondary winding, a first voltage tap, and a second voltage tap. Wherein the isolation transformer is configured to, in response to a command from an electronic processor, disconnect a connection from the second voltage tap and establish a second connection from the first voltage tap, wherein the command is based on an electrical characteristic measurement of the power supply exceeding an upper limit threshold for a predetermined period of time.

2. 发明申请

US20180145593A1 CYCLE-BY-CYCLE PEAK CURRENT LIMITING IN CRRENT MODE BUCK/BOOST CONVERTERS 审中-公开
公开(公告)号：US20180145593A1
公开(公告)日：2018-05-24
申请号：US15822110
申请日：2017-11-24
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Youhao Xi , Eric Wayne Tisinger
IPC分类号： H02M3/158 , H03K5/08 , G06F1/26 , H02M1/32 , H02M3/335 , G05F1/24
CPC分类号： H02M3/1582 , G05F1/24 , G06F1/26 , G06F1/263 , H02M1/32 , H02M3/156 , H02M3/33584 , H02M2001/0009 , H02M2001/0025 , H03K5/086
摘要： An SMPS current mode control loop with an adjusted cycle-by-cycle peak current limit for buck and boost (and bidirectional buck/boost) regulators. An SMPS regulator can include a PWM driver to drive switching control signals with a PWM duty cycle to an output terminal OUT, and a PWM controller to control the PWM duty cycle based on a current mode control loop that includes slope compensation to provide a signal VPK corresponding to a current sense signal from a current sense terminal CS, based on sensed peak current through the energy storage element, superimposed with an injected slope compensation current corresponding to a predefined slope compensation based on PWM duty cycle. Adjusted peak limit circuitry generates a signal VLMT corresponding to an adjusted peak current limit based on a pre-defined peak current limit threshold for the energy storage element, including generating a peak limit adjustment current corresponding to the injected slope compensation current, and combining the peak limit adjustment current with the pre-defined peak current limit threshold so that VLMT is substantially constant.

3. 发明授权

US09800155B2 DC-DC converter 有权
公开(公告)号：US09800155B2
公开(公告)日：2017-10-24
申请号：US15314988
申请日：2015-12-08
申请人： DENSO CORPORATION
发明人： Masanori Onishi
IPC分类号： G05F1/24 , G05F1/573 , G05F1/00 , H02M1/00 , H02M7/00 , H02M3/158 , H02M1/08
CPC分类号： H02M3/158 , H02M1/08 , H02M2001/0009 , H05B33/0818 , Y02B20/346
摘要： A DC-DC converter includes a control unit. When switching from an increasing operation to a first operation, the control unit increases an on time in the increasing switch at a beginning of the first operation longer than an end of the increasing operation. When switching from the first operation to the increasing operation, the control unit decreases the on time in the increasing switch at a beginning of the increasing operation shorter than an end of the first operation. When switching from the second operation to the decreasing operation, the control unit decreases an off time in the decreasing switch at a beginning of the decreasing operation shorter than an end of the second operation. When switching from the decreasing operation to the second operation, the control unit increases the off time in the decreasing switch at a beginning of the second operation longer than an end of the decreasing operation.

4. 发明授权

US09748843B2 DCR inductor current-sensing in four-switch buck-boost converters 有权
公开(公告)号：US09748843B2
公开(公告)日：2017-08-29
申请号：US14677794
申请日：2015-04-02
申请人： Linear Technology Corporation
发明人： Xu Zhang , Jian Li , Zhouyuan Shi , Yi Ding Gu
IPC分类号： G05F1/24 , H02M3/158 , H02M1/00
CPC分类号： H02M3/1582 , H02M2001/0009
摘要： An inductor current-sensing circuit for measuring a current in an inductor includes (a) a first RC network coupled between a first terminal of the inductor and a reference voltage source; and (b) a second RC network coupled between a second terminal of the inductor and the reference voltage source. The first RC network and the second RC network each have a time constant substantially equal to the ratio between the inductance and the DC resistance of the inductor. The inductor which current is being measured may be a primary inductor of a four-switch buck boost converter receiving an input voltage and providing an output voltage.

5. 发明授权

US09525350B2 Cascaded buck boost DC to DC converter and controller for smooth transition between buck mode and boost mode 有权
标题翻译：级联降压升压DC至DC转换器和控制器，可在降压模式和升压模式之间平滑过渡
公开(公告)号：US09525350B2
公开(公告)日：2016-12-20
申请号：US14315381
申请日：2014-06-26
申请人： Texas Instruments Incorporated
发明人： Ajay Karthlk Hari , Takayasu Sato , Neil Jose Gutierrez
IPC分类号： G05F1/24 , H02M3/158 , H02M1/15 , H02M1/00
CPC分类号： H02M3/1582 , H02M1/15 , H02M2001/0025
摘要： Cascaded buck boost DC to DC conversion systems, controllers and methods are presented, in which a buck converter stage is pulse width modulated in a first mode and a boost converter stage is pulse width modulated in a second mode, with the pulse width modulation using a first one of peak current control in valley current control in the first mode, and using the other of peak current control in valley current control in the second mode, and operation is switched between the first and second modes based on an on-time of a low side driver switch of the buck converter stage or the boost converter stage.
摘要翻译：提出了级联降压升压DC到DC转换系统，控制器和方法，其中降压转换器级在第一模式中被脉宽调制，并且升压转换级在第二模式中被脉宽调制，脉冲宽度调制使用在第一模式中的谷值电流控制中的峰值电流控制中的第一个，并且在第二模式中使用谷值电流控制中的另一个峰值电流控制，并且基于第一模式的导通时间在第一和第二模式之间切换操作降压转换器级或升压转换级的低压侧驱动开关。

6. 发明授权

US09350243B2 Power converter with separate buck and boost conversion circuits 有权
标题翻译：具有独立降压和升压转换电路的电源转换器
公开(公告)号：US09350243B2
公开(公告)日：2016-05-24
申请号：US14370591
申请日：2013-01-04
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Zhi Quan Chen , Jian Lin Xu , Hong Bo Wang , Zhen Hua Zhou
IPC分类号： G05F1/24 , H02M3/158
CPC分类号： H02M3/158 , H02H7/1213 , H02M3/1582
摘要： An apparatus (100) includes a buck and boost conversion circuit (110), and a control unit (120, 200) for controlling operations of the buck and boost converter. The buck and boost converter includes a buck conversion circuit having a first set of switches (SW3, SW4), and a boost conversion circuit having a second set of switches (SW5, SW6). The buck conversion circuit and the boost conversion circuit may be controlled independently from each other. The control unit is configured to control delivery of power from the power converter to a load (20) via the buck conversion circuit in a buck conversion mode by controlling switching operations of the first set of switches, and to control the delivery of the power from the power converter to the load via the boost conversion circuit in a boost conversion mode by controlling switching operations of the second set of switches.
摘要翻译：装置（100）包括降压和升压转换电路（110），以及用于控制降压和升压转换器的操作的控制单元（120,200）。降压和升压转换器包括具有第一组开关（SW3，SW4）的降压转换电路和具有第二组开关（SW5，SW6）的升压转换电路。降压转换电路和升压转换电路可以彼此独立地控制。控制单元被配置为通过控制第一组开关的开关操作来控制通过降压转换模式的降压转换电路从功率转换器到负载（20）的输出，并且控制来自通过控制第二组开关的切换操作，通过升压转换电路以升压转换模式将功率转换器加载到负载。

7. 发明授权

US08941315B2 Method and apparatus for synchronous sine wave dimming of luminaries 有权
标题翻译：同步正弦波调光的方法和装置
公开(公告)号：US08941315B2
公开(公告)日：2015-01-27
申请号：US13261575
申请日：2011-07-26
申请人： Jack Ivan Jmaev
发明人： Jack Ivan Jmaev
IPC分类号： H05B37/02 , G05F1/24 , H05B41/38
CPC分类号： G05F1/24 , H05B37/02 , H05B37/029 , H05B41/38 , H05B41/3928 , Y02B20/202
摘要： A luminary dimming system having a three terminal dimming unit. The dimming unit includes a power controller and a receiver and is responsive to dimming directives received by the receiver. The power controller controls a buck switch and a freewheel switch in a manner that allows reduction of alternating current voltages. Such voltage reduction is accomplished in a manner that preserves the waveform of the source voltage and the power factor exhibited by the luminary.
摘要翻译：具有三端调光单元的发光调光系统。调光单元包括功率控制器和接收器，并且响应于由接收器接收的调光指令。功率控制器以允许降低交流电压的方式控制降压开关和续流开关。这样的电压降低以保持源电压的波形和由发光体显示的功率因数的方式来实现。

8. 发明授权

US08648579B2 Supply circuit with ripple compensation 有权
标题翻译：电源电路采用纹波补偿
公开(公告)号：US08648579B2
公开(公告)日：2014-02-11
申请号：US12293411
申请日：2007-03-13
申请人： Franciscus A. C. M. Schoofs
发明人： Franciscus A. C. M. Schoofs
IPC分类号： G05F1/24
CPC分类号： H02M1/15
摘要： A supply circuit (1) comprising an inductor (2) coupled to switching means (7) and comprising a capacitor (4) is provided with an impedance (3) located between the inductor (2) and the capacitor (4), with a current injector (5) and with a feedback loop comprising a converter (6) for controlling the current injector (5) for compensating a ripple in an output voltage across the capacitor (4). The impedance (3) allows injection of a compensating current at a location different from an output location. This increases a number of possible detections of ripples in the output voltage and allows a ripple in an output voltage to be detected even in case of loads introducing much noise across the capacitor (4). The converter (6) detects a detection signal via the impedance (3) by measuring a voltage across the impedance (3) or across a serial circuit comprising the impedance (3) and the capacitor (4). The impedance (3) comprises a resistor or a further inductor.
摘要翻译：包括耦合到开关装置（7）并且包括电容器（4）的电感器（2）的电源电路（1）设置有位于电感器（2）和电容器（4）之间的阻抗（3），其中电流注入器（5）以及包括用于控制电流注入器（5）的转换器（6）的反馈回路，用于补偿电容器（4）两端的输出电压中的纹波。阻抗（3）允许在不同于输出位置的位置处注入补偿电流。这增加了对输出电压中的波纹的可能检测的数量，并且允许即使在负载在电容器（4）上引入很多噪声的情况下也可以检测输出电压中的纹波。转换器（6）通过测量阻抗（3）上的电压或包括阻抗（3）和电容器（4）的串联电路，经由阻抗（3）检测检测信号。阻抗（3）包括电阻器或另外的电感器。

9. 发明授权

US08525495B2 Input current generator for buck-boost circuit control 有权
标题翻译：用于降压 - 升压电路控制的输入电流发生器
公开(公告)号：US08525495B2
公开(公告)日：2013-09-03
申请号：US12477550
申请日：2009-06-03
申请人： Paul Werle , Todd E Kooken
发明人： Paul Werle , Todd E Kooken
IPC分类号： G05F1/24
CPC分类号： H02M1/4208 , H02M3/1582 , H02M2001/0009 , Y02B70/126
摘要： A control circuit for a buck-boost circuit includes an inductor current sensor and an input current generator. The input current generator accepts a signal from the inductor current sensor and outputs a synthesized and integrated signal representing the average input current to the buck-boost circuit. The input current generator averages the inductor current signal or a zero signal based on the state of the buck switch in the buck-boost circuit.
摘要翻译：用于降压 - 升压电路的控制电路包括电感器电流传感器和输入电流发生器。输入电流发生器接收来自电感器电流传感器的信号，并输出表示平均输入电流至降压 - 升压电路的合成和积分信号。输入电流发生器基于降压 - 升压电路中的降压开关的状态来平均电感器电流信号或零信号。

10. 发明申请

US20130181634A1 METHOD AND APPARATUS FOR SYNCHRONOUS SINE WAVE DIMMING OF LUMINARIES 审中-公开
标题翻译：方法和装置用于同步波形的波形调制
公开(公告)号：US20130181634A1
公开(公告)日：2013-07-18
申请号：US13261575
申请日：2011-07-26
申请人： Jack Ivan Jmaev
发明人： Jack Ivan Jmaev
IPC分类号： G05F1/24 , H05B37/02
CPC分类号： G05F1/24 , H05B37/02 , H05B37/029 , H05B41/38 , H05B41/3928 , Y02B20/202
摘要： A luminary dimming system having a three terminal dimming unit. The dimming unit includes a power controller and a receiver and is responsive to dimming directives received by the receiver. The power controller controls a buck switch and a freewheel switch in a manner that allows reduction of alternating current voltages. Such voltage reduction is accomplished in a manner that preserves the waveform of the source voltage and the power factor exhibited by the luminary.
摘要翻译：具有三端调光单元的发光调光系统。调光单元包括功率控制器和接收器，并且响应于由接收器接收的调光指令。功率控制器以允许降低交流电压的方式控制降压开关和续流开关。这样的电压降低以保持源电压的波形和由发光体显示的功率因数的方式来实现。

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