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1. 发明授权

US11689041B2 System and method for detecting electrical connection and disconnection on USB Type-A charging port 有权
公开(公告)号：US11689041B2
公开(公告)日：2023-06-27
申请号：US16898113
申请日：2020-06-10
申请人： SILICONCH SYSTEMS PVT LTD
发明人： Rakesh Kumar Polasa , Satish Anand Verkila , Burle Naga Satyanarayana
IPC分类号： H02J7/00 , H02M3/156 , H02M3/07
CPC分类号： H02J7/00714 , H02J7/0047 , H02M3/07 , H02M3/1563 , H02J2207/30
摘要： Systems and methods for detecting electrical connection and disconnection on an USB Type-A charging port like power adapters, power banks and car chargers having one or more USB Type-A charging port of an USB device. The system includes: a voltage source; a MOSFET SWITCH gate driver, in USB type-A connected state, that operatively couples MOSFET SWITCH with voltage source and VBUS supply of USB type-A port; charge pump; a current sense differential amplifier; and a control unit configured to: monitor VBUS current, and detect potential disconnected state of connected USB type-A port; and monitor VBUS voltage and compare VBUS voltage with predetermined voltage to sense external condition such that VBUS voltage drops because of load capacitance and load current. The control unit is further configured to, when the duty cycle has reached a minimum VBUS current, detect the USB type-A disconnection with a charge pump state.

2. 发明申请

US20180294723A1 Reverse Recovery Charge Elimination in DC/DC Power Converters 审中-公开
公开(公告)号：US20180294723A1
公开(公告)日：2018-10-11
申请号：US15915205
申请日：2018-03-08
申请人： Dialog Semiconductor (UK) Limited
发明人： Francesco Dalena , Alexandre Morello
IPC分类号： H02M3/156
CPC分类号： H02M3/1563 , H02M3/158 , H02M3/1588 , H02M2001/0032 , H02M2001/0051
摘要： A switching mode power converter circuit is disclosed, comprising a first high-side switch and a first low-side switch coupled in series between an input voltage level and a reference voltage level, a second high-side switch and a second low-side switch coupled in series between the input voltage level and the reference voltage level, and a control circuit for controlling switching operation of the first and second high-side switches and the first and second low-side switches. The first high-side switch has a larger on-state resistance than the second high-side switch and the first low-side switch has a larger on-state resistance than the second low-side switch. The control circuit is configured to, during an on-state of the first and second low-side switches, control the second low-side switch to switch to the off-state and control the first high-side switch to switch to the on-state, so that the first high-side switch and the first low-side switch are both in the on-state. The application further relates to a method of operating such switching mode power converter circuit.

3. 发明授权

US09997998B2 Electronic circuit and boost converter 有权
公开(公告)号：US09997998B2
公开(公告)日：2018-06-12
申请号：US15444920
申请日：2017-02-28
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki , Yosuke Toyama
IPC分类号： H02M3/10 , H02M3/04 , H03K5/159 , H03K3/037
CPC分类号： H02M3/04 , H02M3/1563 , H03K3/037 , H03K5/159 , H03K2005/00013
摘要： An electronic circuit according to one embodiment of the present invention includes a first logic circuit, a second logic circuit, first and second capacitors, and a connection circuit. The first logic circuit has a first output terminal from which a first output signal based on a first input signal is output. The second logic circuit outputs a second output signal obtained by inversion of the first output signal is output in a steady state. The first and second capacitors each have one terminal at a first voltage. The connection circuit connects one of the first output terminal and the second output terminal to the first capacitor, and the other to the second capacitor. The connection circuit interchanges connection destinations of the first capacitor and the second capacitor in accordance with a received first connection control signal.

4. 发明申请

US20180097445A1 LOW QUIESCENT CURRENT DC-to-DC CONVERTER 审中-公开
公开(公告)号：US20180097445A1
公开(公告)日：2018-04-05
申请号：US15596762
申请日：2017-05-16
申请人： Cypress Semiconductor Corporation
发明人： Toru MIYAMAE
IPC分类号： H02M3/157
CPC分类号： H02M3/157 , H02M1/08 , H02M3/156 , H02M3/1563 , H02M3/158 , H02M2001/0025 , H02M2001/0035 , Y02B70/16
摘要： Systems and methods for driving a low quiescent current DCDC converter are disclosed. An error threshold compensation circuit of the DCDC converter is configured to detect an output voltage of the DCDC converter, compare the output voltage to a target voltage, and modify a first threshold voltage of the hysteresis control circuit based on the comparison.

5. 发明授权

US09692300B2 Supply regulation circuit with energy efficient digital control 有权
公开(公告)号：US09692300B2
公开(公告)日：2017-06-27
申请号：US14773825
申请日：2013-03-13
申请人： SCHNEIDER ELECTRIC USA, INC.
发明人： Kevin M. Jefferies
IPC分类号： H02M3/158 , H02M3/156
CPC分类号： H02M3/158 , H02M3/1563
摘要： A regulated voltage system with digital control to maintain a regulated voltage supply and protection against overcurrents is disclosed. A regulated supply voltage circuit including a voltage output and a charging capacitor is coupled to a direct current power source. The regulated supply voltage output supplies power to an electrical load. A shunt transistor is coupled between the direct current power source and the regulated supply voltage circuit and ground. A shunt control circuit operates the shunt transistor between an open and closed state. The shunt control circuit includes a cross-coupled bias circuit coupled to a controller. The controller operates the shunt transistor according to a state machine having a first state to close the shunt transistor when the regulated supply voltage exceeds a maximum hysteresis voltage and a second state to open the shunt transistor when the regulated supply voltage is less than a minimum hysteresis voltage.

6. 发明授权

US09608577B2 Radio frequency front end module circuit incorporating an efficient high linearity power amplifier 有权
公开(公告)号：US09608577B2
公开(公告)日：2017-03-28
申请号：US14033960
申请日：2013-09-23
申请人： DSP Group, Ltd.
发明人： Alexander Mostov , Sergey Anderson , Udi Suissa , Ilya Sima , Avi Bauer
IPC分类号： H03F1/56 , H01F38/14 , H03F3/213 , H03F3/195 , H02M3/156 , H02M3/04 , H01F27/28 , H01F27/29 , H01F38/00 , H03F3/19 , H03F3/21 , H03F3/68 , H03F3/193 , H04B1/44 , H01F19/04 , H03F1/02 , H03F3/45 , H01L23/522 , H01L23/64 , H01L23/66 , H02M1/00
CPC分类号： H03F1/565 , H01F19/04 , H01F27/2804 , H01F27/29 , H01F38/00 , H01F38/14 , H01L23/5227 , H01L23/645 , H01L23/66 , H01L2223/6655 , H01L2223/6672 , H01L2924/0002 , H02M3/04 , H02M3/1563 , H02M2001/0012 , H03F1/0227 , H03F1/0261 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/213 , H03F3/45179 , H03F3/68 , H03F2200/102 , H03F2200/105 , H03F2200/387 , H03F2200/451 , H03F2200/534 , H03F2200/537 , H03F2200/541 , H04B1/44 , Y02D70/00 , H01L2924/00
摘要： A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.

7. 发明授权

US09601987B2 Power supply apparatus 有权
公开(公告)号：US09601987B2
公开(公告)日：2017-03-21
申请号：US14535381
申请日：2014-11-07
申请人： DENSO CORPORATION
发明人： Mutsuya Motojima , Takeshi Morinaga
IPC分类号： G05F1/00 , H02M1/32 , H02M3/156 , G01R19/00 , G05F1/575 , G05F1/618
CPC分类号： H02M1/32 , G01R19/00 , G05F1/575 , G05F1/618 , H02M3/1563
摘要： In a power supply apparatus, power is transmitted from its input terminal to its output terminal. The transmitted power is controlled so that an output voltage detected in a predetermined ratio can be equal to a reference voltage. A reduction signal is outputted when the output voltage decreases below a threshold. A presence or absence of an abnormality in a capacitance connected to the output terminal or a load current in a load connected to the output terminal is determined, when the output voltage is equal to the target voltage, by changing at least one of the detection ratio and the reference voltage so that the output voltage can transition from a target voltage higher than the threshold toward a middle voltage lower than the threshold only during a predetermined time period.

8. 发明授权

US09559583B2 Power converter with a wave generator that filters a wave signal to generate an output voltage 有权
标题翻译：具有波发生器的功率转换器，其对波形信号进行滤波以产生输出电压
公开(公告)号：US09559583B2
公开(公告)日：2017-01-31
申请号：US14153405
申请日：2014-01-13
申请人： MediaTek Inc.
发明人： Hung-chih Lin , Hung-I Wang , Hao-Ping Hong , Chien-Wei Kuan , Yung-Chih Yen
IPC分类号： H02M7/539 , H02M3/156
CPC分类号： H02M3/156 , H02M3/1563
摘要： A power converter includes a wave generator, a low pass filter, a first control circuit, and a second control circuit. The wave generator receives an input voltage, and converts the input signal into a wave signal according to a first control signal and a second control signal. The low pass filter filters the wave signal to generate an output voltage. The first control circuit generates the first control signal according to the wave signal and the output voltage. The second control circuit generates the second control signal according to the wave signal and the output voltage.
摘要翻译：功率转换器包括波发生器，低通滤波器，第一控制电路和第二控制电路。波发生器接收输入电压，并根据第一控制信号和第二控制信号将输入信号转换成波信号。低通滤波器对波形信号进行滤波以产生输出电压。第一控制电路根据波信号和输出电压产生第一控制信号。第二控制电路根据波信号和输出电压产生第二控制信号。

9. 发明授权

US09473024B2 Semiconductor integrated circuit power supply control device 有权
标题翻译：半导体集成电路电源控制装置
公开(公告)号：US09473024B2
公开(公告)日：2016-10-18
申请号：US14272069
申请日：2014-05-07
申请人： Kabushiki Kaisha Toshiba
发明人： Takahiro Yamashita
IPC分类号： G05F1/56 , H02M3/156 , H01L27/02 , H01L27/088
CPC分类号： H02M3/1563 , H01L27/0207 , H01L27/088
摘要： A semiconductor integrated circuit device according to an embodiment includes at least one first transistor connected at its source to an input power supply line, connected at its drain to an output power supply line, and connected at its gate to a first control line, at least one second transistor connected at its source to the input power supply line, connected at its drain to the output power supply line, and connected at its gate to a second control line, a first buffer which drives the first control line, a second buffer configured to receive a control signal input via the first control line and drive the second control line, and a plurality of transfer gates provided to divide the first control line into a plurality of pieces, the plurality of transfer gates being capable of connecting pieces obtained by dividing the first control line.
摘要翻译：根据实施例的半导体集成电路器件包括至少一个在其源极处连接到输入电源线的第一晶体管，其输出电源线在其漏极处连接到输出电源线，并且至少在其栅极处连接到第一控制线在其源极处连接到输入电源线的一个第二晶体管，在其漏极处连接到输出电源线，并且在其栅极处连接到第二控制线，驱动第一控制线的第一缓冲器，配置为接收通过第一控制线输入的控制信号并驱动第二控制线;以及多个传输门，用于将第一控制线分成多个片，多个传输门能够通过划分获得的连接件第一条控制线。

10. 发明授权

US09467045B2 SMPS with adaptive COT control and method thereof 有权
标题翻译：具有自适应COT控制的SMPS及其方法
公开(公告)号：US09467045B2
公开(公告)日：2016-10-11
申请号：US14489905
申请日：2014-09-18
申请人： Monolithic Power Systems, Inc.
发明人： John Fogg , Jian Jiang , Junyong Gong
IPC分类号： H02M3/156 , H02M1/00
CPC分类号： H02M3/156 , H02M3/1563 , H02M2001/0022
摘要： A SMPS has a switching circuit and a controller. The switching circuit has an input terminal and an output terminal, and also includes a switch and an inductor, wherein the switching circuit regulates an output voltage at the output terminal based on an input voltage at the input terminal by controlling a switching action of the switch. The controller generates a switching control signal to control the switch, where the switching control signal transits from a first state to a second state when an output signal at the output terminal satisfies a predetermined condition, and the switching control signal transits from the second state to the first state after a period of time. And a switching frequency of the switch and an inductor ripple current of the inductor both vary with the input voltage.
摘要翻译： SMPS具有开关电路和控制器。开关电路具有输入端子和输出端子，并且还包括开关和电感器，其中开关电路通过控制开关的开关动作，基于输入端子处的输入电压来调节输出端子处的输出电压。控制器产生开关控制信号以控制开关，其中当输出端子处的输出信号满足预定条件时，开关控制信号从第一状态转换到第二状态，并且开关控制信号从第二状态转换到一段时间后的第一个状态。并且开关的开关频率和电感器的电感纹波电流都随输入电压而变化。

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