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71. 发明授权

US09429965B2 Multiple chip voltage feedback technique for driving LED's 有权
标题翻译：用于驱动LED的多芯片电压反馈技术
公开(公告)号：US09429965B2
公开(公告)日：2016-08-30
申请号：US12611853
申请日：2009-11-03
申请人： Kevin Peter D'Angelo , Eddie Lok Chuen Ng
发明人： Kevin Peter D'Angelo , Eddie Lok Chuen Ng
IPC分类号： G05F1/565 , G05F1/46 , H05B33/08
CPC分类号： H05B33/0815 , G05F1/461 , G05F1/565 , H02M3/04 , H05B33/0827 , H05B33/0845
摘要： A multiple chip voltage feedback technique allows multiple strings of LED's and current sinks to be efficiently powered by a DC-to-DC voltage converter within an appliance. A connected series of differential amplifiers or multiplexers are used to monitor the voltages between the connected LED's and the current sinks, progressively determine the lowest voltage, and then feed the lowest voltage back to the voltage converter. The DC-to-DC voltage converter monitors this lowest voltage and adjusts its output in order to ensure that the strings have adequate voltage with which to function, even as the LED's have different forward voltages and the strings are asynchronously enabled and disabled.
摘要翻译：多芯片电压反馈技术允许多个LED串和电流吸收器由设备内的DC-DC电压转换器有效地供电。使用连接的差分放大器或多路复用器系列来监视连接的LED和电流吸收器之间的电压，逐渐确定最低电压，然后将最低电压馈送到电压转换器。 DC-DC电压转换器监控这个最低电压并调整其输出，以确保串具有足够的电压，即使LED具有不同的正向电压，并且串是异步启用和禁用的。

72. 发明授权

US09417646B2 Power supply circuit 有权
标题翻译：电源电路
公开(公告)号：US09417646B2
公开(公告)日：2016-08-16
申请号：US14327624
申请日：2014-07-10
申请人： Rohm Co., Ltd.
发明人： Makoto Yasusaka
IPC分类号： G05F1/565 , G05F1/575 , H02M3/156
CPC分类号： G05F1/575
摘要： A power supply circuit includes a transistor disposed between an input terminal to which an input voltage is applied and an output terminal to which an output voltage is applied, and an error amplifier configured to compare a feedback voltage varied based on the output voltage and a reference voltage, and control the transistor based on a result of the comparison, the reference voltage being generated by selectively using the input voltage or the output voltage.
摘要翻译：电源电路包括设置在施加输入电压的输入端子与施加有输出电压的输出端子之间的晶体管，以及误差放大器，被配置为将基于输出电压和参考电压变化的反馈电压进行比较电压，并且基于比较结果来控制晶体管，通过选择性地使用输入电压或输出电压来产生参考电压。

73. 发明授权

US09397653B2 Semiconductor device 有权
标题翻译：半导体器件
公开(公告)号：US09397653B2
公开(公告)日：2016-07-19
申请号：US14465387
申请日：2014-08-21
申请人： Kabushiki Kaisha Toshiba
发明人： Sen Suzuki
IPC分类号： H03L7/00 , H03K17/22 , G05F1/56 , G05F1/565 , G06F1/26
CPC分类号： H03K17/223 , G05F1/56 , G05F1/565 , G06F1/26
摘要： According to one embodiment, the semiconductor device includes a power-on reset circuit and a constant voltage generation circuit. The power-on reset circuit generates a power-on reset signal to initialize an internal circuit when power supply is turned on. The constant voltage generation circuit supplies an output voltage to the internal circuit. The constant voltage generation circuit includes a differential amplifier, a first MOS transistor, a second MOS transistor, a switch, and a pull-up unit. The pull-up unit is provided between the power supply input terminal and the gate terminal of the second MOS transistor. The pull-up unit controls a voltage applied to the gate terminal of the second MOS transistor in accordance with the power-on reset signal.
摘要翻译：根据一个实施例，半导体器件包括上电复位电路和恒压产生电路。上电复位电路产生上电复位信号，以在电源接通时初始化内部电路。恒压产生电路向内部电路提供输出电压。恒压产生电路包括差分放大器，第一MOS晶体管，第二MOS晶体管，开关和上拉单元。上拉单元设置在电源输入端子和第二MOS晶体管的栅极端子之间。上拉单元根据上电复位信号控制施加到第二MOS晶体管的栅极端子的电压。

74. 发明授权

US09379601B2 Charge module, driving circuit, and operating method 有权
标题翻译：充电模块，驱动电路和操作方法
公开(公告)号：US09379601B2
公开(公告)日：2016-06-28
申请号：US13859848
申请日：2013-04-10
申请人： Himax Analogic, Inc.
发明人： Kuan-Jen Tseng
IPC分类号： H03K17/0412 , H02M1/08 , H03K19/003 , G05F1/565 , G05F1/571 , G05F1/569
CPC分类号： H02M1/08 , G05F1/565 , G05F1/569 , G05F1/571 , H03K17/04123 , H03K19/003 , H03K19/00307
摘要： A charge module is configured to pre-charge a control node to a pre-charged voltage, such that in a case a control module outputs a control voltage, a drive module is activated according to a gate voltage summed by the control voltage and the pre-charged voltage. The charge module includes a first switch, a charge switch, and a second switch. The first switch is configured to provide a first voltage to an operation node. The charge switch is configured to be switched on corresponding to the first voltage of the operation node, so as to charge the control node. The second switch is configured to provide a second voltage to the operation node according to the gate voltage.
摘要翻译：充电模块被配置为将控制节点预充电到预充电电压，使得在控制模块输出控制电压的情况下，驱动模块根据由控制电压和预充电相加的栅极电压而被激活充电电压。充电模块包括第一开关，充电开关和第二开关。第一开关被配置为向操作节点提供第一电压。充电开关被配置为对应于操作节点的第一电压被接通，从而对控制节点充电。第二开关被配置成根据栅极电压向操作节点提供第二电压。

75. 发明授权

US09367073B2 Voltage regulator 有权
标题翻译：电压调节器
公开(公告)号：US09367073B2
公开(公告)日：2016-06-14
申请号：US14569114
申请日：2014-12-12
申请人： Seiko Instruments Inc.
发明人： Tsutomu Tomioka , Masakazu Sugiura , Daisuke Yoshioka , Hiroki Chuman
IPC分类号： G05F1/565 , G05F1/56 , G05F1/567
CPC分类号： G05F1/56 , G05F1/567
摘要： Provided is a voltage regulator capable of preventing an output voltage from being increased even when a leakage current flows in an output transistor. The voltage regulator includes a leakage current control circuit. The leakage current control circuit includes an NMOS transistor connected to an output terminal of the voltage regulator. When the output voltage of the voltage regulator increases due to the leakage current of the output transistor, the leakage current control circuit causes the leakage current to flow through the NMOS transistor, to thereby prevent an increase in output voltage.
摘要翻译：提供了即使当漏电流在输出晶体管中流动时也能够防止输出电压增加的电压调节器。电压调节器包括漏电流控制电路。泄漏电流控制电路包括连接到电压调节器的输出端的NMOS晶体管。当电压调节器的输出电压由于输出晶体管的漏电流而增加时，漏电流控制电路使漏电流流过NMOS晶体管，从而防止输出电压的增加。

76. 发明授权

US09354642B2 Load adaptive loop based voltage source 有权
公开(公告)号：US09354642B2
公开(公告)日：2016-05-31
申请号：US14662700
申请日：2015-03-19
申请人： MARVELL ISRAEL (M.I.S.L) LTD.
发明人： Shimon Avitan
IPC分类号： G05F3/20 , G05F1/10 , G05F1/565
CPC分类号： G05F1/10 , G05F1/565
摘要： Systems and methods are provided for a power supply. A first output stage is configured to supply power from a power source at a target voltage to a device in an integrated circuit in response to a power demand of the device. Load detector circuitry is configured to detect a load resulting from operation of the device, and a supplemental output stage is configured to selectively supply supplemental power from the power source to the device, in addition to the power provided by the first output stage, in response to detection of an additional load resulting from operation of the device.

77. 发明授权

US09348347B2 Voltage generator with current source compensated for an error current operable over a wide voltage range 有权
标题翻译：具有电流源的电压发生器补偿了可在宽电压范围内工作的误差电流
公开(公告)号：US09348347B2
公开(公告)日：2016-05-24
申请号：US13969865
申请日：2013-08-19
申请人： Linear Technology Corporation
发明人： Robert Dobkin , Amitkumar Pravin Patel
IPC分类号： H02M3/156 , G05F1/575 , G05F1/565 , H02M1/08 , G05F1/56 , G05F1/573 , H02M3/158
CPC分类号： G05F1/56 , G05F1/565 , G05F1/573 , G05F1/575 , H02M1/08 , H02M3/156 , H02M3/1588
摘要： In one embodiment, a regulator circuit for generating a regulated output voltage Vout has an error amplifier using a pair of bipolar transistors at its front end. The error amplifier compares the regulated output voltage to a reference voltage Vref. A precision current source draws a first current through a user-selected set resistance to generate the desired Vref. The regulator circuit controls a power stage to cause Vout to be equal to Vref. The base current into one of the bipolar transistors normally distorts the current through the set resistance. A base current compensation circuit is coupled to the current source to adjust the first current by a value equal to the base current to offset the base current. Therefore, Vref is not affected by the base current. The error amplifier may be in a linear regulator or a switching regulator. The compensation circuit may be used in other applications.
摘要翻译：在一个实施例中，用于产生调节输出电压Vout的调节器电路在其前端具有使用一对双极晶体管的误差放大器。误差放大器将稳压输出电压与参考电压Vref进行比较。精密电流源通过用户选择的设定电阻画出第一电流以产生所需的Vref。调节器电路控制功率级以使Vout等于Vref。进入一个双极晶体管的基极电流通常使电流扭曲设定电阻。基极电流补偿电路耦合到电流源，以将第一电流调整为等于基极电流的值以抵消基极电流。因此，Vref不受基极电流的影响。误差放大器可以在线性调节器或开关调节器中。补偿电路可用于其他应用。

78. 发明授权

US09325240B2 Low input voltage boost converter with peak inductor current control and offset compensated zero detection 有权
标题翻译：低输入电压升压转换器，具有峰值电感电流控制和偏移补偿零检测
公开(公告)号：US09325240B2
公开(公告)日：2016-04-26
申请号：US14600425
申请日：2015-01-20
申请人： UNIVERSITY OF VIRGINIA PATENT FOUNDATION
发明人： Benton H. Calhoun , Aatmesh Shrivastava
IPC分类号： G05F1/56 , H02M3/158 , G05F1/565 , G05F1/46 , H02M1/00
CPC分类号： H02M3/158 , G05F1/462 , G05F1/565 , H02M1/088 , H02M3/156 , H02M2001/0025
摘要： The low input voltage boost converter with peak inductor current control and offset compensated zero detection provide a boost converter scheme to harvest energy from sources with small output voltages. Some embodiments described herein includes a thermoelectric boost converter that combines an IPEAK control scheme with offset compensation and duty cycled comparators to enable energy harvesting from TEG inputs as low as 5 mV to 10 mV, and the peak inductor current is independent to first order of the input voltage and output voltage. A control circuit can be configured to sample the input voltage (VIN) and then generate a pulse with a duration inversely proportional to VIN so as to control the boost converter switches such that a substantially constant peak inductor current is generated.
摘要翻译：具有峰值电感电流控制和偏移补偿零检测的低输入电压升压转换器提供了一种升压转换器方案，用于从具有小输出电压的电源收集能量。本文描述的一些实施例包括将IPEAK控制方案与偏移补偿和负载循环比较器组合的热电升压转换器，以使能够从低至5mV至10mV的TEG输入能量收集，并且峰值电感器电流独立于输入电压和输出电压。控制电路可以被配置为对输入电压（VIN）进行采样，然后产生具有与VIN成反比的持续时间的脉冲，以便控制升压转换器开关，使得产生基本恒定的峰值电感电流。

79. 发明授权

US09224491B1 Average voltage band detection and use for tuning of voltages in ASICS 有权
标题翻译：用于ASICS中电压调谐的平均电压带检测和使用
公开(公告)号：US09224491B1
公开(公告)日：2015-12-29
申请号：US14586502
申请日：2014-12-30
申请人： SanDisk Technologies Inc.
发明人： Vikram Somaiya
IPC分类号： G11C16/30 , G11C16/26 , H01L27/115 , G05F1/565
CPC分类号： G11C16/30 , G05F1/565 , G11C11/5628 , G11C16/0483 , G11C16/26 , G11C29/021 , G11C29/028 , H01L27/11582
摘要： The timing and power consumption of controller circuits are is dependent on Process, Voltage, and Temperature. If the controller ASIC can measure the average voltage level during run-time, then firmware can use this information to tune the voltages for optimal speed/power performance. A voltage detector generates an output of, for example, 3 bits, where each state of the three bit bus represents a voltage band. These bits can then be used by the firmware to trim the appropriate regulators to boost/lower the voltages. This can be done for both the core voltage and I/O voltages. The firmware can be further optimized to take into account the states of temperature detectors and process detectors along with voltage band detector to optimize the system performance.
摘要翻译：控制器电路的时序和功耗取决于过程，电压和温度。如果控制器ASIC可以在运行时测量平均电压电平，则固件可以使用该信息来调整电压以获得最佳的速度/功率性能。电压检测器产生例如3位的输出，其中三位总线的每个状态表示电压带。然后固件可以使用这些位来修整适当的稳压器来升高/降低电压。这可以对核心电压和I / O电压进行。固件可以进一步优化，以考虑到温度检测器和过程检测器的状态以及电压带检测器，以优化系统性能。

80. 发明授权

US09223329B2 Low drop out voltage regulator with operational transconductance amplifier and related method of generating a regulated voltage 有权
标题翻译：具有工作跨导放大器的低压降稳压器及产生调节电压的相关方法
公开(公告)号：US09223329B2
公开(公告)日：2015-12-29
申请号：US14097796
申请日：2013-12-05
申请人： STMICROELECTRONICS S.r.l.
发明人： Francesco Pulvirenti , Santo Ilardo
IPC分类号： G05F1/565 , G05F1/56
CPC分类号： G05F1/56 , G05F1/565
摘要： A low drop out voltage regulator includes an operational transconductance amplifier configured to be supplied with a supply voltage of the regulator, receive as inputs a reference voltage and a feedback voltage, and generate an intermediate current based upon a difference between the reference voltage and the feedback voltage. A current-to-voltage amplification stage is configured to be supplied with a boosted voltage greater than the supply voltage from a high voltage line, receive as input the intermediate current, and generate a driving voltage that is changed based upon the intermediate current. A pass transistor is controlled with the driving voltage to keep constant on a second conduction terminal thereof a regulated output voltage. A feedback network generates the feedback voltage based on the regulated output voltage.
摘要翻译：低压差稳压器包括：运算跨导放大器，被配置为提供调节器的电源电压，接收参考电压和反馈电压作为输入，并且基于参考电压和反馈之间的差产生中间电流电压。电流 - 电压放大级被配置为被提供大于来自高压线的电源电压的升压电压，作为输入接收中间电流，并且产生基于中间电流而改变的驱动电压。通过驱动电压来控制传输晶体管，以在其第二导通端子上保持恒定的稳定的输出电压。反馈网络基于稳压输出电压产生反馈电压。

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