专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US08829871B2 Current mode control for DC-DC converter having peak current dependent variable off-time 有权
标题翻译：具有峰值电流依赖变量关断时间的DC-DC转换器的电流模式控制
公开(公告)号：US08829871B2
公开(公告)日：2014-09-09
申请号：US13653670
申请日：2012-10-17
申请人： Texas Instruments Deutschland GmbH
发明人： Erich J. Bayer
IPC分类号： G05F1/56 , G05F1/565 , G05F1/575
CPC分类号： G05F1/595 , H02M3/1563 , H02M2001/0032 , Y02B70/16
摘要： A DC-DC converter includes a current control stage configured to provide a threshold based on an output voltage, an input voltage, and a reference voltage for the DC-DC converter. An off time control can be configured to receive the threshold and control an off time for the DC-DC converter based on the threshold such that the off time is inversely proportional to the peak current generated by the DC-DC converter.
摘要翻译： DC-DC转换器包括电流控制级，其被配置为基于用于DC-DC转换器的输出电压，输入电压和参考电压来提供阈值。关闭时间控制可以被配置为接收阈值并且基于阈值来控制DC-DC转换器的关闭时间，使得关断时间与由DC-DC转换器产生的峰值电流成反比。

92. 发明授权

US08816658B1 Low-dropout converters with feedback compensation 有权
标题翻译：具有反馈补偿的低压差转换器
公开(公告)号：US08816658B1
公开(公告)日：2014-08-26
申请号：US12204316
申请日：2008-09-04
申请人： Guiseppe De Vita , Shafiq M. Jamal
发明人： Guiseppe De Vita , Shafiq M. Jamal
IPC分类号： G05F1/565
CPC分类号： G05F1/575 , G05F1/565
摘要： A low-dropout converter includes a capacitor and a resistor. The resistor is coupled to the capacitor. The resistor includes a fixed resistor and at least one variable resistor. The capacitor and the resistor determine the location of a zero of the transfer function of the low-dropout converter.
摘要翻译：低压差转换器包括电容器和电阻器。电阻器耦合到电容器。电阻器包括固定电阻器和至少一个可变电阻器。电容器和电阻器确定低压差转换器的传递函数零点的位置。

93. 发明授权

US08797008B2 Low-dropout regulator overshoot control 有权
标题翻译：低压差稳压器过冲控制
公开(公告)号：US08797008B2
公开(公告)日：2014-08-05
申请号：US13344890
申请日：2012-01-06
申请人： Sachin Devegowda
发明人： Sachin Devegowda
IPC分类号： G05F1/56 , G05F1/565 , G05F1/575
CPC分类号： G05F1/573
摘要： Representative implementations of devices and techniques control regulator output overshoot. An offset signal is provided to a component of the regulator during at least a portion of the regulator start-up.
摘要翻译：设备和技术的代表性实现控制调节器输出过冲。在调节器启动的至少一部分期间，将偏移信号提供给调节器的部件。

94. 发明授权

US08779744B2 Sensing and feedback with enhanced stability in a current mode control voltage regulator 有权
标题翻译：在电流模式控制电压调节器中增强稳定性的感应和反馈
公开(公告)号：US08779744B2
公开(公告)日：2014-07-15
申请号：US12904449
申请日：2010-10-14
申请人： Seth Kahn
发明人： Seth Kahn
IPC分类号： G05F1/565
CPC分类号： H02M3/156 , H02M2001/0009 , H02M2001/0025
摘要： The disclosed embodiments of voltage regulators incorporate a current mode control architecture. In one embodiment, a voltage regulator includes a power switch having an input and an output. The power switch is configured to provide a first voltage during a first conduction period and a second voltage during a second conduction period. An output filter is coupled between the power switch output and an output terminal to be coupled to a load. An adjustment device is coupled to sense a current sensing voltage corresponding to a current provided to the output filter. The adjustment device is configured to convert the current sensing voltage to an adjusted current sensing voltage, including replacing a current sensing resistance associated with the current sensing voltage with a reference resistance. Control circuitry includes a current sensing input coupled to the adjustment device to sense the adjusted current sensing voltage, and an output in communication with the power switch input. The control circuitry is configured to cause a transition of the power switch from the second conduction period to the first conduction period responsive to the adjusted current sensing voltage.
摘要翻译：所公开的电压调节器的实施例结合了电流模式控制架构。在一个实施例中，电压调节器包括具有输入和输出的功率开关。电源开关被配置为在第一导通周期期间提供第一电压，并在第二导通周期期间提供第二电压。输出滤波器耦合在功率开关输出端和要耦合到负载的输出端子之间。耦合调节装置以感测对应于提供给输出滤波器的电流的电流感测电压。调整装置被配置为将电流感测电压转换为调整的电流感测电压，包括用参考电阻替换与电流感测电压相关联的电流感测电阻。控制电路包括耦合到调节装置以感测调整的电流感测电压的电流感测输入，以及与功率开关输入通信的输出。控制电路被配置为响应于调整的电流感测电压而使功率开关从第二导通周期转换到第一导通周期。

95. 发明授权

US08773083B2 Detection of insufficient current sourcing capability of supplied power 有权
标题翻译：检测供电电流不足的能力
公开(公告)号：US08773083B2
公开(公告)日：2014-07-08
申请号：US13353470
申请日：2012-01-19
申请人： Frederick L. Martin , Edgar H. Callaway, Jr.
发明人： Frederick L. Martin , Edgar H. Callaway, Jr.
IPC分类号： G05F1/56 , G05F1/565 , G05F1/575
CPC分类号： H02J1/14 , G01R31/3606
摘要： A method, apparatus, and device provide for the detection of insufficient supplied power supplied to a device. A current multiplier of the device, operable as a voltage regulator, is coupled to the power source, receives a clock signal, and generates a control signal. A digital counter, clocked by the clock signal and reset by the control signal, generates an overflow output in response to an overflow condition of the digital counter that indicates that the current sourcing capability of the power source has fallen below a current threshold of the device. A compensatory response by the device in response to the detection of insufficient supplied power may be provided as well.
摘要翻译：一种方法，装置和装置提供用于检测供应给设备的不充足的供电功率。可操作为电压调节器的器件的电流倍增器耦合到电源，接收时钟信号并产生控制信号。由时钟信号计时并由控制信号复位的数字计数器响应于数字计数器的溢出状态而产生溢出输出，该溢出条件指示电源的电流源能力已经低于器件的电流阈值。也可以提供响应于检测不足供应电力的装置的补偿响应。

96. 发明授权

US08729873B2 DC-to-DC converter with high-side switch and low-side switch 有权
标题翻译：具有高侧开关和低侧开关的DC-DC转换器
公开(公告)号：US08729873B2
公开(公告)日：2014-05-20
申请号：US13232270
申请日：2011-09-14
申请人： Yuichi Goto
发明人： Yuichi Goto
IPC分类号： G05F1/56 , G05F1/565 , G05F1/569
CPC分类号： H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： In general, according to one embodiment, a DC-to-DC converter includes a high-side switch, a low-side switch, a diode, a high-side controller and a low-side controller. The low-side switch is connected in series with the high-side switch. The diode is connected in parallel with the low-side switch. The high-side controller has a detector for detecting a current of the high-side switch and controls the high-side switch to be turned on or off in accordance with an output of the detector. The low-side controller controls the low-side switch to be turned off when the high-side switch is ON and controls the low-side switch to be turned on or off in accordance with a peak value of the output of the detector when the high-side switch is OFF.
摘要翻译：通常，根据一个实施例，DC-DC转换器包括高侧开关，低侧开关，二极管，高侧控制器和低侧控制器。低侧开关与高边开关串联。二极管与低边开关并联连接。高侧控制器具有用于检测高侧开关的电流的检测器，并根据检测器的输出控制高侧开关的导通或截止。低侧控制器控制低侧开关在高侧开关接通时关闭，并根据检测器输出的峰值控制低侧开关的导通或关断高侧开关关闭。

97. 发明授权

US08710813B2 Low drop-out regulator providing constant current and maximum voltage limit 有权
标题翻译：低压差稳压器提供恒定电流和最大电压限制
公开(公告)号：US08710813B2
公开(公告)日：2014-04-29
申请号：US12420324
申请日：2009-04-08
申请人： Ta-Yung Yang , Jenn-Yu Lin
发明人： Ta-Yung Yang , Jenn-Yu Lin
IPC分类号： G05F1/565 , G05F1/575
CPC分类号： G05F1/575
摘要： A low drop-out regulator is disclosed. An unregulated DC input terminal receives an input voltage. A pass circuit is coupled between the unregulated DC input terminal and a regulated DC output terminal for supplying a power to the regulated DC output terminal. An amplifying circuit controls the pass circuit for providing a constant voltage or/and a constant current in response to an output voltage or/and an output current.
摘要翻译：公开了一种低压差调节器。未调节的直流输入端子接收输入电压。通过电路耦合在未调节的DC输入端子和用于向调节的DC输出端子供电的稳压DC输出端子之间。放大电路控制通过电路，以响应于输出电压或/和输出电流提供恒定电压或/和恒定电流。

98. 发明申请

US20130214754A1 POWER SUPPLY DEVICE 审中-公开
标题翻译：电源设备
公开(公告)号：US20130214754A1
公开(公告)日：2013-08-22
申请号：US13676145
申请日：2012-11-14
申请人： CHENG-LUNG CHIANG
发明人： CHENG-LUNG CHIANG
IPC分类号： G05F1/565
CPC分类号： G05F1/565 , H02M3/155 , H02M3/1588 , H02M2001/0032 , H02M2001/348 , Y02B70/1466 , Y02B70/16
摘要： A power supply device includes a power supply unit, a buck converter, a logic circuit, and a snubber circuit. The buck converter and the logic circuit are connected to the power supply unit. The buck converter is configured to convert a direct current voltage output from the power supply unit into a preset voltage supplied to an input terminal of an electronic device. The snubber circuit is electronically connected between the buck converter and the logic circuit. The power supply unit determines whether the buck converter is under a heavy load or light load. If the buck converter is under the heavy load, the power supply unit triggers the logic circuit to allow the snubber circuit to connect to ground through the logic circuit. If the buck converter is under the light load, the power supply unit triggers the logic circuit to allow the snubber circuit to disconnect from ground.
摘要翻译：电源装置包括电源单元，降压转换器，逻辑电路和缓冲电路。降压转换器和逻辑电路连接到电源单元。降压转换器被配置为将从电源单元输出的直流电压转换为提供给电子设备的输入端子的预设电压。缓冲电路电连接在降压转换器和逻辑电路之间。电源单元确定降压转换器是否处于重负载或轻负载状态。如果降压转换器负载较重，则电源单元触发逻辑电路，以使缓冲电路通过逻辑电路连接到地。如果降压转换器处于轻负载状态，则电源单元触发逻辑电路，以使缓冲电路与地断开。

99. 发明授权

US08487598B2 DC-DC converter with unity-gain feedback amplifier driving bias transistor 有权
标题翻译：具有单位增益反馈放大器驱动偏置晶体管的DC-DC转换器
公开(公告)号：US08487598B2
公开(公告)日：2013-07-16
申请号：US12870868
申请日：2010-08-30
申请人： Srinivas Venkata Veeramreddi , Murugesh Prashanth Subramaniam , Harikrishna Parthasarathy
发明人： Srinivas Venkata Veeramreddi , Murugesh Prashanth Subramaniam , Harikrishna Parthasarathy
IPC分类号： G05F1/56 , G05F1/563 , G05F1/565
CPC分类号： H02M3/158 , H02M2001/0032 , Y02B70/16
摘要： An output stage of a switching DC-DC converter includes a pair of transistors and a bias transistor connected between the transistors. A voltage regulator generates a bias voltage to bias a control terminal of the bias transistor with a fixed bias voltage. The voltage regulator is operable in a full-power mode and a low-power mode. The voltage regulator consumes larger current in the full-power mode than in the low-power mode. At low load currents, the voltage regulator is operated in the low-power mode when both the transistors in the pair of transistors are off, and in the full-power mode otherwise.
摘要翻译：开关DC-DC转换器的输出级包括一对晶体管和连接在晶体管之间的偏置晶体管。电压调节器产生偏置电压，以偏置固定偏压的偏置晶体管的控制端。电压调节器可在全功率模式和低功耗模式下工作。在全功率模式下，电压调节器消耗的电流大于低功耗模式。在低负载电流下，当两对晶体管中的晶体管都断开时，电压调节器以低功耗模式工作，否则为全功率模式。

100. 发明授权

US08476886B1 Differential hysteretic DC-DC converter 有权
标题翻译：差分滞回DC-DC转换器
公开(公告)号：US08476886B1
公开(公告)日：2013-07-02
申请号：US12127670
申请日：2008-05-27
申请人： Francesco Carobolante , Stephen W. Bryson
发明人： Francesco Carobolante , Stephen W. Bryson
IPC分类号： G05F1/565 , G05F1/569 , G05F1/575
CPC分类号： H02M3/1563
摘要： A hysteretic DC-DC converter includes a reference circuit, a hysteretic comparator, and a control circuit. The hysteretic comparator may be configured to compare a monitored output of the converter to a reference signal generated by the reference circuit and to compare a load ground of the output of the converter to a reference signal ground of the reference signal. The hysteretic comparator may perform the aforementioned comparisons simultaneously. The hysteretic comparator may generate a comparator output based on the comparison of the output of the converter to the reference signal and the comparison of the load ground to the reference signal ground. The control circuit may vary a control output to increase or decrease the output of the converter based on the comparator output.
摘要翻译：迟滞DC-DC转换器包括参考电路，迟滞比较器和控制电路。迟滞比较器可以被配置为将转换器的监视输出与由参考电路产生的参考信号进行比较，并将转换器的输出的负载地与参考信号的参考信号地相比较。滞后比较器可以同时执行上述比较。迟滞比较器可以基于转换器的输出与参考信号的比较以及负载地与参考信号地的比较来产生比较器输出。控制电路可以根据比较器输出改变控制输出以增加或减少转换器的输出。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式