-
公开(公告)号：US10985748B2
公开(公告)日：2021-04-20
申请号：US16545748
申请日：2019-08-20
申请人： Apple Inc.
发明人： Marco A. Davila , Bogdan T. Bucheru
摘要： This disclosure describes a gate driver with voltage boosting capabilities. In some embodiments, the gate driver may comprise a charge pump that includes capacitor(s) and switch(es). Responsive a logic low input signal, the gate driver may bypass the capacitor(s) to allow the input digital signal to drive the gating signal directly. Conversely, responsive to a logic high input signal, the gate driver may couple the capacitor(s) in series with the input digital signal to generate a boosted gating signal. In some embodiments, the gate driver may comprise an inductor-capacitor resonant circuit to create a doubled output gating signal with respect to the input digital signal. In some embodiments, the resonant gate driver may include an additional voltage boosting capability that can be selectively enabled to compensate for a voltage drop during the signal transfer from the input to the output.
-
公开(公告)号：US10418850B2
公开(公告)日：2019-09-17
申请号：US15670946
申请日：2017-08-07
申请人： Intel Corporation
发明人： Bill Carter , Brian Griffith , Viktor Vogman
摘要： A power supply system includes at least one power supply module and at least one redundant power supply module. A power supply module may include a charging resistor in parallel with an OR-ing device to keep all filter capacitors charged as long as at least one power supply module remains operational. This may avoid current spikes at turn on and may enable the redundant module to turn on without using soft start.
-
公开(公告)号：US10340799B2
公开(公告)日：2019-07-02
申请号：US15772128
申请日：2016-09-28
发明人： Ming Liu , Shinya Kajiyama , Taizo Yamawaki , Ryosuke Ishida , Hirofumi Kurimoto , Yasushi Sugiyama
摘要： A step-up/down power supply, in which a circuit area is small, includes a step-down unit that generates an output voltage lower than an input voltage by turning on or off a step-down switch in which the input voltage of the step-up/down power supply is applied, and a step-up unit that generates an output voltage higher than the input voltage by turning on or off a step-up switch in which a ground is applied. A step-down gate voltage control circuit controls a gate voltage of the step-down switch and includes a gate voltage generating circuit that generates a first voltage and a second voltage for turning on the step-down switch. A gate voltage switching circuit switches between the first voltage and the second voltage, and the gate voltage generating circuit includes a first voltage source that generates the first voltage and a second voltage source that generates the second voltage.
-
公开(公告)号：US10122269B2
公开(公告)日：2018-11-06
申请号：US15402827
申请日：2017-01-10
申请人： Apple Inc.
发明人： Fabio Gozzini , Jay B. Fletcher , Shawn Searles , Sanjay Pant
摘要： A system that includes a regulator circuit is disclosed. The regulator circuit includes first and second phase units whose outputs are coupled to a power supply node of a circuit block, via respective coupled inductors. The first phase unit may initiate a charge cycle of the power supply node in response to assertion of a clock signal and generate a compensated current using currents measure through both inductors and the clock signal. In response to a determination that the compensated current is greater than a demand current generated using a voltage level of the power supply node and a reference voltage, the first phase unit may halt the charge cycle.
-
公开(公告)号：US10082811B2
公开(公告)日：2018-09-25
申请号：US14843496
申请日：2015-09-02
发明人： Chia-Liang Tai , Alan Roth , Eric Soenen
摘要： A power converter includes a first load terminal used to supply a current to a load and a second load terminal used to return a feedback voltage based on the current. A calibration circuit supplies a calibrated voltage processed from the feedback voltage, and a hysteretic comparator controls a current level of the current based on a difference between the feedback voltage and the calibrated voltage.
-
公开(公告)号：US10075072B2
公开(公告)日：2018-09-11
申请号：US15855417
申请日：2017-12-27
发明人： Toshikazu Kuwano
摘要： A semiconductor apparatus includes: a switch circuit connected between a first power supply terminal and an output terminal; a switching element connected between the output terminal and a second power supply terminal; and a control circuit that, when a predetermined period has elapsed since the entry of the switch circuit into an ON state in response to an enable signal, causes the switching element to start a switching operation to increase a power supply voltage supplied between the first power supply terminal and the second power supply terminal.
-
公开(公告)号：US09954439B1
公开(公告)日：2018-04-24
申请号：US15331867
申请日：2016-10-23
发明人： Masaru Nakamura
CPC分类号： H02M3/157 , H02M3/156 , H02M2003/1566
摘要： A control circuit of a switching power-supply device that converts a first DC voltage supplied from an input power source to a second DC voltage, includes: a first A/D converter that converts the second DC voltage into a first digital value, in response to a sampling clock depending on a first sampling clock and a second sampling clock; a control signal generation unit that generates a control signal for controlling on-and-off of the switching element based on of a difference between the first digital value and a target value; a regeneration completion sensing unit that senses completion of regeneration of the inductor and outputs a regeneration completion signal; and a sampling clock generation unit that: generates the first sampling clock, in response to the control signal to turn on the switching element, and generates the second sampling clock, in response to the regeneration completion signal.
-
公开(公告)号：US09705399B2
公开(公告)日：2017-07-11
申请号：US14272984
申请日：2014-05-08
发明人： Jindrich Svorc
CPC分类号： H02M3/158 , H02M3/1588 , H02M2001/0051 , H02M2001/0054 , Y02B70/1466 , Y02B70/1491
摘要： A buck converter device with a zero-cross comparator with an adaptive threshold. The buck converter comprises of a control block that controls a first p-channel MOSFET switch, and a second n-channel MOSFET switch. The p-channel MOSFET switch and the n-channel MOSFET switch provide a sense signal utilizing parasitic bipolar junction transistors. The p-channel MOSFET provides a sense current for the pnp parasitic bipolar junction transistor, The n-channel MOSFET provides a sense current for the npn parasitic bipolar junction transistor. The sense current is stored on a capacitor, and establishes an adaptive offset adjustment to a zero-cross comparator.
-
公开(公告)号：US09477247B2
公开(公告)日：2016-10-25
申请号：US14552131
申请日：2014-11-24
申请人： SunPower Corporation
发明人： Jonathan Ehlmann , Daniel Blair , Eric Martina , Patrick Chapman , Brian Kuhn
摘要： A device, system, and method for global maximum power point tracking comprises monitoring an output power of a DC power source while executing a maximum power point tracking algorithm and adjusting a maximum power point tracking command signal in response to the output power being less than a reference output power. The command signal is adjusted until the output power exceeds a previous output power by a reference amount. The command signal may be a voltage command signal, a current command signal, an impedance command signal, a duty ratio command signal, or the like.
摘要翻译： 用于全局最大功率点跟踪的设备，系统和方法包括：在执行最大功率点跟踪算法的同时监视直流电源的输出功率，并且响应于小于一的功率点的输出功率来调整最大功率点跟踪命令信号 参考输出功率。 调整指令信号，直到输出功率超过先前的输出功率为基准量。 指令信号可以是电压指令信号，电流指令信号，阻抗指令信号，占空比指令信号等。
-
公开(公告)号：US09369038B2
公开(公告)日：2016-06-14
申请号：US13900635
申请日：2013-05-23
申请人： FUJITSU LIMITED
发明人： Yasufumi Sakai
IPC分类号： G05F1/40 , H02M3/156 , H01L27/06 , H01L21/8234 , H01L27/07 , H03K17/16 , G05F1/44 , H02M1/08 , H02M3/158
CPC分类号： H02M3/156 , G05F1/44 , H01L21/823493 , H01L27/0629 , H01L27/0727 , H02M1/08 , H02M3/1588 , H03K17/162 , H03K2217/0018 , H03K2217/0063 , Y02B70/1466
摘要： A semiconductor integrated circuit that includes: a capacitive element that has a first end connected to a first node and a second end connected to a second node of higher electrical potential than the first node; and a semiconductor element that has a source electrode, a drain electrode and a gate electrode respectively formed in a second conducting region, the second conducting region being formed with a different conducting type to a first conducting region, and the first conducting region formed on a substrate, with the source electrode and the second conducting region connected to the first node, and the first conducting region connected to the second node.
摘要翻译： 一种半导体集成电路，包括：电容元件，其具有连接到第一节点的第一端和连接到比所述第一节点更高电位的第二节点的第二端; 以及半导体元件，其具有分别形成在第二导电区域中的源极电极，漏极电极和栅极电极，所述第二导电区域形成为与第一导电区域不同的导电类型，并且所述第一导电区域形成在第一导电区域上 衬底，源电极和第二导电区域连接到第一节点，第一导电区域连接到第二节点。
-
-
-
-
-
-
-
-
-
搜索结果
2315 条记录 (耗时 0.054 秒)