-
公开(公告)号：US20180120877A1
公开(公告)日：2018-05-03
申请号：US15336367
申请日：2016-10-27
Applicant: Analog Devices, Inc.
Inventor： Jun Zhao
Abstract: Techniques to control the start point of an output voltage of a power supply for a short period after receive a “stop switching” signal, which will switch a DC-DC switching regulator from a pulse width modulation (PWM) mode to a linear mode to precisely position the output voltage at a certain level. In this way, the power supply can remove any output ripple caused by the PWM mode and can minimize or remove the sampling error to a low-power system in every cycle. In addition, the power supply can intelligently communicate a “power ready” signal back to the system, resulting in a synchronized system.
-
公开(公告)号：US20170271972A1
公开(公告)日：2017-09-21
申请号：US15072059
申请日：2016-03-16
Applicant: Analog Devices, Inc.
Inventor： Jun Zhao , Brandon Day
IPC: H02M1/088
CPC classification number: H02M1/088 , G05F1/56 , G05F1/563 , H02M3/155 , H02M2001/0045 , H03F1/0261
Abstract: Apparatus and methods for a bias supply circuit to support power supply including a switched-mode voltage converter cascaded with an n-channel-based linear regulator are provided. In an example, a cascaded power supply system can include a switched-mode DC-to-DC power converter, including an input voltage node, a first stage output voltage node, and a bootstrapped floating bias voltage node, and a linear regulator circuit. The linear regulator circuit can include an n-channel field-effect transistor (NFET) pass transistor, including a drain terminal coupled to the first stage output voltage node, a gate terminal, and a source terminal configured to provide a second-stage output voltage, and a gate driver circuit, including a driver output coupled to the gate terminal of the NFET pass transistor, and a high side supply node configured to receive a bias voltage generated from the bootstrapped floating bias voltage node.
-
公开(公告)号：US10243443B2
公开(公告)日：2019-03-26
申请号：US15072059
申请日：2016-03-16
Applicant: Analog Devices, Inc.
Inventor： Jun Zhao , Brandon Day
Abstract: Apparatus and methods for a bias supply circuit to support power supply including a switched-mode voltage converter cascaded with an n-channel-based linear regulator are provided. In an example, a cascaded power supply system can include a switched-mode DC-to-DC power converter, including an input voltage node, a first stage output voltage node, and a bootstrapped floating bias voltage node, and a linear regulator circuit. The linear regulator circuit can include an n-channel field-effect transistor (NFET) pass transistor, including a drain terminal coupled to the first stage output voltage node, a gate terminal, and a source terminal configured to provide a second-stage output voltage, and a gate driver circuit, including a driver output coupled to the gate terminal of the NFET pass transistor, and a high side supply node configured to receive a bias voltage generated from the bootstrapped floating bias voltage node.
-
4.发明授权公开(公告)号：US09379611B2
公开(公告)日：2016-06-28
申请号：US14521827
申请日：2014-10-23
Applicant: Analog Devices, Inc.
Inventor： Jun Zhao
CPC classification number: H02M3/158 , H02M2001/009
Abstract: A switching power converter circuit comprises an input port, a first circuit supply rail having a first positive voltage greater than circuit ground, a second circuit supply rail having a second positive voltage greater than circuit ground, and an inductor electrically coupled to the input port, wherein inductor current flows in a first direction through the inductor to generate the first circuit supply rail and flows in an opposite direction through the inductor to generate the second circuit supply rail.
Abstract translation: 开关电源转换器电路包括输入端口，具有大于电路接地的第一正电压的第一电路供电轨道，具有大于电路接地的第二正电压的第二电路供电轨道和电耦合到输入端口的电感器， 其中电感器电流沿着第一方向流过电感器以产生第一电路电源轨并沿相反方向流过电感器以产生第二电路供电轨。
-
-
-
Search Results
4
records
(took 0.012 seconds)
