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1. 发明授权

US10141832B2 Systems and methods for reducing switch stress in switched mode power supplies 有权
公开(公告)号：US10141832B2
公开(公告)日：2018-11-27
申请号：US15743482
申请日：2016-07-11
申请人： The Governing Council Of The University Of Toronto , Maxim Integrated Products, Inc.
发明人： Nenad Vukadinovic , Aleksandar Prodic , Cory Brent Arnold , Brett A. Miwa , Michael Warren Baker
IPC分类号： H02M1/088 , H02M1/14 , H02M3/158 , H02M1/00
摘要： In various embodiments described in the present disclosure, various methods and systems are introduced, that may reduce and/or eliminate the voltage spikes on the power switches by avoiding operation at zero-ripple duty ratios. In a first aspect, a method for reducing voltage spikes across switches in a multi-level converter is provided, the method comprising: receiving an error value associated with a difference between a measured output voltage and a reference output voltage; determining a target duty cycle value based at least on a control feedback loop adapted to minimize the error value; if the target duty cycle value is equal or approximately equal to one or more critical duty ratio values, controlling the operation of the multi-level converter to operate the multi-level converter with an averaging sequence, the averaging sequence adapted to, on average, result in, or sufficiently approximate, the one or more critical duty ratio values, but not operate at the one or more critical duty ratio values; and generating one or more pulse-width modulated signals to control the operation of the multi-level converter based on at least one of the target duty cycle and the averaging sequence.

2. 发明申请

US20180337602A1 DC-TO-DC CONVERTERS CAPABLE OF DISCONTINUOUS CONDUCTION MODE, AND ASSOCIATED METHODS 审中-公开
公开(公告)号：US20180337602A1
公开(公告)日：2018-11-22
申请号：US15981058
申请日：2018-05-16
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Justin Michael Burkhart , Michael Warren Baker , Brett A. Miwa
IPC分类号： H02M3/158 , H02M1/36
CPC分类号： H02M3/1582 , H02M1/36 , H02M3/1584 , H02M2001/0064 , H02M2003/1552
摘要： A method for discontinuous conduction mode operation of a multi-phase DC-to-DC converter includes (a) forward biasing a first inductor being magnetically coupled to a second inductor, (b) reverse biasing the first inductor after forward biasing the first inductor, (c) while reverse biasing the first inductor and before magnitude of current through the first inductor falls to zero, forward biasing the second inductor.

3. 发明授权

US10256031B2 Low-profile coupled inductors with leakage control 有权
公开(公告)号：US10256031B2
公开(公告)日：2019-04-09
申请号：US15945894
申请日：2018-04-05
申请人： Maxim Integrated Products, Inc.
发明人： Michael Warren Baker , Jizheng Qiu , Brett A. Miwa , Alexandr Ikriannikov
IPC分类号： H01F27/24 , H01F17/04 , H01F27/28 , H01F17/06 , H01F27/30 , H01F27/34
摘要： A low-profile coupled inductor includes a magnetic core and first and second windings. The magnetic core includes first and second end flanges, a winding form element, a first outer plate, and a first leakage post. The winding form element is disposed between and connects the first and second end flanges in a first direction. The first outer plate is disposed over and faces the first and second end flanges in a second direction. The first leakage post is disposed between the winding form element and the first outer plate in the second direction. The first winding is wound around the winding form element, between the first end flange and the first leakage post, and the second winding is wound around the winding form element, between the first leakage post and the second end flange. Each of the windings is wound around a common axis extending in the first direction.

4. 发明授权

US10536079B2 DC-to-DC converters capable of discontinuous conduction mode, and associated methods 有权
公开(公告)号：US10536079B2
公开(公告)日：2020-01-14
申请号：US15981058
申请日：2018-05-16
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Justin Michael Burkhart , Michael Warren Baker , Brett A. Miwa
IPC分类号： H02M3/158 , H02M1/36 , H02M3/155 , H02M1/00
摘要： A method for discontinuous conduction mode operation of a multi-phase DC-to-DC converter includes (a) forward biasing a first inductor being magnetically coupled to a second inductor, (b) reverse biasing the first inductor after forward biasing the first inductor, (c) while reverse biasing the first inductor and before magnitude of current through the first inductor falls to zero, forward biasing the second inductor.

5. 发明申请

US20180226186A1 LOW-PROFILE COUPLED INDUCTORS WITH LEAKAGE CONTROL 审中-公开
公开(公告)号：US20180226186A1
公开(公告)日：2018-08-09
申请号：US15945894
申请日：2018-04-05
申请人： Maxim Integrated Products, Inc.
发明人： Michael Warren Baker , Jizheng Qiu , Brett A. Miwa , Alexandr Ikriannikov
IPC分类号： H01F27/28 , H01F27/34 , H01F27/30
CPC分类号： H01F27/2823 , H01F27/306 , H01F27/346
摘要： A low-profile coupled inductor includes a magnetic core and first and second windings. The magnetic core includes first and second end flanges, a winding form element, a first outer plate, and a first leakage post. The winding form element is disposed between and connects the first and second end flanges in a first direction. The first outer plate is disposed over and faces the first and second end flanges in a second direction. The first leakage post is disposed between the winding form element and the first outer plate in the second direction. The first winding is wound around the winding form element, between the first end flange and the first leakage post, and the second winding is wound around the winding form element, between the first leakage post and the second end flange. Each of the windings is wound around a common axis extending in the first direction.

6. 发明申请

US20180205307A1 SYSTEMS AND METHODS FOR REDUCING SWITCH STRESS IN SWITCHED MODE POWER SUPPLIES 审中-公开
公开(公告)号：US20180205307A1
公开(公告)日：2018-07-19
申请号：US15743482
申请日：2016-07-11
申请人： The Governing Council Of The University Of Toronto , Maxim Integrated Products, Inc.
发明人： Nenad Vukadinovic , Aleksandar Prodic , Cory Brent Arnold , Brett A. Miwa , Michael Warren Baker
IPC分类号： H02M1/088 , H02M3/158 , H02M1/14
CPC分类号： H02M1/088 , H02M1/14 , H02M3/158 , H02M2001/0058 , Y02B70/1491
摘要： In various embodiments described in the present disclosure, various methods and systems are introduced, that may reduce and/or eliminate the voltage spikes on the power switches by avoiding operation at zero-ripple duty ratios. In a first aspect, a method for reducing voltage spikes across switches in a multi-level converter is provided, the method comprising: receiving an error value associated with a difference between a measured output voltage and a reference output voltage; determining a target duty cycle value based at least on a control feedback loop adapted to minimize the error value; if the target duty cycle value is equal or approximately equal to one or more critical duty ratio values, controlling the operation of the multi-level converter to operate the multi-level converter with an averaging sequence, the averaging sequence adapted to, on average, result in, or sufficiently approximate, the one or more critical duty ratio values, but not operate at the one or more critical duty ratio values; and generating one or more pulse-width modulated signals to control the operation of the multi-level converter based on at least one of the target duty cycle and the averaging sequence.

7. 发明申请

US20160247627A1 LOW-PROFILE COUPLED INDUCTORS WITH LEAKAGE CONTROL 审中-公开
标题翻译：具有漏电控制功能的低剖面耦合电感
公开(公告)号：US20160247627A1
公开(公告)日：2016-08-25
申请号：US14867942
申请日：2015-09-28
申请人： Maxim Integrated Products, Inc.
发明人： Michael Warren Baker , Jizheng Qui , Brett A. Miwa , Alexandr Ikriannikov
IPC分类号： H01F27/30 , H01F27/28 , H01F27/24
CPC分类号： H01F27/2823 , H01F27/306 , H01F27/346
摘要： A low-profile coupled inductor includes a magnetic core and first and second windings. The magnetic core includes first and second end flanges, a winding form element, a first outer plate, and a first leakage post. The winding form element is disposed between and connects the first and second end flanges in a first direction. The first outer plate is disposed over and faces the first and second end flanges in a second direction. The first leakage post is disposed between the winding form element and the first outer plate in the second direction. The first winding is wound around the winding form element, between the first end flange and the first leakage post, and the second winding is wound around the winding form element, between the first leakage post and the second end flange. Each of the windings is wound around a common axis extending in the first direction.
摘要翻译：低轮廓耦合电感器包括磁芯和第一和第二绕组。磁芯包括第一和第二端部凸缘，绕组形式元件，第一外部板和第一泄漏柱。卷绕形式元件设置在第一和第二端部凸缘之间并且在第一方向上连接第一和第二端部凸缘。第一外板沿第二方向设置在第一和第二端部凸缘上并面向第一和第二端部凸缘。第一泄漏柱在第二方向上设置在卷绕形式元件和第一外板之间。第一绕组缠绕在绕组件元件上，在第一端凸缘和第一泄漏柱之间，并且第二绕组绕第一泄漏柱和第二端凸缘之间缠绕绕组件。每个绕组缠绕在沿第一方向延伸的共同轴线上。

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