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1. 发明授权

US10684669B1 Logic level shifter interface between power domains 有权
公开(公告)号：US10684669B1
公开(公告)日：2020-06-16
申请号：US16049747
申请日：2018-07-30
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Brett A. Miwa
IPC分类号： H03K19/0185 , G06F1/3234 , H03K19/0175 , H03K19/00
摘要： A logic level shifter interface including a string of logic components communicating between a first power domain and a second power domain; a first string of resistive components connecting a first power rail of the first power domain to a first power rail of the second power domain and having a plurality of intermediate first power rails at nodes between adjacent resistive components of the first string of resistive components; and a second string of resistive components connecting a second power rail of the first power domain to a second power rail of the second power domain and having a plurality of intermediate second power rails at nodes between adjacent resistive components of the second string of resistive components, where at least one logic component is powered by an intermediate first power rail of the first string of resistive components and an intermediate second power rail of the second string of resistive components.

2. 发明授权

US09966853B2 Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode 有权
公开(公告)号：US09966853B2
公开(公告)日：2018-05-08
申请号：US15283915
申请日：2016-10-03
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Justin Michael Burkhart , Brett A. Miwa
IPC分类号： H02M3/158 , H02M1/00
CPC分类号： H02M3/1584 , H02M2001/0064
摘要： The present disclosure eliminates the unwanted conduction of the body diode of the low side switch or the unwanted conduction of the low side switch in coupled phases of DC-DC converters operating in DCM to increase efficiency. Specifically, in one implementation, by detecting strong or weak coupling, the present disclosure eliminates body diode conduction in strong coupling by turning on the low side switch and eliminates negative body diode current in weak coupling by turning off the low side switch. Further, for multiphase switching DC-DC converters with coupled inductors operating at light load (i.e., in DCM), when a high side switch of a first phase is turned on, the body diode of a low side switch of a second phase is adaptively bypassed if needed, blocked by specific design, or prevented from conducting by reducing forward voltage across the body diode.

3. 发明授权

US10734904B2 Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode 有权
公开(公告)号：US10734904B2
公开(公告)日：2020-08-04
申请号：US16388310
申请日：2019-04-18
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Justin Michael Burkhart , Brett A. Miwa
IPC分类号： H02M3/158 , H02M1/00
摘要： A multiphase DC-DC converter includes a coupled inductor, N phases of the multiphase DC-DC converter, and a controller, where N is an integer greater than 2. The coupled inductor includes a plurality of inductors. Each inductor is coupled to two neighboring inductors or to rest of the inductors. The N phases of the multiphase DC-DC converter are respectively connected to the plurality of inductors. The controller operates the multiphase DC-DC converter in continuous conduction mode and in discontinuous conduction mode. Body diodes of switches in the N phases do not conduct when the multiphase DC-DC converter operates in discontinuous conduction mode.

4. 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.

5. 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.

6. 发明申请

US20140062433A1 MULTIPHASE SWITCHING CONVERTERS OPERATING OVER WIDE LOAD RANGES 有权
标题翻译：多相开关转换器在宽负载范围内工作
公开(公告)号：US20140062433A1
公开(公告)日：2014-03-06
申请号：US13930760
申请日：2013-06-28
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Serhii M. Zhak , Brett A. Miwa
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/1584 , H02M2003/1586
摘要： A system includes a multi-phase switching converter and a converter control module. The multi-phase switching converter receives an input voltage and that supplies an output voltage to a load via a plurality of phases. Each phase includes a plurality of switches, an on-time generator module that determines an on-time of the switches, and a switch control module that controls a switching frequency of the switches based on the on-time and a clock signal, and an inductance that connects the switches to the load. The converter control module varies the switching frequency without varying the on-time or varies the on-time without varying the switching frequency when current through the load varies.
摘要翻译：一种系统包括多相开关转换器和转换器控制模块。多相开关变换器接收输入电压，并通过多个相向负载提供输出电压。每相包括多个开关，确定开关导通时间的导通时间发生器模块，以及基于导通时间和时钟信号来控制开关的开关频率的开关控制模块，以及将开关连接到负载的电感。转换器控制模块在不改变导通时间的情况下改变开关频率，或者在电流通过负载变化时改变导通时间而不改变开关频率。

7. 发明授权

US10326369B2 Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode 有权
公开(公告)号：US10326369B2
公开(公告)日：2019-06-18
申请号：US15972381
申请日：2018-05-07
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Justin Michael Burkhart , Brett A. Miwa
IPC分类号： H02M3/158 , H02M1/00
摘要： A converter includes first and second coupled inductors. A first phase includes first high side and low side switches connected to the first inductor. A second phase includes second high side and low side switches connected to the second inductor. In discontinuous conduction mode, the controller determines, in response to the first high side switch being turned on and the second low side switch being turned off, that coupling between the first and second inductors is strong or weak based on whether body diode of the second low side switch will conduct if not prevented from conducting. The controller prevents second low side switch body diode conduction in response to the first high side switch being turned on when the coupling is strong, and does not prevent second low side switch body diode conduction in response to the first high side switch being turned on when the coupling is weak.

8. 发明授权

US09276470B2 Multiphase switching converters operating over wide load ranges 有权
标题翻译：在宽负载范围内工作的多相开关变换器
公开(公告)号：US09276470B2
公开(公告)日：2016-03-01
申请号：US13930760
申请日：2013-06-28
申请人： Maxim Integrated Products, Inc.
发明人： Xin Zhou , Serhii M. Zhak , Brett A. Miwa
IPC分类号： G05F1/00 , H02M3/158
CPC分类号： H02M3/158 , H02M3/1584 , H02M2003/1586
摘要： A system includes a multi-phase switching converter and a converter control module. The multi-phase switching converter receives an input voltage and that supplies an output voltage to a load via a plurality of phases. Each phase includes a plurality of switches, an on-time generator module that determines an on-time of the switches, and a switch control module that controls a switching frequency of the switches based on the on-time and a clock signal, and an inductance that connects the switches to the load. The converter control module varies the switching frequency without varying the on-time or varies the on-time without varying the switching frequency when current through the load varies.
摘要翻译：一种系统包括多相开关转换器和转换器控制模块。多相开关变换器接收输入电压，并通过多个相向负载提供输出电压。每相包括多个开关，确定开关导通时间的导通时间发生器模块，以及基于导通时间和时钟信号来控制开关的开关频率的开关控制模块，以及将开关连接到负载的电感。转换器控制模块在不改变导通时间的情况下改变开关频率，或者在电流通过负载变化时改变导通时间而不改变开关频率。

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