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1. 发明申请

US20220352822A1 SWITCHED-MODE, HIGH BANDWIDTH, HIGH IMPEDANCE POWER SUPPLY 有权
公开(公告)号：US20220352822A1
公开(公告)日：2022-11-03
申请号：US17246619
申请日：2021-05-01
申请人： Keysight Technologies, Inc.
发明人： Peyman Safa , Marko Vulovic
IPC分类号： H02M3/158 , H02M1/00 , G01R19/165 , H03K5/24 , H02M3/00
摘要： A switching converter has a first converter output for connection to a user load and a second converter output for connection to the user load. A first direct current rail power negative terminal has a first positive output and a first negative output connected to the second converter output. A second direct current rail power negative terminal has a second negative output and a second positive output connected to the first positive output. A first switch has a first positive terminal connected to the first positive output, a first negative terminal and a first control terminal. A second switch has a second positive terminal connected to the first negative terminal, a second negative terminal connected to the second negative output, and a second control terminal. A pulse width modulator has a first modulator output connected to the first control terminal, and a second modulator output connected to the second control terminal. An inductance is connected between the first converter output and the first negative terminal. A comparator controls the first pulse width modulator based on a voltage difference between a current measurement voltage that varies based on current through the inductance and a first set point voltage.

2. 发明授权

US08964437B2 Energy dissipating device for DC power supplies 有权
标题翻译：直流电源用耗能装置
公开(公告)号：US08964437B2
公开(公告)日：2015-02-24
申请号：US13741593
申请日：2013-01-15
申请人： Keysight Technologies, Inc.
发明人： Peyman Safa , Michael J. Benes , Marko Vulovic
IPC分类号： H05K7/20 , H02M1/00
CPC分类号： H05K7/2089 , H02H7/12 , H02H9/041
摘要： An energy dissipating device configured to connect to a power supply and to dissipate excess energy from a direct current (DC) rail in response to a change in power supply settings or operating characteristics. The energy dissipating device is connected to the DC rail, which conducts current generated by an AC/DC converter to at least one DC/DC converter. When power demand to the DC/DC converter is reduced, the DC/DC converter generates a supplemental current surge on the DC rail. A rail current monitor monitors the current level on the DC rail and generates the DC rail power signal indicative of the supplemental current surge level generated by the at least one DC/DC converter. The supplemental surge current is used to control dissipative elements connected across the DC rail to modulate a current sink path across the DC rail to dissipate the excess energy from the DC rail.
摘要翻译：一种能量消散装置，被配置为响应于电源设置或操作特性的变化而连接到电源并且从直流（DC）导轨消散多余的能量。能量消耗装置连接到DC导轨，其将由AC / DC转换器产生的电流传导到至少一个DC / DC转换器。当对DC / DC转换器的电力需求降低时，DC / DC转换器在DC轨上产生补充电流浪涌。轨道电流监视器监视直流轨上的当前电平，并产生指示由至少一个DC / DC转换器产生的补充电流浪涌电平的直流轨电功率信号。辅助浪涌电流用于控制跨越直流轨道连接的耗散元件，以调制跨越直流轨道的电流吸收路径，以消散来自直流轨道的多余能量。

3. 发明授权

US11469675B1 Switched-mode, high bandwidth, high impedance power supply 有权
公开(公告)号：US11469675B1
公开(公告)日：2022-10-11
申请号：US17246619
申请日：2021-05-01
申请人： Keysight Technologies, Inc.
发明人： Peyman Safa , Marko Vulovic
IPC分类号： H02M3/158 , H02M1/00 , H02M3/00 , H03K5/24 , G01R19/165
摘要： A switching converter has a first converter output for connection to a user load and a second converter output for connection to the user load. A first direct current rail power negative terminal has a first positive output and a first negative output connected to the second converter output. A second direct current rail power negative terminal has a second negative output and a second positive output connected to the first positive output. A first switch has a first positive terminal connected to the first positive output, a first negative terminal and a first control terminal. A second switch has a second positive terminal connected to the first negative terminal, a second negative terminal connected to the second negative output, and a second control terminal. A pulse width modulator has a first modulator output connected to the first control terminal, and a second modulator output connected to the second control terminal. An inductance is connected between the first converter output and the first negative terminal. A comparator controls the first pulse width modulator based on a voltage difference between a current measurement voltage that varies based on current through the inductance and a first set point voltage.

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