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公开(公告)号：US20170324345A1
公开(公告)日：2017-11-09
申请号：US15148200
申请日：2016-05-06
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Roman STULER
CPC classification number: H02M3/33553 , H02M1/08 , H02M3/3376 , H02M2001/0009 , H02M2001/0058
Abstract: A power conversion circuit includes a high-side MOSFET and a low-side MOSFET. A conduction terminal of the high-side MOSFET is coupled to a conduction terminal of the low-side MOSFET at a half-bridge (HB) circuit node. The high-side MOSFET is switched off. Voltage potential transitions of the HB circuit node are counted while the high-side MOSFET and low-side MOSFET are off. Assertion of a control signal to the low-side MOSFET is postponed for two voltage potential transitions of the HB circuit node after the high-side MOSFET is switched off. The low-side MOSFET is switched off by de-asserting the control signal to the low-side MOSFET. Switching on the high-side MOSFET is postponed for two voltage potential transitions of the HB circuit node after switching off the low-side MOSFET.
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公开(公告)号：US20230223850A1
公开(公告)日：2023-07-13
申请号：US17647631
申请日：2022-01-11
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Karel PTACEK , Roman STULER , Roman RADVAN
CPC classification number: H02M3/158 , H02M1/0029 , H02M1/0009 , H02M1/08 , H03K17/162 , H02M1/0025
Abstract: Switching circuits, half-bridge power converters, and methods for operating a switching circuit including a switching transistor coupled to a load. The method includes applying, with a driver, a gate voltage to the switching transistor. The method also includes generating, with a feedback capacitor, a feedback current based on a change in a voltage sensed at a drain terminal of the switching transistor when the switching transistor turns on. The method further includes applying the feedback current to the driver to limit the gate voltage applied to the switching transistor. The method also includes adjusting, with a controller, a switching slew rate of the switching transistor by draining an amount of the feedback current.
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公开(公告)号：US20210328499A1
公开(公告)日：2021-10-21
申请号：US16852766
申请日：2020-04-20
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Vaclav DRDA , Roman STULER
Abstract: Adjusting slope compensation. At least one example embodiment is a method including: operating a switching power converter comprising a charge control switch, the charge control switch configured to control power flow through the switching power converter, and the operating by a circuit controller; measuring, by the circuit controller, an attribute of duty cycle of a first period of the charge control switch; measuring, by the circuit controller, an attribute of duty cycle of a second period of the charge control switch; measuring, by the circuit controller, an attribute of duty cycle of a third period of the charge control switch; determining, by the circuit controller, that the switching power converter is experiencing subharmonic oscillation based on the first, second, and third attributes of duty cycle; and changing, by the circuit controller, an attribute of slope compensation responsive to the determining that the switching power supply is experiencing subharmonic oscillation.
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Patent Agency Ranking
公开(公告)号：US20200044569A1
公开(公告)日：2020-02-06
申请号：US16597594
申请日：2019-10-09
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Vaclav DRDA , Roman STULER , Roman MAZGUT
Abstract: In one embodiment, a resonant converter circuit may be formed to include a light-load control circuit that forms a sequence to control one or more transistors wherein the sequence includes a drive interval having a drive pattern to drive the one or more transistors and a subsequent Off-interval wherein the one or more transistors are switched. A first circuit of the light-load control circuit may be configured to form the drive pattern as a repeated sequence of a pulse set that sequentially enables the one or more transistors with a base set followed by a number of non-switching intervals wherein each non-switching interval is a period of a signal formed in response to driving the one or more transistors with the base set.
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公开(公告)号：US20180337607A1
公开(公告)日：2018-11-22
申请号：US15600282
申请日：2017-05-19
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Vaclav DRDA , Roman STULER , Roman MAZGUT
Abstract: In one embodiment, a resonant converter circuit may be formed to include a light-load control circuit that forms a sequence to control one or more transistors wherein the sequence includes a drive interval having a drive pattern to drive the one or more transistors and a subsequent Off-interval wherein the one or more transistors are switched. A first circuit of the light-load control circuit may be configured to form the drive pattern as a repeated sequence of a pulse set that sequentially enables the one or more transistors with a base set followed by a number of non-switching intervals wherein each non-switching interval is a period of a signal formed in response to driving the one or more transistors with the base set.
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公开(公告)号：US20190386558A1
公开(公告)日：2019-12-19
申请号：US16010578
申请日：2018-06-18
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Vaclav DRDA , Roman STULER
Abstract: Resonant power converters. Example embodiments are integrated circuit controllers for a resonant power converter, the controllers including: a frequency controller configured to control frequency of signals driven to a high-side gate terminal and a low-side gate terminal; a fault detector configured to sense an overcurrent condition of a primary winding of the resonant power converter, and to assert an overcurrent signal responsive to the overcurrent condition; a feedback controller that, during periods of time when the overcurrent signal is de-asserted, is configured to sense a signal representative of output voltage by way of the feedback terminal and to create an intermediate signal; and the feedback controller further configured to, during periods when the overcurrent signal is asserted, modify the intermediate signal to increase the frequency of the signals driven to the high-side gate terminal and the low-side gate terminal.
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公开(公告)号：US20180131285A1
公开(公告)日：2018-05-10
申请号：US15867212
申请日：2018-01-10
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Roman STULER
CPC classification number: H02M3/33553 , H02M1/08 , H02M3/3376 , H02M2001/0009 , H02M2001/0058
Abstract: A power conversion circuit includes a high-side MOSFET and a low-side MOSFET. A conduction terminal of the high-side MOSFET is coupled to a conduction terminal of the low-side MOSFET at a half-bridge (HB) circuit node. The high-side MOSFET is switched off. Voltage potential transitions of the HB circuit node are counted while the high-side MOSFET and low-side MOSFET are off. Assertion of a control signal to the low-side MOSFET is postponed for two voltage potential transitions of the HB circuit node after the high-side MOSFET is switched off. The low-side MOSFET is switched off by de-asserting the control signal to the low-side MOSFET. Switching on the high-side MOSFET is postponed for two voltage potential transitions of the HB circuit node after switching off the low-side MOSFET.
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公开(公告)号：US20170077798A1
公开(公告)日：2017-03-16
申请号：US15042357
申请日：2016-02-12
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Vaclav DRDA , Roman STULER
CPC classification number: H02M1/32 , H02M3/157 , H02M3/33515 , H02M3/3376 , H02M7/529 , H02M2001/0012 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A power conversion circuit is provided. A power level of the power conversion circuit is determined by taking a first sample of a voltage potential of a resonant capacitor at a first time. A second sample of the voltage potential of the resonant capacitor voltage is taken at a second time. An electric current is determined based on the first sample and second sample.
Abstract translation: 提供电源转换电路。 功率转换电路的功率电平是通过在第一时间获取谐振电容器的电压电位的第一采样来确定的。 第二次采集谐振电容电压的电压电位的第二个样本。 基于第一样品和第二样品确定电流。
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