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1.发明申请RESONANT CONVERTER, CONTROL CIRCUIT AND ASSOCIATED CONTROL METHOD WITH ADAPTIVE DEAD-TIME ADJUSTMENT 有权谐波转换器，控制电路及相关停电调整的相关控制方法公开(公告)号：US20160087543A1
公开(公告)日：2016-03-24
申请号：US14857405
申请日：2015-09-17
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yiqing Jin , Yuedong Chen , Sicong Lin
IPC: H02M3/335
CPC classification number: H02M3/337 , H02M1/38 , H02M3/335 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A resonant converter has a switching circuit having a first switch and a second switch, a control circuit and a resonant circuit. The control circuit has a slope sensing circuit providing a slope sense signal based on a voltage variation at the common node of the first switch and the second switch, a slope judge circuit providing a slope judge signal, and a turn-ON control circuit providing a first reset signal to adjust a first dead-time period from turning OFF the first switch to turning ON the second switch based on the slope judge signal, the slope signal, and a current flowing through the resonant tank, and providing a second reset signal to adjust a second dead-time period from turning OFF the second switch to turning ON the first switch based on the slope judge signal, the slope signal, and the current flowing through the resonant tank.
Abstract translation: 谐振转换器具有开关电路，其具有第一开关和第二开关，控制电路和谐振电路。 控制电路具有斜坡检测电路，该斜坡检测电路基于第一开关和第二开关的公共节点处的电压变化提供斜率检测信号，斜率判断电路提供斜率判断信号，以及导通控制电路， 第一复位信号，以基于所述斜率判断信号，所述斜率信号和流过所述谐振回路的电流来调节第一死区时间段，使第一开关断开以接通所述第二开关，以及将第二复位信号提供给 基于斜率判断信号，斜率信号和流过谐振回路的电流，调整第二死区时间，使第二开关断开，使第一开关接通。
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公开(公告)号：US11277071B2
公开(公告)日：2022-03-15
申请号：US17029533
申请日：2020-09-23
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yiqing Jin , Siran Wang , Hantao Lin
Abstract: A control circuit used in a resonant converter with a switching circuit and a resonant circuit is provided, the switching circuit has a high side transistor and a low side transistor, the resonant circuit has a resonant capacitor and a resonant inductor. The control circuit includes: a calculating module used to generate an output current calculating value based on a voltage across the resonant capacitor and a correction signal at an off moment of the high side transistor; a comparing module used to compare the output current calculating value with a burst mode threshold value and generate a burst mode control signal by comparing the output current calculating value with the burst mode threshold value; and a switching control module used to control the resonant converter to work in a burst mode or a normal mode based on the burst mode control signal.
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3.发明授权公开(公告)号：US11239743B2
公开(公告)日：2022-02-01
申请号：US16943384
申请日：2020-07-30
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yuedong Chen , Yiqing Jin , Zhiheng Hu
Abstract: A switching mode power supply preventing false triggering of an over current protection due to a surge pulse. The switching mode power supply has a switch and an inductor. An inductor current flows through the inductor. The switching mode power supply turns off the switch and meanwhile starts timing for a preset period of time when the inductor current is larger than a preset value. The switch is kept off during the preset period of time and is then turned on when the preset period of time expires.
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公开(公告)号：US20210111620A1
公开(公告)日：2021-04-15
申请号：US17029533
申请日：2020-09-23
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yiqing Jin , Siran Wang , Hantao Lin
Abstract: A control circuit used in a resonant converter with a switching circuit and a resonant circuit is provided, the switching circuit has a high side transistor and a low side transistor, the resonant circuit has a resonant capacitor and a resonant inductor. The control circuit includes: a calculating module used to generate an output current calculating value based on a voltage across the resonant capacitor and a correction signal at an off moment of the high side transistor; a comparing module used to compare the output current calculating value with a burst mode threshold value and generate a burst mode control signal by comparing the output current calculating value with the burst mode threshold value; and a switching control module used to control the resonant converter to work in a burst mode or a normal mode based on the burst mode control signal.
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5.发明授权Resonant converter, control circuit and associated control method with adaptive dead-time adjustment 有权谐振转换器，控制电路及相应的控制方法，具有自适应死区时间调整功能公开(公告)号：US09525358B2
公开(公告)日：2016-12-20
申请号：US14857405
申请日：2015-09-17
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yiqing Jin , Yuedong Chen , Sicong Lin
CPC classification number: H02M3/337 , H02M1/38 , H02M3/335 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A resonant converter has a switching circuit having a first switch and a second switch, a control circuit and a resonant circuit. The control circuit has a slope sensing circuit providing a slope sense signal based on a voltage variation at the common node of the first switch and the second switch, a slope judge circuit providing a slope judge signal, and a turn-ON control circuit providing a first reset signal to adjust a first dead-time period from turning OFF the first switch to turning ON the second switch based on the slope judge signal, the slope signal, and a current flowing through the resonant tank, and providing a second reset signal to adjust a second dead-time period from turning OFF the second switch to turning ON the first switch based on the slope judge signal, the slope signal, and the current flowing through the resonant tank.
Abstract translation: 谐振转换器具有开关电路，其具有第一开关和第二开关，控制电路和谐振电路。 控制电路具有斜坡检测电路，该斜坡检测电路基于第一开关和第二开关的公共节点处的电压变化提供斜率检测信号，斜率判断电路提供斜率判断信号，以及导通控制电路， 第一复位信号，以基于所述斜率判断信号，所述斜率信号和流过所述谐振回路的电流来调节第一死区时间段，使第一开关断开以接通所述第二开关，以及将第二复位信号提供给 基于斜率判断信号，斜率信号和流过谐振回路的电流，调整第二死区时间，使第二开关断开，使第一开关接通。
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Patent Agency Ranking
公开(公告)号：US09479046B2
公开(公告)日：2016-10-25
申请号：US14222451
申请日：2014-03-21
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Sicong Lin , Yiqing Jin , Yuancheng Ren , Junming Zhang
CPC classification number: H02M1/4225 , H02M1/40 , H02M1/42 , Y02B70/126 , Y02P80/112
Abstract: A PFC circuit includes: a switching circuit having a power switch; an on time control circuit for controlling an on time period of the power switch; a first off time control circuit; a second off time control circuit; and a logic circuit selectively controls the power switch working under CCM or DCM; when working under CCM, the first off time control circuit controls an off time period of the power switch and when working under DCM, the second off time control circuit controls the off time period of the power switch.
Abstract translation: PFC电路包括：具有电源开关的开关电路; 用于控制电源开关的接通时间段的准时控制电路; 第一关断时间控制电路; 第二关闭时间控制电路; 并且逻辑电路选择性地控制在CCM或DCM下工作的电源开关; 当在CCM下工作时，第一关闭时间控制电路控制电源开关的关闭时间段，并且在DCM下工作时，第二关断时间控制电路控制电源开关的关闭时间段。
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公开(公告)号：US20160087544A1
公开(公告)日：2016-03-24
申请号：US14859070
申请日：2015-09-18
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yiqing Jin , Yuedong Chen , Sicong Lin
IPC: H02M3/335
CPC classification number: H02M3/337 , H02M1/32 , H02M3/156 , H02M3/157 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A switching mode power supply with resonant technology. The switching mode power supply current uses current polarity evaluation to avoid capacitive mode by triggering the capacitive protection if the evaluation indicates that the system will enter capacitive mode.
Abstract translation: 具有谐振技术的开关电源。 如果评估指示系统进入电容模式，则开关模式电源电流使用电流极性评估来避免容性模式触发电容性保护。
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8.发明申请公开(公告)号：US20210036506A1
公开(公告)日：2021-02-04
申请号：US16943384
申请日：2020-07-30
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yuedong Chen , Yiqing Jin , Zhiheng Hu
Abstract: A switching mode power supply preventing false triggering of an over current protection due to a surge pulse. The switching mode power supply has a switch and an inductor. An inductor current flows through the inductor. The switching mode power supply turns off the switch and meanwhile starts timing for a preset period of time when the inductor current is larger than a preset value. The switch is kept off during the preset period of time and is then turned on when the preset period of time expires.
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公开(公告)号：US09634572B2
公开(公告)日：2017-04-25
申请号：US14859070
申请日：2015-09-18
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Yiqing Jin , Yuedong Chen , Sicong Lin
CPC classification number: H02M3/337 , H02M1/32 , H02M3/156 , H02M3/157 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A switching mode power supply with resonant technology. The switching mode power supply current uses current polarity evaluation to avoid capacitive mode by triggering the capacitive protection if the evaluation indicates that the system will enter capacitive mode.
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公开(公告)号：US20140285163A1
公开(公告)日：2014-09-25
申请号：US14222451
申请日：2014-03-21
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Sicon Lin , Yiqing Jin , Yuancheng Ren , Junming Zhang
IPC: H02M1/42
CPC classification number: H02M1/4225 , H02M1/40 , H02M1/42 , Y02B70/126 , Y02P80/112
Abstract: A PFC circuit includes: a switching circuit having a power switch; an on time control circuit for controlling an on time period of the power switch; a first off time control circuit; a second off time control circuit; and a logic circuit selectively controls the power switch working under CCM or DCM; when working under CCM, the first off time control circuit controls an off time period of the power switch and when working under DCM, the second off time control circuit controls the off time period of the power switch.
Abstract translation: PFC电路包括：具有电源开关的开关电路; 用于控制电源开关的接通时间段的准时控制电路; 第一关断时间控制电路; 第二关闭时间控制电路; 并且逻辑电路选择性地控制在CCM或DCM下工作的电源开关; 当在CCM下工作时，第一关闭时间控制电路控制电源开关的关闭时间段，并且在DCM下工作时，第二关断时间控制电路控制电源开关的关闭时间段。
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