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公开(公告)号：US20180115249A1
公开(公告)日：2018-04-26
申请号：US15334855
申请日：2016-10-26
CPC分类号： H02M3/33515 , H02M1/08 , H02M1/32 , H02M3/335 , H02M3/33507 , H02M2001/0009
摘要： Controllers and methods for controlling power supplies are disclosed herein. An example of a controller includes comparison circuitry operable to compare a switching frequency of the controller to a predetermined switching frequency. Voltage measuring circuitry is operable to measure the output voltage of the power supply. Circuitry is operable to disable at least one component in the power supply in response to the switching frequency being less than the predetermined switching frequency and the output voltage being greater than a predetermined output voltage.
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公开(公告)号：US10554200B2
公开(公告)日：2020-02-04
申请号：US16214770
申请日：2018-12-10
IPC分类号： H02M1/42 , H03K5/1532 , H02M1/32
摘要： Peak detection methods, apparatus, and circuits are disclosed. An example peak detector includes a first peak-hold circuit having a first input terminal and a first output terminal, the first peak-hold circuit to determine a first peak of a rectified input voltage at the first input terminal during a first time interval, and to track a second peak of the rectified input voltage during a second time interval, the second time interval distinct from the first time interval, and a second peak-hold circuit having a second input terminal and a second output terminal, the second peak-hold circuit to determine, during the second time interval, a greater of the first peak and the second peak, the first output terminal coupled to the second input terminal, the greater of the first peak and the second peak output at the second output terminal.
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公开(公告)号：US10141852B2
公开(公告)日：2018-11-27
申请号：US15395795
申请日：2016-12-30
摘要： A circuit for use in an LLC converter to control diode conduction time includes a secondary side controller, the secondary side controller configured to monitor voltage, measure a diode conduction time for the LLC converter, in response to determining that the diode conduction time is greater that a target time, increase the on-time for the first switch, and in response to determining that the diode conduction time is less than a target time, decrease the on-time for the first switch.
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公开(公告)号：US20180191253A1
公开(公告)日：2018-07-05
申请号：US15395795
申请日：2016-12-30
CPC分类号： H02M3/33515 , H02M3/33523 , H02M3/33538 , H02M3/33546 , H02M3/3376 , H02M2001/0058
摘要： A circuit for use in an LLC converter to control diode conduction time includes a secondary side controller, the secondary side controller configured to monitor voltage, measure a diode conduction time for the LLC converter, in response to determining that the diode conduction time is greater that a target time, increase the on-time for the first switch, and in response to determining that the diode conduction time is less than a target time, decrease the on-time for the first switch.
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公开(公告)号：US20200007115A1
公开(公告)日：2020-01-02
申请号：US16214770
申请日：2018-12-10
IPC分类号： H03K5/1532 , H02M1/32 , H02M1/42
摘要： Peak detection methods, apparatus, and circuits are disclosed. An example peak detector includes a first peak-hold circuit having a first input terminal and a first output terminal, the first peak-hold circuit to determine a first peak of a rectified input voltage at the first input terminal during a first time interval, and to track a second peak of the rectified input voltage during a second time interval, the second time interval distinct from the first time interval, and a second peak-hold circuit having a second input terminal and a second output terminal, the second peak-hold circuit to determine, during the second time interval, a greater of the first peak and the second peak, the first output terminal coupled to the second input terminal, the greater of the first peak and the second peak output at the second output terminal.
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6.发明授权公开(公告)号：US10218279B2
公开(公告)日：2019-02-26
申请号：US15334855
申请日：2016-10-26
摘要： Controllers and methods for controlling power supplies are disclosed herein. An example of a controller includes comparison circuitry operable to compare a switching frequency of the controller to a predetermined switching frequency. Voltage measuring circuitry is operable to measure the output voltage of the power supply. Circuitry is operable to disable at least one component in the power supply in response to the switching frequency being less than the predetermined switching frequency and the output voltage being greater than a predetermined output voltage.
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