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公开(公告)号：US10594315B2
公开(公告)日：2020-03-17
申请号：US15651897
申请日：2017-07-17
IPC分类号： H03K17/16 , H03K5/1532 , H03K17/082
摘要： An apparatus to monitor and control a switching rate in a switch includes a differentiator circuit including a capacitor and a configurable resistor. The differentiator circuit further includes an input terminal of the capacitors configured to receive a first voltage from a switch and a differentiator node configured to receive a differentiated voltage based on the first voltage. The apparatus includes a peak detector circuit coupled to the differentiator node and configured to detect a peak value of the differentiated voltage. The apparatus further includes a driver circuit coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak value of the differentiated voltage.
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公开(公告)号：US20180183437A1
公开(公告)日：2018-06-28
申请号：US15879231
申请日：2018-01-24
CPC分类号： H03K17/74 , G05F1/46 , H03K5/2472 , H03K2217/0081
摘要： In described examples, bootstrap diode circuits include a first diode having a first diode input coupled to a voltage supply and a first diode output. Described bootstrap diode circuits additionally include a second diode having a second diode input coupled to the first diode output and a second diode output and a plurality of zener diodes coupled in series. The series-coupled zener diodes are further coupled in parallel with the second diode.
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公开(公告)号：US11050420B2
公开(公告)日：2021-06-29
申请号：US15879231
申请日：2018-01-24
摘要： In described examples, bootstrap diode circuits include a first diode having a first diode input coupled to a voltage supply and a first diode output. Described bootstrap diode circuits additionally include a second diode having a second diode input coupled to the first diode output and a second diode output and a plurality of zener diodes coupled in series. The series-coupled zener diodes are further coupled in parallel with the second diode.
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公开(公告)号：US09762219B1
公开(公告)日：2017-09-12
申请号：US15092506
申请日：2016-04-06
IPC分类号： H03K3/00 , H03K5/04 , H03K17/687
CPC分类号： H03K5/04 , H03K17/166
摘要： A switched driver for a power supply includes a high-side switch and a low-side switch coupled to the high-side switch. An output is coupled between the high-side switch and the low-side switch. A switch controller is coupled to either the high-side switch or the low-side switch and has a switch controller input for receiving a switch control signal and an output for controlling a switch. The switch controller initially reduces the resistance of the switch, increases the resistance of the switch, and then reduces the resistance of the switch in response to a signal received at the input.
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公开(公告)号：US10181847B2
公开(公告)日：2019-01-15
申请号：US15636365
申请日：2017-06-28
IPC分类号： H03K3/00 , H03K17/687 , H03K5/1532 , H03K5/08 , H03K3/0233 , H03K5/24 , H02M1/08
摘要： An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage. The apparatus further includes a switch driver coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak amplitude.
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公开(公告)号：US09941876B2
公开(公告)日：2018-04-10
申请号：US14733655
申请日：2015-06-08
CPC分类号： H03K17/74 , G05F1/46 , H03K5/2472 , H03K2217/0081
摘要： Bootstrap diode circuits are disclosed. Example bootstrap diode circuits disclosed herein include a first diode having a first diode input coupled to a voltage supply and a first diode output. Disclosed bootstrap diode circuits additionally include a second diode having a second diode input coupled to the first diode output and a second diode output and a plurality of zener diodes coupled in series. The plurality of series-coupled zener diodes are further coupled in parallel with the second diode.
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公开(公告)号：US10651841B2
公开(公告)日：2020-05-12
申请号：US16247146
申请日：2019-01-14
IPC分类号： H03K3/00 , H03K17/687 , H03K5/1532 , H03K5/08 , H03K3/0233 , H03K5/24 , H02M1/08 , H03K17/082 , H03K17/16
摘要： An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage. The apparatus further includes a switch driver coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak amplitude.
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公开(公告)号：US20190149150A1
公开(公告)日：2019-05-16
申请号：US16247146
申请日：2019-01-14
IPC分类号： H03K17/687 , H02M1/08 , H03K5/24 , H03K5/08 , H03K17/082 , H03K3/0233 , H03K17/16 , H03K5/1532
摘要： An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage. The apparatus further includes a switch driver coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak amplitude.
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公开(公告)号：US20160359483A1
公开(公告)日：2016-12-08
申请号：US14733655
申请日：2015-06-08
CPC分类号： H03K17/74 , G05F1/46 , H03K5/2472 , H03K2217/0081
摘要： Bootstrap diode circuits are disclosed. Example bootstrap diode circuits disclosed herein include a first diode having a first diode input coupled to a voltage supply and a first diode output. Disclosed bootstrap diode circuits additionally include a second diode having a second diode input coupled to the first diode output and a second diode output and a plurality of zener diodes coupled in series. The plurality of series-coupled zener diodes are further coupled in parallel with the second diode.
摘要翻译： 自举二极管电路被公开。 本文公开的示例性自举二极管电路包括具有耦合到电压源的第一二极管输入和第一二极管输出的第一二极管。 公开的自举二极管电路还包括具有耦合到第一二极管输出的第二二极管输入和第二二极管输出以及串联耦合的多个齐纳二极管的第二二极管。 多个串联耦合齐纳二极管进一步与第二二极管并联耦合。
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