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公开(公告)号：US09755638B2
公开(公告)日：2017-09-05
申请号：US14938702
申请日：2015-11-11
Applicant: Texas Instruments Incorporated
Inventor： Vikrant Dhamdhere , Kyle Schulmeyer , Md. Abidur Rahman
IPC: H03K3/00 , H03K17/687 , H02M1/32
CPC classification number: H03K17/687 , H01L2924/0002 , H02M1/08 , H02M2001/322 , H03K17/063 , H03K19/0016 , H03K2217/0054 , H03K2217/0063 , H03K2217/0072 , H03K2217/0081 , H01L2924/00
Abstract: An output discharge circuit for a load switch may include a capacitor coupled between a power rail of the output discharge circuit and a ground lead, and a diode coupled between a power input of the output discharge circuit and the power rail. The output discharge circuit may charge the capacitor via a current path formed by the diode while power is being supplied to the load switch. When the power supply to the output discharge circuit is turned off, the diode may prevent the capacitor from discharging through the current path, and the stored charge on the capacitor may be used to power the output discharge switch for a period of time after the power supply has been turned off. In this way, the output discharge circuit may continue to discharge the output of the load switch even when power is no longer being supplied to the load switch.
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公开(公告)号：US20160134283A1
公开(公告)日：2016-05-12
申请号：US14938702
申请日：2015-11-11
Applicant: Texas Instruments Incorporated
Inventor： Vikrant Dhamdhere , Kyle Schulmeyer , Md. Abidur Rahman
IPC: H03K17/687 , H02M3/07 , H01L23/528 , H01L27/06 , H01L23/50
CPC classification number: H03K17/687 , H01L2924/0002 , H02M1/08 , H02M2001/322 , H03K17/063 , H03K19/0016 , H03K2217/0054 , H03K2217/0063 , H03K2217/0072 , H03K2217/0081 , H01L2924/00
Abstract: An output discharge circuit for a load switch may include a capacitor coupled between a power rail of the output discharge circuit and a ground lead, and a diode coupled between a power input of the output discharge circuit and the power rail. The output discharge circuit may charge the capacitor via a current path formed by the diode while power is being supplied to the load switch. When the power supply to the output discharge circuit is turned off, the diode may prevent the capacitor from discharging through the current path, and the stored charge on the capacitor may be used to power the output discharge switch for a period of time after the power supply has been turned off. In this way, the output discharge circuit may continue to discharge the output of the load switch even when power is no longer being supplied to the load switch.
Abstract translation: 用于负载开关的输出放电电路可以包括耦合在输出放电电路的电源轨和接地引线之间的电容器和耦合在输出放电电路的电源输入端与电源轨之间的二极管。 当向负载开关供电时，输出放电电路可以通过由二极管形成的电流通路对电容器充电。 当输出放电电路的电源关闭时，二极管可以防止电容器通过电流通路放电，电容器上的存储电荷可以用于在输出电源之后的一段时间内为输出放电开关供电 供应已经关闭。 以这种方式，即使当不再向负载开关供电时，输出放电电路也可以继续放电负载开关的输出。
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3.发明授权公开(公告)号：US09268350B2
公开(公告)日：2016-02-23
申请号：US13962778
申请日：2013-08-08
Applicant: Texas Instruments Incorporated
Inventor： H. Pooya Forghani-zadeh , Vikrant Dhamdhere
CPC classification number: G05F1/573 , G06F1/3296 , H02H9/025 , Y02D10/172
Abstract: A voltage feedback loop employed with a power distribution switch rapidly responds to a predetermined drop in output voltage to increase the resistance of the switch for a predetermined time. After this predetermined time, a current feedback loop controls the resistance until the output voltage recovers, while also isolating the voltage feedback loop from the switch.
Abstract translation: 与功率分配开关一起使用的电压反馈回路快速地响应于输出电压的预定下降以增加开关的电阻达预定时间。 在该预定时间之后，电流反馈环路控制电阻，直到输出电压恢复，同时也将电压反馈回路与开关隔离。
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Patent Agency Ranking
公开(公告)号：US10187055B2
公开(公告)日：2019-01-22
申请号：US15694005
申请日：2017-09-01
Applicant: Texas Instruments Incorporated
Inventor： Vikrant Dhamdhere , Kyle Schulmeyer , Md. Abidur Rahman
Abstract: An output discharge circuit for a load switch may include a capacitor coupled between a power rail of the output discharge circuit and a ground lead, and a diode coupled between a power input of the output discharge circuit and the power rail. The output discharge circuit may charge the capacitor via a current path formed by the diode while power is being supplied to the load switch. When the power supply to the output discharge circuit is turned off, the diode may prevent the capacitor from discharging through the current path, and the stored charge on the capacitor may be used to power the output discharge switch for a period of time after the power supply has been turned off. In this way, the output discharge circuit may continue to discharge the output of the load switch even when power is no longer being supplied to the load switch.
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公开(公告)号：US20170366182A1
公开(公告)日：2017-12-21
申请号：US15694005
申请日：2017-09-01
Applicant: Texas Instruments Incorporated
Inventor： Vikrant Dhamdhere , Kyle Schulmeyer , Md. Abidur Rahman
IPC: H03K17/687 , H02M1/32
CPC classification number: H03K17/687 , H01L2924/0002 , H02M1/08 , H02M2001/322 , H03K17/063 , H03K19/0016 , H03K2217/0054 , H03K2217/0063 , H03K2217/0072 , H03K2217/0081 , H01L2924/00
Abstract: An output discharge circuit for a load switch may include a capacitor coupled between a power rail of the output discharge circuit and a ground lead, and a diode coupled between a power input of the output discharge circuit and the power rail. The output discharge circuit may charge the capacitor via a current path formed by the diode while power is being supplied to the load switch. When the power supply to the output discharge circuit is turned off, the diode may prevent the capacitor from discharging through the current path, and the stored charge on the capacitor may be used to power the output discharge switch for a period of time after the power supply has been turned off. In this way, the output discharge circuit may continue to discharge the output of the load switch even when power is no longer being supplied to the load switch.
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公开(公告)号：US20160036432A1
公开(公告)日：2016-02-04
申请号：US14817666
申请日：2015-08-04
Applicant: Texas Instruments Incorporated
Inventor： Vikrant Dhamdhere , Md Abidur Rahman
CPC classification number: H03K17/302 , G05F1/595
Abstract: This disclosure describes techniques for generating relatively low regulated power supply voltages over a relatively wide range of input voltages. The techniques for generating the regulated voltages may include using at least two different pass transistors to regulate an output voltage of a voltage regulator. Both the turn-on threshold voltage and the maximum drain-to-source voltage rating of the first pass transistor may be greater than the corresponding characteristics of the second pass transistor. Using two different pass transistors with two different turn-on threshold voltages and two different maximum drain-to-source voltage ratings may increase the range of voltages over which a voltage regulator can generate a relatively low output voltage relative to the range of voltages that would be allowable if a single type of pass transistor were used.
Abstract translation: 本公开描述了在相对宽的输入电压范围内产生相对低调节的电源电压的技术。 用于产生调节电压的技术可以包括使用至少两个不同的传输晶体管来调节电压调节器的输出电压。 第一通过晶体管的导通阈值电压和最大漏极 - 源极电压额定值都可以大于第二传输晶体管的相应特性。 使用具有两个不同导通阈值电压和两个不同最大漏极 - 源极电压额定值的两个不同通过晶体管可以增加电压范围，电压调节器可以相对于电压范围产生相对较低的输出电压 如果使用单一类型的传输晶体管是允许的。
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公开(公告)号：US09966941B2
公开(公告)日：2018-05-08
申请号：US14817666
申请日：2015-08-04
Applicant: Texas Instruments Incorporated
Inventor： Vikrant Dhamdhere , Md Abidur Rahman
CPC classification number: H03K17/302 , G05F1/595
Abstract: This disclosure describes techniques for generating relatively low regulated power supply voltages over a relatively wide range of input voltages. The techniques for generating the regulated voltages may include using at least two different pass transistors to regulate an output voltage of a voltage regulator. Both the turn-on threshold voltage and the maximum drain-to-source voltage rating of the first pass transistor may be greater than the corresponding characteristics of the second pass transistor. Using two different pass transistors with two different turn-on threshold voltages and two different maximum drain-to-source voltage ratings may increase the range of voltages over which a voltage regulator can generate a relatively low output voltage relative to the range of voltages that would be allowable if a single type of pass transistor were used.
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8.发明申请公开(公告)号：US20150042302A1
公开(公告)日：2015-02-12
申请号：US13962778
申请日：2013-08-08
Applicant: Texas Instruments Incorporated
Inventor： H. Pooya Forghani-zadeh , Vikrant Dhamdhere
IPC: H02M3/156
CPC classification number: G05F1/573 , G06F1/3296 , H02H9/025 , Y02D10/172
Abstract: A voltage feedback loop employed with a power distribution switch rapidly responds to a predetermined drop in output voltage to increase the resistance of the switch for a predetermined time. After this predetermined time, a current feedback loop controls the resistance until the output voltage recovers, while also isolating the voltage feedback loop from the switch.
Abstract translation: 与功率分配开关一起使用的电压反馈回路快速地响应于输出电压的预定下降以增加开关的电阻达预定时间。 在该预定时间之后，电流反馈环路控制电阻，直到输出电压恢复，同时也将电压反馈回路与开关隔离。
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