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公开(公告)号：US20180011505A1
公开(公告)日：2018-01-11
申请号：US15710883
申请日：2017-09-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
Abstract: A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.
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公开(公告)号：US09804617B2
公开(公告)日：2017-10-31
申请号：US15088612
申请日：2016-04-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
CPC classification number: G05F1/56 , G01R33/0023 , H02M3/156 , H02M3/158 , H02M2001/0045
Abstract: A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.
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公开(公告)号：US20200089263A1
公开(公告)日：2020-03-19
申请号：US16689545
申请日：2019-11-20
Applicant: Texas Instruments Incorporated
Inventor： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
Abstract: A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.
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公开(公告)号：US20150326102A1
公开(公告)日：2015-11-12
申请号：US14272063
申请日：2014-05-07
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Madhan Radhakrishnan , Nitin Agarwal
CPC classification number: H02M3/1588 , H02M1/00 , H02M1/143 , H02M1/15 , H02M3/158 , H02M2001/0003 , H02M2001/0009 , H02M2001/0012 , Y02B70/1466
Abstract: Aspects of the present invention provide a DC/DC converter for use with a supply voltage and operable to drive a load, wherein the DC/DC converter includes a VIN node, a VOUT node, a switching component, a filter, a comparator, a current detecting component and a control component. The VIN node can receive the supply voltage and the VOUT node can provide an output voltage to drive the load. The filter electrically connects the switching component with the VOUT node. The comparator can generate a comparison signal based on the output voltage. The current detecting component can detect when a current in a direction from the filter toward the VOUT node decreases to zero. The control component can control the switching component so as to provide the output voltage at the VOUT node in a discontinuous conduction mode to drive the load.
Abstract translation: 本发明的方面提供了一种用于电源电压并用于驱动负载的DC / DC转换器，其中DC / DC转换器包括VIN节点，VOUT节点，开关组件，滤波器，比较器， 电流检测部件和控制部件。 VIN节点可以接收电源电压，VOUT节点可以提供输出电压来驱动负载。 滤波器将开关组件与VOUT节点电连接。 比较器可以基于输出电压产生比较信号。 电流检测部件可以检测从滤波器朝向VOUT节点的方向上的电流何时降低到零。 控制部件可以控制开关部件，以便以不连续导通模式在VOUT节点处提供输出电压来驱动负载。
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公开(公告)号：US20220129024A1
公开(公告)日：2022-04-28
申请号：US17572692
申请日：2022-01-11
Applicant: Texas Instruments Incorporated
Inventor： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
IPC: G05F1/56
Abstract: A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.
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Patent Agency Ranking
公开(公告)号：US11256276B2
公开(公告)日：2022-02-22
申请号：US16689545
申请日：2019-11-20
Applicant: Texas Instruments Incorporated
Inventor： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
Abstract: A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.
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公开(公告)号：US09716435B2
公开(公告)日：2017-07-25
申请号：US14272063
申请日：2014-05-07
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Madhan Radhakrishnan , Nitin Agarwal
CPC classification number: H02M3/1588 , H02M1/00 , H02M1/143 , H02M1/15 , H02M3/158 , H02M2001/0003 , H02M2001/0009 , H02M2001/0012 , Y02B70/1466
Abstract: Aspects of the present invention provide a DC/DC converter for use with a supply voltage and operable to drive a load, wherein the DC/DC converter includes a VIN node, a VOUT node, a switching component, a filter, a comparator, a current detecting component and a control component. The VIN node can receive the supply voltage and the VOUT node can provide an output voltage to drive the load. The filter electrically connects the switching component with the VOUT node. The comparator can generate a comparison signal based on the output voltage. The current detecting component can detect when a current in a direction from the filter toward the VOUT node decreases to zero. The control component can control the switching component so as to provide the output voltage at the VOUT node in a discontinuous conduction mode to drive the load.
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公开(公告)号：US11940826B2
公开(公告)日：2024-03-26
申请号：US17572692
申请日：2022-01-11
Applicant: Texas Instruments Incorporated
Inventor： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
CPC classification number: G05F1/56 , H02M1/0045 , G01R31/2813 , H02M3/158
Abstract: A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.
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公开(公告)号：US10534387B2
公开(公告)日：2020-01-14
申请号：US15710883
申请日：2017-09-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
Abstract: A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.
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公开(公告)号：US10008656B1
公开(公告)日：2018-06-26
申请号：US15803923
申请日：2017-11-06
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Madhan Radhakrishnan
Abstract: A driver for a piezo actuator includes a transconductance amplifier to produce an output current, a slew rate-controlled amplifier, and a logic gate. The logic gate receives a first control signal to cause the transconductance amplifier to transition to a high impedance mode, receive a compare signal indicative of the amplitude of the output current produced by the transconductance amplifier being less than a threshold, and generate a second control signal to the transconductance amplifier responsive to the first control signal indicating the high impedance mode for the transconductance amplifier and the compare signal indicative of the output current being less than the threshold. A voltage is provided to the slew rate-controlled amplifier upon assertion of the first control signal, wherein the voltage causes the slew rate controlled amplifier to generate a voltage to the transconductance amplifier that causes the transconductance amplifier's output to fall below the threshold.
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