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1. 发明申请

US20220129024A1 INDUCTOR DETECTION 有权
公开(公告)号：US20220129024A1
公开(公告)日：2022-04-28
申请号：US17572692
申请日：2022-01-11
申请人： Texas Instruments Incorporated
发明人： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
IPC分类号： G05F1/56
摘要： 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.

2. 发明授权

US11256276B2 Inductor detection 有权
公开(公告)号：US11256276B2
公开(公告)日：2022-02-22
申请号：US16689545
申请日：2019-11-20
申请人： Texas Instruments Incorporated
发明人： Sachin Sudhir Turkewadikar , Nitin Agarwal , Madhan Radhakrishnan
IPC分类号： G05F1/56 , H02M3/158 , H02M1/00
摘要： 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.

3. 发明授权

US11139648B2 Fail-safe for shared pin 有权
公开(公告)号：US11139648B2
公开(公告)日：2021-10-05
申请号：US16227656
申请日：2018-12-20
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Sumit Dubey , Nitin Agarwal
IPC分类号： H02H3/20
摘要： An integrated circuit (IC) provides an improved fail-safe signal to a circuit sharing a fail-safe pin at which the voltage can be greater than the voltage of an upper rail. The IC includes a first circuit segment that receives a first fail-safe signal and a first power-down signal and provides an intermediate signal, wherein the first fail-safe signal indicates when the voltage at the fail-safe pin is greater than the upper rail and the first power-down signal indicates when the module is powered down, and a second circuit segment connected to receive the intermediate signal and to provide the improved fail-safe signal to the module.

4. 发明授权

US10917090B1 Multi-channel multiplexer 有权
公开(公告)号：US10917090B1
公开(公告)日：2021-02-09
申请号：US16700444
申请日：2019-12-02
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Nitin Agarwal , Kunal Suresh Karanjkar , Venkata Ramanan R
IPC分类号： H03K17/693 , H03K17/10 , H03K17/00 , H03F3/72
摘要： A circuit includes a first switch assembly having a first input node and a first output node, and a second switch assembly having a second input node and a second output node. The circuit further includes a third switch assembly an operational amplifier, and a buffer. The third switch assembly has a third input node and a third output node. The third input node is coupled to the second output node, and the third output node is coupled to the first output node. The buffer has a buffer input and a buffer output. The buffer input is coupled to an input stage of the operational amplifier. The buffer output is coupled to the third switch assembly.

5. 发明授权

US09716435B2 Minimum on-time control for low load DC/DC converter 有权
公开(公告)号：US09716435B2
公开(公告)日：2017-07-25
申请号：US14272063
申请日：2014-05-07
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Madhan Radhakrishnan , Nitin Agarwal
IPC分类号： H02M1/00 , H02M1/14 , H02M3/158 , H02M1/15
CPC分类号： H02M3/1588 , H02M1/00 , H02M1/143 , H02M1/15 , H02M3/158 , H02M2001/0003 , H02M2001/0009 , H02M2001/0012 , Y02B70/1466
摘要： 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.

6. 发明申请

US20150207405A1 INPUT OFFSET CONTROL 有权
标题翻译：输入偏移控制
公开(公告)号：US20150207405A1
公开(公告)日：2015-07-23
申请号：US14162470
申请日：2014-01-23
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Nitin Agarwal
IPC分类号： H02M3/10 , H03M1/70
CPC分类号： H03M1/70 , H02M3/157 , H03F3/45183 , H03F2203/45101 , H03F2203/45586 , H03K5/2481
摘要： Several circuits and methods for input offset control are disclosed. In an embodiment, a input offset control circuit includes a first input circuit and a second input circuit. The first input circuit is configured to operate within first common mode voltage range, configured to provide first input current, and configured to vary the first input current upon or subsequent to a variation of a voltage level in the first common mode voltage range. The second input circuit is coupled to the first input circuit and is configured to operate within second common mode voltage range, configured to provide a second input current, and configured to vary the second input current based on variation of the voltage level in the second common mode voltage range. Upon or subsequent to increasing the common mode voltage, the first input current is reduced and the second input current is increased.
摘要翻译：公开了用于输入偏移控制的若干电路和方法。在一个实施例中，输入偏移控制电路包括第一输入电路和第二输入电路。第一输入电路被配置为在第一共模电压范围内工作，被配置为提供第一输入电流，并且被配置为在第一共模电压范围内的电压电平的变化或之后改变第一输入电流。第二输入电路耦合到第一输入电路，并且被配置为在第二共模电压范围内工作，被配置为提供第二输入电流，并且被配置为基于第二公共电压中的电压电平的变化来改变第二输入电流模式电压范围。在增加共模电压或随后增加共模电压时，第一输入电流减小并且第二输入电流增加。

7. 发明申请

US20230006663A1 COMPARATOR LOW POWER RESPONSE 有权
公开(公告)号：US20230006663A1
公开(公告)日：2023-01-05
申请号：US17931557
申请日：2022-09-13
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Nitin Agarwal , Venkat Ramakrishna Saripalli , Venkata Ramanan R
IPC分类号： H03K5/24 , H03F1/02 , H03F3/45
摘要： In described examples, an amplifier can be arranged to generate a first stage output signal in response to an input signal. The input signal can be coupled to control a first current coupled from a first current source through a common node to generate the first stage output signal. A replica circuit can be arranged to generate a replica load signal in response to the input signal and in response to current received from the common node. A current switch can be arranged to selectively couple a second current from a second current source to the common node in response to the replica load signal.

8. 发明授权

US10972086B2 Comparator low power response 有权
公开(公告)号：US10972086B2
公开(公告)日：2021-04-06
申请号：US16378526
申请日：2019-04-08
申请人： Texas Instruments Incorporated
发明人： Nitin Agarwal , Venkat Ramakrishna Saripalli , Venkata Ramanan R
IPC分类号： H03K5/22 , H03K5/24 , H03F1/02 , H03F3/45
摘要： In described examples, an amplifier can be arranged to generate a first stage output signal in response to an input signal. The input signal can be coupled to control a first current coupled from a first current source through a common node to generate the first stage output signal. A replica circuit can be arranged to generate a replica load signal in response to the input signal and in response to current received from the common node. A current switch can be arranged to selectively couple a second current from a second current source to the common node in response to the replica load signal.

9. 发明授权

US10763832B2 Precision oscillators that use imprecise components 有权
公开(公告)号：US10763832B2
公开(公告)日：2020-09-01
申请号：US15853015
申请日：2017-12-22
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Aniruddha Roy , Nitin Agarwal , Rajavelu Thinakaran
IPC分类号： H03K3/0231 , H03K4/502 , H03K3/011
摘要： Trimming components within an oscillator comprising: a trim-capable current source, wherein the trim-capable current source comprises a trimmable resistor and a trimmable current component, a comparator comprising a first input terminal that couples to the trim-capable current source and the second input terminal that couples to a reference voltage source, a switch coupled to the first input terminal and the trim-capable current source, and a trim-capable capacitor coupled to the switch, wherein the switch is coupled between the trim-capable capacitor and the trim-capable current source.

10. 发明申请

US20160087518A1 CIRCUIT FOR DRIVER CONTROL OF SWITCHING CIRCUIT 有权
标题翻译：开关电路驱动控制电路
公开(公告)号：US20160087518A1
公开(公告)日：2016-03-24
申请号：US14492569
申请日：2014-09-22
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Nitin Agarwal , Sachin Sudhir Turkewadikar
IPC分类号： H02M1/00 , H02M3/158
CPC分类号： H02M1/00 , H02M3/158 , H02M3/1588 , H02M2001/0003 , H02M2001/0029 , H03K17/04206 , H03K17/165 , Y02B70/1466
摘要： Several circuits and methods for driver control of a switching circuit are disclosed. In an embodiment, a circuit for driver control of a switching circuit includes a driver circuit and a control circuit. The driver circuit is capable of being coupled to the switching circuit. The switching circuit includes a first switch and a second switch. The driver circuit is configured to control a conductive state of the switching circuit by facilitating an alternate state change of the first switch and the second switch. The control circuit is coupled to the driver circuit and is configured to detect a noise signal during a state change of the first switch. The control circuit is further configured to control the driver circuit to thereby slow down the state change of the first switch.
摘要翻译：公开了用于开关电路的驱动器控制的几种电路和方法。在一个实施例中，用于开关电路的驱动器控制的电路包括驱动器电路和控制电路。驱动电路能够耦合到开关电路。开关电路包括第一开关和第二开关。驱动电路被配置为通过促进第一开关和第二开关的替代状态改变来控制开关电路的导通状态。控制电路耦合到驱动电路，并被配置为在第一开关的状态改变期间检测噪声信号。控制电路还被配置为控制驱动器电路，从而减慢第一开关的状态变化。

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