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公开(公告)号：US10511226B1
公开(公告)日：2019-12-17
申请号：US16352610
申请日：2019-03-13
Applicant: Texas Instruments Incorporated
Inventor： Sanjay Gurlahosur , Karen Huimun Chan
Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to regulate a switched mode power supply. An example power converter includes a first comparator, a ramp generator coupled to a first input of the first comparator, and a current balance circuit coupled to the ramp generator, the current balance circuit including a transistor including a first current terminal, a second current terminal, and a gate, a multiplier circuit coupled to the first current terminal, a second comparator coupled to the gate, a first current source coupled to the first current terminal and the multiplier circuit, and a second current source coupled to the second current terminal and the second comparator.
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公开(公告)号：US11545939B2
公开(公告)日：2023-01-03
申请号：US16732235
申请日：2019-12-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sanjay Gurlahosur , Karen Chan
Abstract: Methods, apparatus, and systems are disclosed that adjust transient response in a multistage system. An example apparatus includes a first filter including an input configured to be coupled to an output of a master stage, an amplifier, the first input of the amplifier coupled to the input of the first filter, the second input of the amplifier coupled to the output of the first filter, a second filter, the input of the second filter coupled to the output of the amplifier, and a comparator, the first input of the comparator coupled to the input of the first filter circuit, the second input of the comparator coupled to the output of the amplifier, the third input of the comparator coupled to the output of the second filter, and the output of the comparator adapted to be coupled to a latch.
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Patent Agency Ranking
公开(公告)号：US11196286B2
公开(公告)日：2021-12-07
申请号：US16553966
申请日：2019-08-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sanjay Gurlahosur
Abstract: The present disclosure relates to communicating fault event information between power supply devices. In an example, a fault event communication system can include a comparator that can be coupled to a node that can have a shared bus voltage established by current sharing circuitry. The comparator can compare the shared bus voltage to a reference voltage and output a fault alert signal based on the comparison to alert a respective power supply device that another power supply device is experiencing a fault event. The system can include logic circuitry that can initiate a timer for a time interval in response to receiving the fault alert signal. The logic circuitry can determine a type of fault event at the respective power supply device based on the fault alert signal and duration of time that has elapsed since initiating the timer.
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公开(公告)号：US20150288178A1
公开(公告)日：2015-10-08
申请号：US14672420
申请日：2015-03-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sanjay Gurlahosur , Rajdeep Mukhopadhyay
CPC classification number: H02J1/102 , Y10T307/675
Abstract: A power controller that includes first and second buck controllers and a power balancer. The first buck controller is configured to receive a first power rail at a first voltage and generate a first output signal. The second buck controller is configured to receive a second power rail at a second voltage and generate a second output signal. The power balancer is configured to receive an average current for the output signals and generate, based on the average current, a reference voltage to be received by the second buck controller. The output signals are combined to create a output power rail such that the first buck controller functions as a voltage source for the output power rail and the second buck controller controls, based on the reference voltage, an amount of current in the output power rail received from each of the buck controllers.
Abstract translation: 一个功率控制器，包括第一和第二降压控制器和电源平衡器。 第一降压控制器被配置为以第一电压接收第一电力轨并产生第一输出信号。 第二降压控制器被配置为以第二电压接收第二电力轨并产生第二输出信号。 功率平衡器被配置为接收输出信号的平均电流，并且基于平均电流生成要由第二降压控制器接收的参考电压。 输出信号被组合以产生输出电力轨，使得第一降压控制器用作输出电力轨的电压源，而第二降压控制器基于参考电压控制所接收的输出功率轨中的电流量 从每个降压控制器。
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公开(公告)号：US10454373B2
公开(公告)日：2019-10-22
申请号：US15810984
申请日：2017-11-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sanjay Gurlahosur
IPC: H02M3/158
Abstract: A multi-phase buck voltage regulator includes first and second buck converters, first and second low pass filters, and a current balancing loop circuit. The first buck converter includes a first pair of power transistors and a first switch node. The second buck converter includes a second pair of power transistors and a second switch node. The low pass filters are coupled to their respective switch nodes. The current balancing loop circuit receives a filtered output of each filter. The current balancing loop generates a current balancing current signal to control a gain of a first voltage-to-current converter for the second buck converter. The duty cycle of the second buck converter is thereby adjusted, which in turn adjusts a current of the second buck converter to become closer to a current of the first buck converter.
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公开(公告)号：US20200266769A1
公开(公告)日：2020-08-20
申请号：US16732235
申请日：2019-12-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sanjay Gurlahosur , Karen Chan
Abstract: Methods, apparatus, and systems are disclosed that adjust transient response in a multistage system. An example apparatus includes a first filter including an input configured to be coupled to an output of a master stage, an amplifier, the first input of the amplifier coupled to the input of the first filter, the second input of the amplifier coupled to the output of the first filter, a second filter, the input of the second filter coupled to the output of the amplifier, and a comparator, the first input of the comparator coupled to the input of the first filter circuit, the second input of the comparator coupled to the output of the amplifier, the third input of the comparator coupled to the output of the second filter, and the output of the comparator adapted to be coupled to a latch.
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公开(公告)号：US10476266B2
公开(公告)日：2019-11-12
申请号：US14672420
申请日：2015-03-30
Applicant: Texas Instruments Incorporated
Inventor： Sanjay Gurlahosur , Rajdeep Mukhopadhyay
IPC: H02J1/10
Abstract: A power controller that includes first and second buck controllers and a power balancer. The first buck controller is configured to receive a first power rail at a first voltage and generate a first output signal. The second buck controller is configured to receive a second power rail at a second voltage and generate a second output signal. The power balancer is configured to receive an average current for the output signals and generate, based on the average current, a reference voltage to be received by the second buck controller. The output signals are combined to create a output power rail such that the first buck controller functions as a voltage source for the output power rail and the second buck controller controls, based on the reference voltage, an amount of current in the output power rail received from each of the buck controllers.
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