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公开(公告)号：US10985763B2
公开(公告)日：2021-04-20
申请号：US16991072
申请日：2020-08-12
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qunying Li , Shanmuganand Chellamuthu , Kemal Safak Demirci
Abstract: A circuit includes a bandpass filter and a self-tracking circuit. The bandpass filter has a first input node configured to receive an input square wave signal and an output node configured to provide an output sine wave signal. The bandpass filter includes a first binary-weighted programmable resistor array. The self-tracking circuit includes a second input node coupled to the output node. The self-tracking circuit includes a counter, and the counter includes an output node coupled to the first binary weighted programmable resistor array.
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2.发明申请公开(公告)号：US20190020338A1
公开(公告)日：2019-01-17
申请号：US15647825
申请日：2017-07-12
Applicant: Texas Instruments Incorporated
Inventor： Shanmuganand Chellamuthu , Kemal Safak Demirci , Anand Gopalan
CPC classification number: H03K17/145 , G05F1/56
Abstract: A voltage regulator and a gate control circuit for an aid transistor coupled to assist a pass element for the voltage regulator during line transients having a given slope are disclosed. The gate control circuit includes a first circuit coupled to receive an output voltage of the voltage regulator on a first node and to provide a gate control voltage that mirrors the output voltage on a second node. A low pass filter is coupled to receive the gate control voltage and to provide a filtered gate control voltage to the gate of the aid transistor.
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Patent Agency Ranking
公开(公告)号：US10784873B1
公开(公告)日：2020-09-22
申请号：US16391865
申请日：2019-04-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qunying Li , Shanmuganand Chellamuthu , Kemal Safak Demirci
Abstract: A circuit includes a bandpass filter and a self-tracking circuit. The bandpass filter has a first input node configured to receive an input square wave signal and an output node configured to provide an output sine wave signal. The bandpass filter includes a first binary-weighted programmable resistor array. The self-tracking circuit includes a second input node coupled to the output node. The self-tracking circuit includes a counter, and the counter includes an output node coupled to the first binary weighted programmable resistor array.
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公开(公告)号：US12072373B2
公开(公告)日：2024-08-27
申请号：US18117516
申请日：2023-03-06
Applicant: Texas Instruments Incorporated
Inventor： Kemal Safak Demirci , Shanmuganand Chellamuthu , Qunying Li
CPC classification number: G01R31/2853 , H03F3/45475 , H03K5/24 , H03K19/20
Abstract: A circuit includes a gain stage, first and second amplifiers, and a comparison circuit. The gain stage has an input and an output. The first amplifier has an input and an output. The input of the first amplifier is coupled to the input of the gain stage. The second amplifier has an input and an output. The input of the second amplifier is coupled to the output of the gain stage. The comparison circuit is coupled to the outputs of the first and second amplifiers. The comparison circuit is configured to compare signals on the outputs of the first and second amplifiers and to generate a fault flag signal responsive to the output signal from the first amplifier being different than the output signal from the second amplifier.
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公开(公告)号：US10382030B2
公开(公告)日：2019-08-13
申请号：US15647825
申请日：2017-07-12
Applicant: Texas Instruments Incorporated
Inventor： Shanmuganand Chellamuthu , Kemal Safak Demirci , Anand Gopalan
Abstract: A voltage regulator and a gate control circuit for an aid transistor coupled to assist a pass element for the voltage regulator during line transients having a given slope are disclosed. The gate control circuit includes a first circuit coupled to receive an output voltage of the voltage regulator on a first node and to provide a gate control voltage that mirrors the output voltage on a second node. A low pass filter is coupled to receive the gate control voltage and to provide a filtered gate control voltage to the gate of the aid transistor.
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公开(公告)号：US11598802B2
公开(公告)日：2023-03-07
申请号：US17168528
申请日：2021-02-05
Applicant: Texas Instruments Incorporated
Inventor： Kemal Safak Demirci , Shanmuganand Chellamuthu , Qunying Li
Abstract: A circuit includes a gain stage, first and second amplifiers, and a comparison circuit. The gain stage has an input and an output. The first amplifier has an input and an output. The input of the first amplifier is coupled to the input of the gain stage. The second amplifier has an input and an output. The input of the second amplifier is coupled to the output of the gain stage. The comparison circuit is coupled to the outputs of the first and second amplifiers. The comparison circuit is configured to compare signals on the outputs of the first and second amplifiers and to generate a fault flag signal responsive to the output signal from the first amplifier being different than the output signal from the second amplifier.
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公开(公告)号：US09515655B2
公开(公告)日：2016-12-06
申请号：US14671436
申请日：2015-03-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Shanmuganand Chellamuthu , Kemal Safak Demirci
IPC: H03K19/003
CPC classification number: H03K19/00315 , H03K19/00369 , Y10T307/675 , Y10T307/724
Abstract: A circuit includes an input pin connected to an integrated circuit (IC) that receives an input voltage that is provided to a first voltage circuit within the IC. A pass device having a control input responds to a first control signal state and a second control signal state. The first control signal state turns the pass device off such that the input voltage is switched off to block the passing of the input voltage to a second voltage circuit within the IC. The second control signal state turns the pass device on such that the input voltage is switched through the pass device to the second voltage circuit in a voltage range that is compatible with an input operating voltage range of the second voltage circuit.
Abstract translation: 电路包括连接到集成电路（IC）的输入引脚，该集成电路接收提供给IC内的第一电压电路的输入电压。 具有控制输入的通过装置响应于第一控制信号状态和第二控制信号状态。 第一控制信号状态使通过装置关闭，使得输入电压被关闭以阻止输入电压通过IC内的第二电压电路。 第二控制信号状态使得通过装置使得输入电压在与第二电压电路的输入工作电压范围兼容的电压范围内通过通过装置切换到第二电压电路。
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