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公开(公告)号：US20230318442A1
公开(公告)日：2023-10-05
申请号：US17708982
申请日：2022-03-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kevin SCOONES , Sombuddha CHAKRABORTY , Pourya ASSEM , Reza SHARIFI
CPC classification number: H02M1/32 , H02M1/0025 , H02M1/084 , H02J2207/20 , H02J7/00308 , H02J7/00304 , H02M3/1582
Abstract: A switching converter controller includes a synchronization circuit having a first synchronization circuit input, a second synchronization circuit input, a first synchronization circuit output, and a second synchronization circuit output. The synchronization circuit is configured to: receive an early warning signal at the first synchronization circuit input; receive a load detection signal at the second synchronization circuit input; provide a first control signal at the first synchronization circuit output responsive to the early warning signal; and provide a second control signal at the second synchronization circuit output responsive to the load detection signal. The switching converter controller also includes a driver circuit configured to adjust an idle switch drive signal at a first driver circuit output and a power switch drive signal at a second driver circuit output responsive to the first control signal and the second control signal.
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公开(公告)号：US20230387817A1
公开(公告)日：2023-11-30
申请号：US17829035
申请日：2022-05-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sombuddha CHAKRABORTY , Taisuke KAZAMA , Nicola BERTONI , Dongbin HOU , Raul BLECIC , Stefan HERZER
CPC classification number: H02M3/33592 , H02M1/0058
Abstract: A voltage converter includes a switch network, a rectifier, and a transformer coupled between the switch network and the rectifier. The voltage converter includes an adaptive ON-time generation circuit having a control input and a control output, the control input. The adaptive ON-time generation circuit is configured to receive a WAKE signal to turn ON the switch network, generate a signal indicative of an OFF time of the switch network, and determine an ON time for the switch network based on the signal indicative of the OFF time.
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Patent Agency Ranking
公开(公告)号：US20200211767A1
公开(公告)日：2020-07-02
申请号：US16233804
申请日：2018-12-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Dongbin HOU , Sombuddha CHAKRABORTY , Kenji KAWANO , Jeffrey MORRONI , Yuki SATO
Abstract: A device includes a first inductor and a second inductor reversely coupled with the first inductor, wherein the first and second inductors have overlapping windings. The device also includes a housing for the first and second inductor, wherein the housing is filled with a magnetic molding compound.
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4.发明公开公开(公告)号：US20240072675A1
公开(公告)日：2024-02-29
申请号：US17898916
申请日：2022-08-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Jose V. FORMENTI , Robert MARTINEZ , Michael CORRY , Sombuddha CHAKRABORTY
CPC classification number: H02M3/33576 , H02M1/0035 , H02M3/01
Abstract: A system includes a control circuit having a voltage input and a control circuit output. The control circuit produces a control voltage at the control circuit output having a magnitude inversely related to a magnitude of an input voltage at the input voltage input. A VCO has a VCO control input and a VCO clock output. The VCO control input is coupled to the control circuit output. The VCO produces a VCO clock on the VCO clock output having a frequency that is a function of the control voltage. A protection circuit has a first clock input, a second clock input, and a protection circuit output. The second clock input is coupled to the VCO clock output. The protection circuit generates a protection circuit output signal at the protection circuit output based on a difference in frequency between a clock signal at the first clock input and the VCO clock.
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公开(公告)号：US20230318455A1
公开(公告)日：2023-10-05
申请号：US17708849
申请日：2022-03-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sombuddha CHAKRABORTY , Kevin SCOONES , Pourya ASSEM
Abstract: A transient auxiliary converter includes: a transient auxiliary converter terminal; an inductor having a first side and a second side, the first side of the inductor coupled to the transient auxiliary converter terminal; a capacitor having a first electrode and a second electrode, the second electrode of the capacitor being coupled to ground; a first switch between the second side of the inductor and the first electrode of the capacitor; and a second switch between the second side of the inductor and ground. The first and second switches are operated in accordance with a charge mode and a transient response mode for the transient auxiliary converter. The charge mode builds up charge on the capacitor from charge at the transient auxiliary converter terminal. The transient response mode releases charge on the capacitor to the transient auxiliary converter terminal.
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公开(公告)号：US20230031749A1
公开(公告)日：2023-02-02
申请号：US17390015
申请日：2021-07-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sombuddha CHAKRABORTY , Raveesh MAGOD RAMAKRISHNA
Abstract: A method includes receiving a first indication of an inductor current provided by a voltage converter. The method also includes, responsive to a ratio of a rate of change of the first indication to a rate of change of a compensation ramp being greater than a threshold value, providing a second indication to the ramp generator. The compensation ramp is provided by a ramp generator to control the voltage converter. The second indication is configured to cause the ramp generator to increase an absolute value of the rate of change of the compensation ramp. The method also includes, responsive to the ratio being less than the threshold value, providing a third indication to the ramp generator. The third indication is configured to cause the ramp generator to decrease the absolute value of the rate of change of the compensation ramp.
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公开(公告)号：US20150244269A1
公开(公告)日：2015-08-27
申请号：US14631388
申请日：2015-02-25
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Theodore Ernest YU , Ali MOTAMEDI , Dingkun DU , Sombuddha CHAKRABORTY , Patrick TETERUD , Keith Thomas SANDERS, JR.
IPC: H02M3/156
CPC classification number: H02M3/156 , H02M1/44 , H02M2001/0012
Abstract: In described examples, a switching mode power supply includes an output filter, a driver, a pulse width modulator, and pulse adaptation circuitry. The output filter is configured to provide output of the switching mode power supply. The driver is coupled to the output filter and is configured to switch current to the output filter. The pulse width modulator is configured to generate pulses that control switching of current by the driver. The pulse width modulator includes spread spectrum logic configured to randomize timing of the pulses generated by the pulse width modulator. The pulse adaptation circuitry is configured to identify an instantaneous excursion of the output of the switching mode power supply beyond a predetermined threshold, and to modify the randomized timing of the pulses produced by the pulse width modulator based on the identified instantaneous excursion.
Abstract translation: 在所述示例中，开关模式电源包括输出滤波器，驱动器，脉宽调制器和脉冲适配电路。 输出滤波器配置为提供开关模式电源的输出。 驱动器耦合到输出滤波器，并配置为将电流切换到输出滤波器。 脉冲宽度调制器被配置为产生控制驱动器的电流切换的脉冲。 脉冲宽度调制器包括扩展频谱逻辑，其配置成使由脉冲宽度调制器产生的脉冲的定时随机化。 脉冲适配电路被配置为识别开关模式电源的输出超出预定阈值的瞬时偏移，并且基于所识别的瞬时偏移来修改由脉宽调制器产生的脉冲的随机定时。
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