公开(公告)号：US10476375B2

公开(公告)日：2019-11-12

申请号：US15876351

申请日：2018-01-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shamim Choudhury ,  Zhenyu Yu ,  Zhong Ye

IPC: H02M1/42 ,  H02M7/217 ,  H02M1/088 ,  H02M1/00

Abstract: A multiple-output integrated power factor correction system includes, for example, a processor that is formed in a substrate and is arranged to monitor each voltage output of two or more output stages of a power supply and in response to generate an individual voltage error signal for each monitored output stage. A combined output voltage error signal is generated in response to each of the individual voltage error signals. The voltage input to the power supply and the total inductor current of the power supply are monitored and used to generate a combined output voltage control signal in response to the monitored input voltage total inductor current as well as the combined output voltage error control signal. Each individual output voltage control signal for each monitored output stage is generated in response to each of the respective generated individual voltage error signals.

公开(公告)号：US09431896B2

公开(公告)日：2016-08-30

申请号：US14565541

申请日：2014-12-10

Applicant: Texas Instruments Incorporated

Inventor： Zhong Ye

IPC: H02M1/42 ,  H02M7/5387 ,  H02M7/06 ,  H02M7/46 ,  H02M1/00

CPC classification number: H02M1/4208 ,  H02M1/4225 ,  H02M7/46 ,  H02M2001/0058 ,  Y02B70/126 ,  Y02B70/1491

Abstract: Power factor correction (PFC) apparatus, controllers, and methods for operating bridgeless totem pole power factor correction converters in which AC input voltage polarity is detected for designation of active and freewheeling switches of the totem pole circuit, a nominal freewheeling switch on-time is determined according to a Volt×Second balance relationship, and the voltage across the designated active switch is sensed and used to selectively modify or offset the nominal freewheeling switch on-time to provide a computed freewheeling switch on-time for the next switching cycle to facilitate zero voltage switching of the active switch.

Abstract translation: 功率因数校正（PFC）装置，控制器和方法，用于操作无轨图腾柱功率因数校正转换器，其中检测到交流输入电压极性用于指定图腾柱电路的有源和续流开关，标称续流开关导通时间为 根据Volt×第二平衡关系确定，并且感测用于指定的有源开关两端的电压，并且用于选择性地修改或偏移标称续流开关导通时间，以提供计时的续流开关接通时间以用于下一个开关周期以便于 有源开关的零电压切换。

公开(公告)号：US09118239B2

公开(公告)日：2015-08-25

申请号：US13835427

申请日：2013-03-15

Applicant: Texas Instruments Incorporated

Inventor： Shanguang Xu ,  Zhong Ye

IPC: H02M1/08 ,  H02M3/157 ,  H02M3/156

CPC classification number: H02M1/08 ,  H02M3/156 ,  H02M3/157

Abstract: A digital power supply and power supply controller are presented, including a voltage control loop and a current control loop, with a controller for pulse width modulating a switching power supply according to a voltage control loop duty cycle output or a current control loop duty cycle output, in which the controller selectively presets the voltage control loop duty cycle output to a predetermined value before switching from current loop control to voltage loop control and/or inhibits increase in a voltage loop integrator value during current loop control to mitigate voltage overshoot.

Abstract translation: 提出了一种数字电源和电源控制器，包括电压控制回路和电流控制回路，控制器根据电压控制回路占空比输出或电流控制环占空比输出脉冲宽度调制开关电源 ，其中控制器在从电流环路控制切换到电压环路控制之前选择性地将电压控制回路占空比输出预设为预定值，和/或在电流回路控制期间抑制电压环路积分器值的增加以减轻电压过冲。

公开(公告)号：US20150180330A1

公开(公告)日：2015-06-25

申请号：US14565541

申请日：2014-12-10

Applicant: Texas Instruments Incorporated

Inventor： Zhong Ye

IPC: H02M1/42 ,  H02M7/46

CPC classification number: H02M1/4208 ,  H02M1/4225 ,  H02M7/46 ,  H02M2001/0058 ,  Y02B70/126 ,  Y02B70/1491

Abstract: Power factor correction (PFC) apparatus, controllers, and methods for operating bridgeless totem pole power factor correction converters in which AC input voltage polarity is detected for designation of active and freewheeling switches of the totem pole circuit, a nominal freewheeling switch on-time is determined according to a Volt×Second balance relationship, and the voltage across the designated active switch is sensed and used to selectively modify or offset the nominal freewheeling switch on-time to provide a computed freewheeling switch on-time for the next switching cycle to facilitate zero voltage switching of the active switch.

Abstract translation: 功率因数校正（PFC）装置，控制器和方法，用于操作无轨图腾柱功率因数校正转换器，其中检测到交流输入电压极性用于指定图腾柱电路的有源和续流开关，标称续流开关导通时间为 根据Volt×第二平衡关系确定，并且感测用于指定的有源开关两端的电压，并用于选择性地修正或偏移标称续流开关导通时间，以提供计时的续流开关接通时间以用于下一个开关周期以便于 有源开关的零电压切换。