-
公开(公告)号：US20210336543A1
公开(公告)日：2021-10-28
申请号：US16857450
申请日：2020-04-24
摘要： An apparatus comprises an emulator and a corresponding compensator. During operation, the emulator produces, at different instants of time, an emulated output current value representative of an amount of current supplied from an output voltage to a load. In general, the compensator provides selective compensation to the emulated output current value over time. For example, for a first time duration, compensation adjustments from the compensator are used to modify the emulated output current value. For a second duration of time, compensation adjustments from the compensator are not used to modify the emulated output current value. Disabling or discontinuing application of adjustments (such as based on the actual measured output current) during the second time duration (such as during a respective transient condition) provides more accurate and timely generation of a respective emulated output current value.
-
公开(公告)号：US20210376724A1
公开(公告)日：2021-12-02
申请号：US16884794
申请日：2020-05-27
发明人： Keng Chen , James R. Garrett
IPC分类号： H02M3/157
摘要： A power converter includes a switch, an ON-time controller, and a compensator. Over multiple control cycles, the ON-time controller controls an ON-time duration of a control signal driving the switch. Activation of the switch generates an output voltage that powers a dynamic load. The ON-time controller controls attributes such as a switching frequency and/or an ON-time duration of the control signal driving the switch to regulate the output voltage. A phase-locked loop in the compensator supplies the ON-time controller with adjustment signals that adjust the ON-time duration of activating the switch to maintain the switching frequency at a desired setpoint. Thus, if a transient load condition causes the ON-time controller to temporarily operate the switch to at a value other than the desired setpoint frequency, the phase-locked loop of the compensator causes the switching frequency to align with the desired switching frequency again over one or more control cycles.
-
公开(公告)号：US11601052B2
公开(公告)日：2023-03-07
申请号：US16857450
申请日：2020-04-24
摘要： An apparatus comprises an emulator and a corresponding compensator. During operation, the emulator produces, at different instants of time, an emulated output current value representative of an amount of current supplied from an output voltage to a load. In general, the compensator provides selective compensation to the emulated output current value over time. For example, for a first time duration, compensation adjustments from the compensator are used to modify the emulated output current value. For a second duration of time, compensation adjustments from the compensator are not used to modify the emulated output current value. Disabling or discontinuing application of adjustments (such as based on the actual measured output current) during the second time duration (such as during a respective transient condition) provides more accurate and timely generation of a respective emulated output current value.
-
-
搜索结果
3 条记录 (耗时 0.013 秒)
