-
1.发明授权Control circuit of power converter with upper limit clamping circuit and related method 有权具有上限钳位电路的电源转换器控制电路及相关方法公开(公告)号：US09563212B2
公开(公告)日：2017-02-07
申请号：US14668290
申请日：2015-03-25
Applicant: Richtek Technology Corporation
Inventor： Yu-Nung Tsai
Abstract: A control circuit includes: a comparing circuit, having a first input terminal and second input terminal, configured to operably generate a comparison signal according signals received by the first and second input terminals, wherein the first input terminal is utilized for coupling with a reference signal and the second input terminal is utilized for coupling with a feedback signal; a periodic signal generating circuit configured to operably generate a periodic signal and to operably apply the periodic signal to the first input terminal or the second input terminal of the comparing circuit; and a control signal generating circuit configured to operably control an on time of a power switch according to the comparison signal.
Abstract translation: 控制电路包括：比较电路，具有第一输入端和第二输入端，被配置为根据由第一和第二输入端接收的信号可操作地产生比较信号，其中第一输入端用于与参考信号 并且第二输入端用于与反馈信号耦合; 周期性信号发生电路，被配置为可操作地产生周期性信号并将周期性信号可操作地应用于比较电路的第一输入端或第二输入端; 以及控制信号生成电路，被配置为根据比较信号可操作地控制电源开关的接通时间。
-
公开(公告)号：US10170987B2
公开(公告)日：2019-01-01
申请号：US15388923
申请日：2016-12-22
Applicant: RICHTEK TECHNOLOGY CORPORATION
Inventor： Yu-Nung Tsai , Yi-Chun Chen
Abstract: A control circuit includes: a comparing circuit, having a first input terminal and second input terminal, configured to operably generate a comparison signal according signals received by the first and second input terminals, wherein the first input terminal is utilized for coupling with a reference signal and the second input terminal is utilized for coupling with a feedback signal; a periodic signal generating circuit configured to operably generate a periodic signal and apply the periodic signal to the first input terminal or the second input terminal of the comparing circuit; and a control signal generating circuit for controlling an on time of a power switch according to the comparison signal. The periodic signal generating circuit clamps a limit of the periodic signal to a predetermined value, but does not configure the slope of the periodic signal to be zero when there is no current passing through the inductor.
-
Search Results
2
records
(took 0.011 seconds)
