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    • 1. 发明授权
    • Control integrated circuit of a switch power supply and a switch power supply using the same
    • 控制开关电源的集成电路和使用其的开关电源
    • US08976546B2
    • 2015-03-10
    • US13561354
    • 2012-07-30
    • Wenqing WangXiaohua YangChuntian YuYuming Feng
    • Wenqing WangXiaohua YangChuntian YuYuming Feng
    • H02M3/335H02M1/00
    • H02M3/33507H02M3/33523H02M2001/0003H02M2001/0035Y02B70/16
    • A control integrated circuit for controlling a switch power supply, including: a voltage collecting module, configured to collect a feedback voltage based on an output voltage of the switch power supply; an error amplifying module, configured to compare the feedback voltage with a reference voltage and generate an error voltage; a time collecting module, configured to obtain a degaussing time signal based on the feedback voltage; and a constant voltage and current module, configured to collect a peak current feedback signal of a switch transistor, generate a control signal based on the error voltage, the degaussing time signal and the peak current feedback signal, wherein the control signal is for controlling an operating frequency and a duty ratio of the switch transistor, and control the switch transistor according to the control signal.
    • 一种用于控制开关电源的控制集成电路,包括:电压采集模块,被配置为基于开关电源的输出电压收集反馈电压; 误差放大模块,被配置为将所述反馈电压与参考电压进行比较并产生误差电压; 时间采集模块,被配置为基于所述反馈电压获得消磁时间信号; 以及恒定电压和电流模块,被配置为收集开关晶体管的峰值电流反馈信号,基于所述误差电压,所述消磁时间信号和所述峰值电流反馈信号产生控制信号,其中所述控制信号用于控制 开关晶体管的工作频率和占空比,并根据控制信号控制开关晶体管。
    • 3. 发明申请
    • CONTROL INTEGRATED CIRCUIT OF A SWITCH POWER SUPPLY AND A SWITCH POWER SUPPLY USING THE SAME
    • 开关电源的控制集成电路和使用该开关电源的开关电源
    • US20130027985A1
    • 2013-01-31
    • US13561354
    • 2012-07-30
    • Wenqing WANGXiaohua YANGChuntian YUYuming FENG
    • Wenqing WANGXiaohua YANGChuntian YUYuming FENG
    • H02M3/335
    • H02M3/33507H02M3/33523H02M2001/0003H02M2001/0035Y02B70/16
    • A control integrated circuit for controlling a switch power supply, including: a voltage collecting module, configured to collect a feedback voltage based on an output voltage of the switch power supply; an error amplifying module, configured to compare the feedback voltage with a reference voltage and generate an error voltage; a time collecting module, configured to obtain a degaussing time signal based on the feedback voltage; and a constant voltage and current module, configured to collect a peak current feedback signal of a switch transistor, generate a control signal based on the error voltage, the degaussing time signal and the peak current feedback signal, wherein the control signal is for controlling an operating frequency and a duty ratio of the switch transistor, and control the switch transistor according to the control signal.
    • 一种用于控制开关电源的控制集成电路,包括:电压采集模块,被配置为基于开关电源的输出电压收集反馈电压; 误差放大模块,被配置为将所述反馈电压与参考电压进行比较并产生误差电压; 时间采集模块,被配置为基于所述反馈电压获得消磁时间信号; 以及恒定电压和电流模块,被配置为收集开关晶体管的峰值电流反馈信号,基于所述误差电压,所述消磁时间信号和所述峰值电流反馈信号产生控制信号,其中所述控制信号用于控制 开关晶体管的工作频率和占空比,并根据控制信号控制开关晶体管。