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    • 1. 发明授权
    • Control circuit and electronic device
    • 控制电路和电子设备
    • US08928177B2
    • 2015-01-06
    • US13035485
    • 2011-02-25
    • Tomohiro SuzukiMasahiro Natsume
    • Tomohiro SuzukiMasahiro Natsume
    • H02J1/00H02J3/00G05F3/04H03D3/00H02M3/07
    • H02M3/07Y10T307/724
    • A controller includes a difference detector that detects a difference between a switching timing of a first channel of a switching power supply including a plurality of channels, and a switching timing of a second channel of the switching power supply, the plurality of channels being coupled in common to an input power supply and performing switching operations in response to clock signals, and a timing adjuster that, based on a detection result of the difference detector, increases a difference between a timing of a clock signal supplied to the first channel and a timing of a clock signal supplied to the second channel when the difference between the switching timing of the first channel and the switching timing of the second channel is smaller than a first value.
    • 控制器包括差分检测器,其检测包括多个通道的开关电源的第一通道的切换定时与开关电源的第二通道的切换定时之间的差异,多个通道耦合在 对于输入电源共用并且响应于时钟信号执行开关操作;以及定时调整器,其基于差分检测器的检测结果增加提供给第一通道的时钟信号的定时与定时 当第一通道的切换定时与第二通道的切换定时之间的差小于第一通道时提供给第二通道的时钟信号。
    • 2. 发明申请
    • CONTROL CIRCUIT and ELECTRONIC DEVICE
    • 控制电路和电子设备
    • US20110234195A1
    • 2011-09-29
    • US13035485
    • 2011-02-25
    • Tomohiro SUZUKIMasahiro Natsume
    • Tomohiro SUZUKIMasahiro Natsume
    • G05F3/08H03D13/00
    • H02M3/07Y10T307/724
    • A controller includes a difference detector that detects a difference between a switching timing of a first channel of a switching power supply including a plurality of channels, and a switching timing of a second channel of the switching power supply, the plurality of channels being coupled in common to an input power supply and performing switching operations in response to clock signals, and a timing adjuster that, based on a detection result of the difference detector, increases a difference between a timing of a clock signal supplied to the first channel and a timing of a clock signal supplied to the second channel when the difference between the switching timing of the first channel and the switching timing of the second channel is smaller than a first value.
    • 控制器包括差分检测器,其检测包括多个通道的开关电源的第一通道的切换定时与开关电源的第二通道的切换定时之间的差异,多个通道耦合在 对于输入电源共用并且响应于时钟信号执行开关操作;以及定时调节器,其基于差分检测器的检测结果增加提供给第一通道的时钟信号的定时与定时 当第一通道的切换定时与第二通道的切换定时之间的差小于第一通道时提供给第二通道的时钟信号。
    • 4. 发明授权
    • Control circuit having error amplifier for DC-DC converter and control method therefor
    • 具有用于DC-DC转换器的误差放大器的控制电路及其控制方法
    • US07242170B1
    • 2007-07-10
    • US11278822
    • 2006-04-06
    • Masahiro Natsume
    • Masahiro Natsume
    • G05F1/00
    • H02M1/32H02M1/36H02M3/156
    • A control circuit for DC-DC converters and a control method therefor wherein unstable operation in which output voltage fluctuates can be detected and the unstable operation be prevented from continuing are provided. The control circuit includes: an error amplifier ERA1 that has an inverting input terminal to which detecting voltage V1 detected according to output voltage is inputted and a non-inverting input terminal to which reference voltage e1 is inputted, and amplifies the difference voltage of detecting voltage relative to reference voltage e1; and a detection unit 50 that detects that an error output signal VOP of the error amplifier ERA1 stays at a predetermined voltage level. The detection unit 50 includes: a signal determination unit that determines that the predetermined voltage level is out of a normal operating range; and a duration count unit that detects that the predetermined voltage level stays out of the normal operating range for a predetermined time by the signal determination unit.
    • 提供一种用于DC-DC转换器的控制电路及其控制方法,其中可以检测输出电压波动的不稳定操作,并且防止不稳定操作继续。 控制电路包括:输入具有根据输出电压检测到检测电压V 1的反相输入端子的误差放大器ERA 1和输入基准电压e 1的非反相输入端子,并且将差电压 检测相对于参考电压e 1的电压; 以及检测单元50,其检测误差放大器ERA 1的误差输出信号VOP保持在预定电压电平。 检测单元50包括:信号确定单元,其确定预定电压电平处于正常工作范围之外; 以及持续时间计数单元,其通过所述信号确定单元检测所述预定电压电平在预定时间内停留在正常操作范围之外。
    • 10. 发明申请
    • CONTROL CIRCUIT HAVING ERROR AMPLIFIER FOR DC-DC CONVERTER AND CONTROL METHOD THEREFOR
    • 具有DC-DC转换器的错误放大器的控制电路及其控制方法
    • US20070159142A1
    • 2007-07-12
    • US11278822
    • 2006-04-06
    • Masahiro Natsume
    • Masahiro Natsume
    • G05F1/00
    • H02M1/32H02M1/36H02M3/156
    • A control circuit for DC-DC converters and a control method therefor wherein unstable operation in which output voltage fluctuates can be detected and the unstable operation be prevented from continuing are provided. The control circuit includes: an error amplifier ERA1 that has an inverting input terminal to which detecting voltage V1 detected according to output voltage is inputted and a non-inverting input terminal to which reference voltage e1 is inputted, and amplifies the difference voltage of detecting voltage relative to reference voltage e1; and a detection unit 50 that detects that an error output signal VOP of the error amplifier ERA1 stays at a predetermined voltage level. The detection unit 50 includes: a signal determination unit that determines that the predetermined voltage level is out of a normal operating range; and a duration count unit that detects that the predetermined voltage level stays out of the normal operating range for a predetermined time by the signal determination unit.
    • 提供一种用于DC-DC转换器的控制电路及其控制方法,其中可以检测输出电压波动的不稳定操作,并且防止不稳定操作继续。 控制电路包括:输入具有根据输出电压检测到检测电压V 1的反相输入端子的误差放大器ERA 1和输入基准电压e 1的非反相输入端子,并且将差电压 检测相对于参考电压e 1的电压; 以及检测单元50,其检测误差放大器ERA 1的误差输出信号VOP保持在预定电压电平。 检测单元50包括:信号确定单元,其确定预定电压电平处于正常工作范围之外; 以及持续时间计数单元,其通过所述信号确定单元检测所述预定电压电平在预定时间内停留在正常操作范围之外。