会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Control circuit for switching power supply
    • 开关电源控制电路
    • US08598800B2
    • 2013-12-03
    • US13089741
    • 2011-04-19
    • Daisuke UchimotoHiroki KikuchiNaoki Inoue
    • Daisuke UchimotoHiroki KikuchiNaoki Inoue
    • H05B41/36G05F1/00G05F1/10
    • H02M1/36H02M3/156H05B33/0815Y02B20/347
    • A soft-start circuit generates a soft-start voltage Vss having a voltage level that rises over time. A pulse width modulator generates a PWM signal having a duty ratio adjusted such that a feedback voltage Vout′ that corresponds to the output voltage Vout of the switching power supply matches the soft-start voltage Vss. A driver circuit controls a switching element according to the PWM signal. A capacitor is arranged such that one terminal thereof is set to a fixed electric potential. A current source generates a charge current that flows intermittently in synchronization with the PWM signal so as to charge the capacitor. The soft-start circuit outputs, as the soft-start voltage Vss, a voltage that occurs at the capacitor.
    • 软启动电路产生具有随时间上升的电压电平的软启动电压Vss。 脉冲宽度调制器产生PWM信号,该PWM信号的占空比被调整为使得与开关电源的输出电压Vout相对应的反馈电压Vout'与软启动电压Vss匹配。 驱动电路根据PWM信号控制开关元件。 电容器被布置成使得其一个端子被设置为固定电位。 电流源产生与PWM信号同步地间歇流动的充电电流,以对电容器充电。 软启动电路作为软启动电压Vss输出在电容器处发生的电压。
    • 7. 发明授权
    • Constant-voltage power supply unit
    • 恒压电源单元
    • US07012791B2
    • 2006-03-14
    • US10968311
    • 2004-10-19
    • Hiroki Kikuchi
    • Hiroki Kikuchi
    • H02H7/00G05F1/573
    • G05F1/5735
    • A constant voltage supply unit having a high-speed load response, equipped with a fold-back type over-current protection function in which an output current detection voltage indicative of the output current is compared with the sum of a feedback voltage indicative of the output voltage and an offset voltage. The over-current protection function has a characteristic that the offset voltage is inversely proportional to the output-current detection voltage, so that the offset voltage is large when the output-current detection voltage (or the output current) is low, and decreases with the output-current detection voltage. In addition, the constant-voltage power supply unit allows enhance feedback of ac components in the feedback loop so as to enhance the ESR of the load-side capacitor, thereby securing phase compensation to prevent oscillations in the feedback loop.
    • 具有高速负载响应的恒压电源单元,其具有折返式过电流保护功能,其中将表示输出电流的输出电流检测电压与表示输出的反馈电压之和进行比较 电压和偏移电压。 过电流保护功能具有偏移电压与输出电流检测电压成反比的特性,当输出电流检测电压(或输出电流)低时,偏移电压较大,并随着 输出电流检测电压。 此外,恒压电源单元允许增强反馈回路中交流分量的反馈,从而增强负载侧电容器的ESR,从而确保相位补偿以防止反馈回路中的振荡。
    • 9. 发明申请
    • Constant-voltage power supply unit
    • 恒压电源单元
    • US20050083027A1
    • 2005-04-21
    • US10968311
    • 2004-10-19
    • Hiroki Kikuchi
    • Hiroki Kikuchi
    • G05F1/56G05F1/10G05F1/40G05F1/573H02M3/156
    • G05F1/5735
    • A constant voltage supply unit having a high-speed load response, equipped with a fold-back type over-current protection function in which an output current detection voltage indicative of the output current is compared with the sum of a feedback voltage indicative of the output voltage and an offset voltage. The over-current protection function has a characteristic that the offset voltage is inversely proportional to the output-current detection voltage, so that the offset voltage is large when the output-current detection voltage (or the output current) is low, and decreases with the output-current detection voltage. In addition, the constant-voltage power supply unit allows enhance feedback of ac components in the feedback loop so as to enhance the ESR of the load-side capacitor, thereby securing phase compensation to prevent oscillations in the feedback loop.
    • 具有高速负载响应的恒压电源单元,其具有折返式过电流保护功能,其中将表示输出电流的输出电流检测电压与表示输出的反馈电压之和进行比较 电压和偏移电压。 过电流保护功能具有偏移电压与输出电流检测电压成反比的特性,当输出电流检测电压(或输出电流)低时,偏移电压较大,并随着 输出电流检测电压。 此外,恒压电源单元允许增强反馈回路中交流分量的反馈,从而增强负载侧电容器的ESR,从而确保相位补偿以防止反馈回路中的振荡。