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    • 1. 发明授权
    • Power stage control circuit
    • 功率级控制电路
    • US08576529B2
    • 2013-11-05
    • US12932617
    • 2011-03-01
    • Yu-Chang ChenPei-Lun HuangLi-Di Lo
    • Yu-Chang ChenPei-Lun HuangLi-Di Lo
    • H02H3/08
    • H02H7/1213H02H3/24
    • The present invention discloses a power stage control circuit including: a driver circuit for controlling a power stage according to an error amplified signal; an error amplifier circuit for comparing a feedback voltage at a feedback terminal with a reference signal to generate the error amplified signal; a current generator circuit coupled to the feedback terminal for generating a fault detection current flowing to the feedback terminal; and a feedback terminal short detection circuit for generating a fault signal to stop the operation of the power stage when the feedback voltage is smaller than a short-circuit threshold voltage or when the fault detection current is larger than a short-circuit threshold current.
    • 本发明公开了一种功率级控制电路,包括:驱动电路,用于根据误差放大信号控制功率级; 误差放大器电路,用于将反馈端的反馈电压与参考信号进行比较,以产生误差放大信号; 耦合到反馈端的电流发生器电路,用于产生流向反馈端的故障检测电流; 以及反馈端短路检测电路,用于当反馈电压小于短路阈值电压时或者当故障检测电流大于短路阈值电流时,产生故障信号以停止功率级的运行。
    • 2. 发明申请
    • Power stage control circuit
    • 功率级控制电路
    • US20120013367A1
    • 2012-01-19
    • US12932617
    • 2011-03-01
    • Yu-Chang ChenPei-Lun HuangLi-Di Lo
    • Yu-Chang ChenPei-Lun HuangLi-Di Lo
    • H03K5/153
    • H02H7/1213H02H3/24
    • The present invention discloses a power stage control circuit including: a driver circuit for controlling a power stage according to an error amplified signal; an error amplifier circuit for comparing a feedback voltage at a feedback terminal with a reference signal to generate the error amplified signal; a current generator circuit coupled to the feedback terminal for generating a fault detection current flowing to the feedback terminal; and a feedback terminal short detection circuit for generating a fault signal to stop the operation of the power stage when the feedback voltage is smaller than a short-circuit threshold voltage or when the fault detection current is larger than a short-circuit threshold current.
    • 本发明公开了一种功率级控制电路,包括:驱动电路,用于根据误差放大信号控制功率级; 误差放大器电路,用于将反馈端的反馈电压与参考信号进行比较,以产生误差放大信号; 耦合到反馈端的电流发生器电路,用于产生流向反馈端的故障检测电流; 以及反馈端短路检测电路,用于当反馈电压小于短路阈值电压时或者当故障检测电流大于短路阈值电流时,产生故障信号以停止功率级的运行。
    • 8. 发明授权
    • Switching regulator capable of suppressing inrush current and control circuit thereof
    • 能够抑制浪涌电流的开关稳压器及其控制电路
    • US08811043B2
    • 2014-08-19
    • US13544542
    • 2012-07-09
    • Kuang-Fu ChangYu-Chang Chen
    • Kuang-Fu ChangYu-Chang Chen
    • H02M3/335
    • H02M1/36H02M1/32H02M3/156H02M3/33507
    • The present invention discloses a switching regulator, including: a power stage including at least one power transistor which switches according to a switch control signal to convert an input voltage to an output voltage; a pulse width modulation (PWM) signal generator generating a PWM signal according to the output voltage; an over current detection circuit comparing a current sensing signal with a reference signal to generate an over current signal indicating whether an over current is occurring; and a signal adjustment circuit adjusting the PWM signal or a clock signal to generate the switch control signal for controlling an ON time of the power transistor of the power stage.
    • 本发明公开了一种开关调节器,包括:功率级,包括至少一个功率晶体管,其根据开关控制信号切换以将输入电压转换为输出电压; 脉宽调制(PWM)信号发生器,根据输出电压产生PWM信号; 过电流检测电路,其将电流感测信号与参考信号进行比较,以产生指示是否发生过电流的过电流信号; 以及信号调整电路,调整PWM信号或时钟信号,以产生用于控制功率级的功率晶体管的接通时间的开关控制信号。
    • 10. 发明授权
    • Automatic frequency tuning in a phase lock loop
    • 在锁相环中进行自动频率调谐
    • US07301415B2
    • 2007-11-27
    • US11164924
    • 2005-12-12
    • Chung-Cheng WangChao-Shi ChuangWen-Shih LuYu-Chang Chen
    • Chung-Cheng WangChao-Shi ChuangWen-Shih LuYu-Chang Chen
    • H03B1/00
    • H03L7/10
    • A method for automatic frequency tuning in a phase lock loop suitable for use in multi-band VCO wireless systems having very limited initial frequency lock times is disclosed. A predetermined subset of VCOs out of a larger bank of VCOs is selected to serve as interpolation points. The interpolation point VCOs are pre-calibrated with a predetermined voltage and the resultingly generated frequency for each of the interpolation point VCOs is stored into memory as a (frequency, VCO) pair, one pair for each interpolation point VCO. When a desired frequency then is given to the system, an appropriate VCO is selected by interpolation using the (frequency, VCO) pairs of the two most adjacent interpolation points for tracking and locking.
    • 公开了一种适用于具有非常有限的初始频率锁定时间的多频带VCO无线系统的锁相环中的自动频率调谐方法。 选择较大的VCO组中的VCO的预定子集用作内插点。 内插点VCO以预定电压进行预校准,并且每个内插点VCO的最终产生的频率作为(频率,VCO)对存储到存储器中,对于每个内插点VCO为一对。 当给系统给出期望的频率时,通过使用用于跟踪和锁定的两个最相邻插值点的(频率,VCO)对进行插值来选择适当的VCO。