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    • 4. 发明授权
    • Hysteretic switching regulator with reduced switching frequency variation
    • 迟滞开关稳压器具有降低的开关频率变化
    • US08947061B2
    • 2015-02-03
    • US13045333
    • 2011-03-10
    • Eric Martin HayesRyan Desrosiers
    • Eric Martin HayesRyan Desrosiers
    • H02M3/156
    • H02M3/1563
    • Embodiments of a hysteretic switching regulator with reduced switching frequency variation over changes in one or more of input voltage, output voltage, and temperature are provided herein. A frequency adjust controller is specifically used to adjust a parameter of an integrator within the hysteretic switching regulator to compensate for changes in one or more of input voltage, output voltage, and temperature to maintain the switching frequency of the regulator within a narrow frequency range. Limiting the potentially wide switching frequency variation makes filtering of electromagnetic interference (EMI) caused by the switching action of the hysteretic switching regulator more effective and simpler to implement.
    • 本文提供了具有降低的开关频率变化的迟滞开关调节器的实施例,其变化与输入电压,输出电压和温度中的一个或多个的变化相关。 频率调节控制器专门用于调整滞后开关稳压器内的积分器的参数,以补偿输入电压,输出电压和温度中的一个或多个的变化,以将调节器的开关频率维持在窄的频率范围内。 限制潜在的开关频率变化可以使得由迟滞开关稳压器的开关动作引起的电磁干扰(EMI)的滤波更加有效和简单。