| 摘要 |
A self-oscillating switch-mode amplifier amplifying an input signal into a power output signal comprising an integrator for integrating the difference between the input signal and the output signal and a hysteretic comparator with thresholds which are modulated according to absolute value of the input signal. When the thresholds are quadratic function of the absolute value of the input signal, the switching frequency of the self-oscillating amplifier can be substantially constant.
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