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    • 7. 发明申请
    • HIGH-EFFICIENCY SWITCHED-MODE POWER SUPPLY WITH ASSURED HIGH-FREQUENCY OPERATIONS AT LOW-POWER OUTPUT
    • 在低功率输出下保证高频操作的高效开关电源
    • WO2009145804A1
    • 2009-12-03
    • PCT/US2008/082948
    • 2008-11-10
    • BATTERY-BIZ INC.MARTEN, Victor
    • MARTEN, Victor
    • H02M3/28H02M3/155
    • H02M3/28H02M3/33584
    • The SMPS operates at a reasonably high and inaudible frequency, while enjoying the same high efficiency as the 'Burst Mode' and 'Cycle-Skipping Mode' operations. A reverse-energy flow is introduced into the SMPS, which is used to shorten the time between successive forward-energy-transfer pulses, thereby raising the operating frequency to any desired value. In other words, what is proposed is to remove a small amount of energy from the output-reservoir capacitor and deposit this energy back at the input-reservoir capacitor. Since the transfer of energy via switching-mode converters is nearly lossless, this small amount of energy is simply recycled, moving from the output-reservoir capacitor to the input-reservoir capacitor, and vice-versa. As a result of the proper timing of the reverse-energy-transfer pulses to the input-reservoir capacitor, the proper average output voltage to the load is maintained, while the frequency of the output voltage waveform is increased above the audible range.
    • SMPS的操作频率相当高,听不见,同时具有与“突发模式”和“跳过模式”操作相同的高效率。 反向能量流被引入到SMPS中,其用于缩短连续的正向能量转移脉冲之间的时间,从而将工作频率提高到任何期望的值。 换句话说,所提出的是从输出储层电容器中除去少量的能量,并将这种能量沉积在输入储层电容器上。 由于通过开关模式转换器的能量传递几乎是无损的,所以这种少量的能量被简单地再循环,从输出 - 储存电容器移动到输入 - 储存电容器,反之亦然。 作为对输入 - 储存电容器的反向能量转移脉冲的适当定时的结果,保持了对负载的适当的平均输出电压,同时输出电压波形的频率增加到高于可听范围。