| 摘要 |
A power regulator (30) is provided which employs a resonant circuit (32) and permits regulation between a certain maximum value and zero. A series resonant circuit is adjusted to regulate power by adjusti ng the correspondence between the resonance frequency and the frequency of the voltage source (31) such as an AC source delivering a sine wave or a square wave. Further, the output voltage is regulated to be lower than the AC source (31) when output current is zero. A capacitan ce (C2) is connected in parallel with the output of the power regulator (30) to form a second resonant circuit with the inductance (L1) of the series resonant circuit (32). A method of power regulation is also contemplated.
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