| 摘要 |
<p>AN APPARATUS LHR PROVIDING A POWER OUTPUT PROPORTIONAL TO A SOURCE SIGNAL, INCLUDING A PHASE MODULATOR (106) DRIVING AN UPPER AND AN LOWER POWER DRIVER (108, 110) WITH CARRIER WAVEFORMS HAVING A RELATIVE PHASE DIFFERENCE AND HAVING A SIGNAL MODULATED THEREON, AND COUPLED TO A RESONATOR CIRCUIT TO OPERATE AS A SUBSTANTIALLY ZERO-VOLTAGE ZERO-CURRENT SWITCHING ELEMENT, WITH THE OUTPUT FED INTO RESPECTIVE UPPER AND LOWER TRANSFORMERS. IDENTICAL SYMMETRICAL SECONDARY CIRCUITS ON THE TRANSFORMERS HAVE A RECTIFIER STAGE ELECTRICALLY CONNECTED TO AN INDUCTOR IN SERIES WITH AN UPPER CAPACITOR (C1) TO FORM AN UPPER LOW PASS FILTER, AND A HIGH SPEED SEMICONDUCTOR SWITCH COUPLED TO A NODE BETWEEN THE INDUCTOR AND RECTIFIER STAGE PROVIDES A RETURN PATH TO GROUND. THE LOWER SECONDARY CIRCUIT INDUCTOR IS HIGHLY COUPLED (>=0.99) TO THE UPPER INDUCTOR (L5), AND AN OUTPUT FORMED ACROSS THE UPPER AND LOWER OUTPUT ELEMENTS IS ISOLATED FROM RAIL VOLTAGE AND BALANCED WITH BI-DIRECTIONAL CURRENT. (FIGS. 1A & 1B)</p> |
