| 摘要 |
A PWM INVERTER OUTPUT CIRCUIT ENABLING CIRCUIT INTEGRATION, HAVING A FAST RESPONSE CHARACTERISTIC, AND UNAFFECTED BY DV/DT TRANSIENTS IS PROVIDED. A PREDRIVE CIRCUIT (17) DRIVES A POWER CIRCUIT (11) COMPRISING FIRST AND SECOND POWER ELEMENTS (P1 AND P2) BY CONTROLLING THE GATE AND SOURCE POTENTIAL OF THE POWER ELEMENTS (P1 AND P2) BASED ON A STORED CONTROL STATE. THE CONTROL STATE IS DETECTED FROM A LOGIC SIGNAL OUTPUT FROM AN INPUT SIGNAL PROCESSOR (13), WHICH CONVERTS A COMMAND SIGNAL INSTRUCTING TURNING ON AND OFF THE POWER ELEMENTS (P1 AND P2) TO PREDETERMINED LOGIC SIGNALS. OPERATING POWER IS DRAWN FROM A MAIN DC POWER SOURCE (V1), A CONTROL POWER SOURCE (V2), AND A POWER SUPPLY CAPACITOR (C1) THAT IS CHARGED USING AN OUTPUT VOLTAGE FROM THE CONTROL POWER SOURCE (V2). THE GATES AND SOURCES OF THE POWER ELEMENTS (P1 AND P2) ARE CONNECTED TOGETHER.
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