| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving apparatus which can prevent a mistake operation when the potentials of connecting nodes of two switching devices connected in a totem pole manner are changed, and which can reduce a power consumption. <P>SOLUTION: A dummy circuit 303 fundamentally has a constitution similar to that of level shifting circuits 203a, 203b, and an HVNMOS 311 is always set to a non-conducting state. A mask circuit 403 removes a noise in signals S200a, S200b from the circuits 203a, 203b by utilizing a signal S300 from the circuit 303. Control signals S100a, S100b include repeating pulses, which are transmitted to the S input and the R input of an RS flip-flop 502. PMOSes 215, 225 set current paths 210, 220 to non-conducting states based on the output signal S500 of the flip-flop 502, and thereby suitably pauses one of the circuits 203a, 203b. <P>COPYRIGHT: (C)2004,JPO |
