| 摘要 |
PROBLEM TO BE SOLVED: To provide a level shifter circuit capable of preventing a power device from being operated by mistake even when a dv/dt transient signal is imparted with a time difference. SOLUTION: A semiconductor device comprises a clock signal generator 16 for generating so-called an internal clock by outputting a pulse at a predetermined period T so as to drive NMOS transistors 24 and 26 in a high-potential side power device drive circuit HD1, and an iterative pulse generator 17 receiving a pulse-like input signal S generated with a ground potential as a reference by monitoring the state of the input signal S from an external unit synchronously with the output signal S10 of the generator 16 to generate pulse-like on signal S2 and off signal S3. |
