1 Subjects: “...pulse duty cycle control...”

2 Subjects: “...ultrasound duty cycle...”

3 Subjects: “...duty cycle...”

4 Subjects: “...duty cycle...”

5 Subjects: “...duty cycle...”

6 Subjects: “...shoot-through duty cycle...”

7 Subjects: “...duty cycle...”

8 Subjects: “...duty cycle...”

9 Subjects: “...time-varying duty cycle...”