Examples may include an apparatus including a circuit coupled between a supply line, a return line, and a terminal. The circuit may provide an oscillating signal to the terminal. The circuit may include a first switch to couple the supply line with the terminal. The circuit may also include a second switch to couple the return line with the terminal. The circuit may also include a first inductor coupled between the first switch and the terminal. The circuit may also include a second inductor coupled between the second switch and the terminal. The circuit may also include a first diode coupled between the return line and an internal node of the first switch and the first inductor. The circuit may also include a second diode coupled between the supply line and an internal node of the second switch and the second inductor. Related systems and methods are also disclosed.