Switch mode power supply for in-line voltage applications

RSLNDRRSDCDRRSDRA switch mode power supply employs a rectifier, a converter and converter driver. The rectifier generates a rectified supply voltage (V) based on an in-line voltage (V), and the converter driver generates one or more driving voltages (V) to facilitate a conversion by the converter of the rectified supply voltage (V) to a DC bus voltage (V) based on the driving voltage(s) (V). The converter may include a transient voltage suppression device to suppress the rectified supply voltage (V) in response to an abnormal line condition of the switch mode power supply, and the converter driver may include a free-oscillating suppression device to suppress the one or more driving voltages (V) in response to a free-oscillating condition of the converter driver.