Application Note

Load Transient Response – Enhancing Loop Stability Testing

Rohde - Load Transient Setup

Validating switching converter stability is vital for any power supply design. Frequency loop and load transient responses are often used to ensure switching converter stability. Even as frequency loop response becomes more important to design validation, load transient response is still commonly used.

Load transient response can also be enhanced by visualizing the positive duty cycle for pulse width modulation (PWM) signals over time. A modern oscilloscope can do this, while also helping identify unknown converter effects.

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