Pulse Injection of a Buck Converter
Robert L. Gardner · 2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC) · 2018
Buck Converters or DC - DC converters are used throughout the electronics industry when a lower, regulated voltage is required in a system with a higher, unregulated supply voltage. For example, an electronic speed controller for a quadcopter uses a Buck converter to deliver a regulated 5V supply to other systems using a lithium polymer battery of perhaps 14.8 volts. The Buck converter is known to misbehave when the supply voltage is too high [1] or has injected interference. This behavior is of interest because the output voltage fluctuations are then injected into the more sensitive digital systems, such as the flight control system or the accelerometer. Failure or confusion of these systems can then cause the quadcopter or other system of interest to travel in the wrong direction or crash.