18827067. CONTROLLER (NXP USA, Inc.)
CONTROLLER
Organization Name
Inventor(s)
Peter Theodorus Johannes Degen of Arnhem (NL)
Wilhelmus Hinderikus Maria Langeslag of Wijchen (NL)
CONTROLLER
This abstract first appeared for US patent application 18827067 titled 'CONTROLLER
Original Abstract Submitted
A controller for a switched mode power supply comprising a primary winding configured to receive an input voltage at a first terminal of the primary winding. A first capacitor is coupled in series between a second terminal of the primary winding and a reference terminal configured to be coupled to a reference voltage. A secondary winding is configured to provide an output voltage of the SMPS based on the input voltage and an auxiliary winding is inductively coupled to one or both of the primary winding and the secondary winding and is configured to provide an auxiliary voltage based at least on a voltage of the first capacitor. The controller is configured to output an overvoltage signal indicative of an overvoltage across the first capacitor, based on a comparison of the auxiliary voltage during a primary stroke of the SMPS to a threshold indicative of a predetermined maximum first capacitor voltage.