Patent ID: 11909313
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 0:
1. An operating method of a voltage converter, the method comprising:
converting an input voltage to an output voltage and providing a load current corresponding to the output voltage in one of a pulse frequency modulation mode and a pulse width modulation mode;
entering the pulse frequency modulation mode in response to an amount of the load current being less than or equal to a first threshold value; and
entering the pulse width modulation mode in response to the amount of the load current being greater than a second threshold value,
wherein, in the pulse frequency modulation mode, the load current is provided based on a first time delay, the first time delay being based on a first comparison of the input voltage and the output voltage with a switching frequency, and
wherein, in the pulse width modulation mode, the load current is provided based on a second time delay, the second time delay being based on a second comparison of the input voltage and the output voltage with the switching frequency.