DIRECT CURRENT/ DIRECT CURRENT CONVERTER FOR REDUCING SWITCHING LOSS, WIRELESS POWER RECEIVER INCLUDING DIRECT CURRENT/ DIRECT CURRENT CONVERTER
First Claim
1. A direct current-direct current (DC/DC) converter for use in a wireless power receiver, the DC/DC converter comprising:
- a voltage converting unit configured to convert, DC voltage, to a predetermined DC voltage;
a turn-on switch configured to control current flow of the DC voltage through the voltage converting unit; and
a switching controller configured to;
detect an amount of current of the voltage converting unit based on a first turn-on period of the turn-on switch,set a second turn-on period of the turn-on switch based on the detected amount of current, andcontrol the turn-on switch based on the second turn-on period.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided are a direct current/direct current (DC/DC) converter and a wireless power receiver including the DC/DC converter. In one embodiment, a direct current-direct current (DC/DC) converter for use in a wireless power receiver, the DC/DC converter may include: a voltage converting unit configured to convert, DC voltage, to a predetermined DC voltage; a turn-on switch configured to control current flow of the DC voltage through the voltage converting unit; and a switching controller configured to: detect an amount of current of the voltage converting unit based on a first turn-on period of the turn-on switch, set a second turn-on period of the turn-on switch based on the detected amount of current, and control the turn-on switch based on the second turn-on period.
18 Citations
17 Claims
-
1. A direct current-direct current (DC/DC) converter for use in a wireless power receiver, the DC/DC converter comprising:
-
a voltage converting unit configured to convert, DC voltage, to a predetermined DC voltage; a turn-on switch configured to control current flow of the DC voltage through the voltage converting unit; and a switching controller configured to; detect an amount of current of the voltage converting unit based on a first turn-on period of the turn-on switch, set a second turn-on period of the turn-on switch based on the detected amount of current, and control the turn-on switch based on the second turn-on period. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A wireless power receiver comprising:
-
a target resonator configured to receive electromagnetic energy from a source resonator; a rectifier configured to rectify an alternating current (AC) signal received from the target resonator, to generate a direct current (DC) signal; and a DC/DC converter configured to adjust a signal level of the DC signal, to output a rated voltage, the DC/DC converter comprises; a voltage converting unit configured to convert, DC voltage, to a predetermined DC voltage; a turn-on switch configured to control current flow of the DC voltage through the voltage converting unit; and a switching controller configured to; detect an amount of current of the voltage converting unit based on a first turn-on period of the turn-on switch, set a second turn-on period of the turn-on switch based on the detected amount of current, and control the turn-on switch based on the second turn-on period. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method for converting direct current to direct current (DC/DC) comprising:
-
converting, DC voltage, to a predetermined DC voltage; controlling current flow of the DC voltage via a turn-on switch; detecting an amount of current based on a first turn-on period on the turn-on switch; and setting a second turn-on period of the turn-on switch based on the detected amount of current. - View Dependent Claims (16, 17)
-
Specification