Apparatus for supplying multi-output power and display apparatus using the same

An apparatus for supplying a multi-output power built in a display apparatus, comprising:

• an input power unit which generates an inductor-inductor-capacitor (LLC) resonance signal using direct current (DC) power;
• a main output power unit which outputs a main voltage induced by the LLC resonance signal;
• and
• a plurality of output power units which output secondary voltage induced by the LLC resonance signal at different level of voltages,
• wherein a first output power unit of the plurality of output power units outputs a respective one of the secondary voltage induced by the LLC resonance signal at a predetermined level of voltage using a different one of the secondary voltage output from a second output power unit of the plurality of output power unit,
• wherein the input power unit comprises:
• a first switching device;
• a second switching device connected in series with the first switching device;
• a first winding connected to both of the first switching device and the second switching device;
• a first capacitor connected between the first winding and the second switching device;
• and
• a feedback control unit which controls an operation of the first switching device and the second switching device.

An apparatus for supplying multi-output power built in a display apparatus, comprising:

• an input power unit which generates an inductor-inductor-capacitor (LLC) resonance signal using direct current (DC) power;
• a main output power unit which outputs a main voltage induced by the LLC resonance signal;
• and
• a plurality of output power units which output secondary voltages induced by the LLC resonance signal at different level of voltages,
• wherein a first output power unit of the plurality of output power units outputs a respective one of the secondary voltages induced by the LLC resonance signal at a predetermined level of voltage using a different one of the secondary voltages output from a second output power unit of the plurality of output power units,
• wherein the main output power unit includes a first variable resistor which varies the main voltage in accordance with a resistor value of the first variable resistor, and the plurality of output power units include second variable resistors which vary the secondary voltages in accordance with resistor values of the second variable resistors.

A display apparatus including:

• a display unit which displays an image;
• a control unit which controls the display unit;
• a multiple output power supply unit for supplying multi-output power which supplies power to the display unit and the control unit;
• wherein the multiple output power supply unit comprises:
• an input power unit which generates an inductor-inductor-capacitor (LLC) resonance signal using direct current (DC) power;
• a main output power unit which outputs a main voltage induced by the LLC resonance signal;
• and
• a plurality of output power units which output secondary voltages induced by the LLC resonance signal at different level of voltages,
• wherein a first output power unit of the plurality of output power units outputs a respective one of the secondary voltages induced by the LLC resonance signal at a predetermined level of voltage using a different one of the secondary voltages output from a second output power unit of the plurality of output power units,
• wherein the input power unit resonates by a plurality of switching devices and a first capacitor which are connected with a first winding.

A display apparatus including:

• a display unit which displays an image;
• a control unit which controls the display unit;
• a multiple output power supply unit for supplying multi-output power which supplies power to the display unit and the control unit;
• wherein the multiple output power supply unit comprises:
• an input power unit which generates an inductor-inductor-capacitor (LLC) resonance signal using direct current (DC) power;
• a main output power unit which outputs a main voltage induced by the LLC resonance signal;
• and
• a plurality of output power units which output secondary voltages induced by the LLC resonance signal at different level of voltages,
• wherein a first output power unit of the plurality of output power units outputs a respective one of the secondary voltages induced by the LLC resonance signal at a predetermined level of voltage using a different one of the secondary voltages output from a second output power unit of the plurality of output power units,
• wherein the input power unit comprises:
• a first switching device;
• a second switching device connected in series with the first switching device;
• a first winding connected to both of the first switching device and the second switching device;
• a first capacitor connected between the first winding and the second switching device;
• and
• a feedback control unit which controls an operation of the first switching device and the second switching device.