MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME

The present invention relates to a mobile terminal. The mobile terminal includes: a power receiving unit which excites a first magnetic field by using a power signal received from the outside and supplies a first current flowing in a first direction; a current diminishing unit which is provided with...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SEO, DONG HYUN, PARK, JUN, JEOUNG, EUN TAEK, HAN, KI WON, YANG, BU YOUNG
Format: Patent
Sprache:eng ; kor
Schlagworte:
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Beschreibung
Zusammenfassung:The present invention relates to a mobile terminal. The mobile terminal includes: a power receiving unit which excites a first magnetic field by using a power signal received from the outside and supplies a first current flowing in a first direction; a current diminishing unit which is provided with a second current in a second direction opposite to the first direction to form a second magnetic field diminishing the first magnetic field; a current detection unit which detects the size of the first current; and a switching unit which operates such that the current diminishing unit is provided with the second current when a current value of the first current is greater than or equal to a preset reference value as a result of the detection of the current detection unit, thereby preventing the damage to a circuit caused by the occurrence of an overcurrent in wireless charging and maximizing charging efficiency by preventing the reduction in the charging efficiency. 본 발명은 이동단말기에 관한 것으로서, 외부로부터 수신된 전력신호에 의해 제1자기장이 여기되어 제1방향으로 흐르는 제1전류를 공급하는 전력 수신부; 상기 제1방향과 반대 방향인 제2방향의 제2전류를 공급받아 상기 제1자기장을 감쇄시키는 제2자기장을 형성하는 전류 감쇄부; 상기 제1전류의 크기를 감지하는 전류 감지부; 및 상기 전류 감지부의 감지결과 상기 제1전류의 전류값이 기 설정된 기준값 이상인 경우 상기 전류 감쇄부에 상기 제2전류가 공급되도록 동작하는 스위칭부;를 포함한다. 이에 의해, 무선 충전 시 과전류가 발생하여 회로가 손상되는 것을 방지하는 한편, 충전효율이 저하되는 것을 방지하여 충전효율을 극대화할 수 있다.