Disclosed is a constant power output circuit of a series-connected secondary battery battery group. According to an embodiment of the present invention, the constant power output circuit of a series-connected secondary battery battery group comprises: a battery group in which a plurality of secondary battery battery cells are connected in series; a switching network connected to the battery group to vary and output an output voltage of the battery group; a direct current (DC)/DC converter boosting or stepping down the output voltage from the switching network to output the output voltage; and a limiter circuit unit controlling an output current from the DC/DC converter for constant power output. According to an embodiment of the present invention, the output voltage of the series-connected secondary battery battery group can be varied to a voltage required by a load and outputted, and output power can be stabilized by performing self-battery balancing of the series-connected secondary battery battery group and ensuring the constant power output.

    직렬접속된 2차전지 배터리군의 정파워 출력 회로가 개시된다. 본 발명의 일 실시예에 따른 직렬접속된 2차전지 배터리군의 정파워 출력 회로는, 복수의 2차전지 배터리 셀이 직렬접속된 배터리군과, 상기 배터리군에 접속되어 상기 배터리군의 출력 전압을 가변하여 출력하는 스위칭 네트워크와, 상기 스위칭 네트워크로부터의 출력 전압을 승압 또는 강압하여 출력하는 DC/DC 컨버터, 및 정파워 출력을 위해 상기 DC/DC 컨버터로부터의 출력 전류를 제어하는 리미터 회로부를 포함한다. 본 발명의 실시예에 의하면, 직렬접속된 2차전지 배터리군의 출력전압을 부하에서 요구되는 전압으로 가변하여 출력할 수 있을 뿐 아니라, 직렬접속된 2차전지 배터리군의 자체 배터리 밸런싱 수행 및 정파워 출력을 보장하여 출력전력의 안정화를 도모할 수 있다.


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    Title :

    2 STATIC POWER OUTPUT CIRCUIT


    Additional title:

    직렬접속된 2차전지 배터리군의 정파워 출력 회로


    Contributors:

    Publication date :

    2020-07-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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