公开(公告)号：KR100836373B1

公开(公告)日：2008-06-09

申请号：KR1020060125857

申请日：2006-12-11

Applicant: 현대자동차주식회사

Inventor： 송홍석 ,  주정홍 ,  이혁진 ,  한대웅 ,  전신혜 ,  이기종 ,  최원경 ,  박형준 ,  김준환 ,  김정근 ,  윤창우 ,  최세완

IPC: H02M3/155

CPC classification number: Y02B70/1491

Abstract: A switching control system for a DC-DC converting apparatus is provided to decrease a size and a weight of the DC-DC converting apparatus, to improve durability of a switch, and to enhance fuel efficiency through enhancing power conversion efficiency. A switching control system for a DC-DC converting apparatus includes a PWM(Pulse Width Modulation) IC(Integrated Circuit) unit(10), a control mode determination logic unit(20), and a hybrid-type PWM signal generating unit(30). The PWM IC unit outputs a PWM gate driving signal for switching operation of the DC-DC converting apparatus. The control mode determination logic unit outputs a mode selection signal for determining switching efficiency of a hard switching control mode and a soft switching control mode on the basis of an input voltage and a load current. The hybrid-type PWM signal generating unit selects one of the soft switching control mode and the hard switching control mode of a phase-shift zero voltage according to the mode selection signal outputted from the control mode determination logic unit and outputs the PWM gate driving signal corresponding to the selected mode to a switch a current converting apparatus.

Abstract translation: 提供一种用于DC-DC转换装置的开关控制系统，以减小DC-DC转换装置的尺寸和重量，以提高开关的耐用性，并且通过提高电力转换效率来提高燃料效率。 用于DC-DC转换装置的开关控制系统包括PWM（脉宽调制）IC（集成电路）单元（10），控制模式确定逻辑单元（20）和混合型PWM信号产生单元（30 ）。 PWM IC单元输出用于DC-DC转换装置的开关动作的PWM门驱动信号。 控制模式确定逻辑单元基于输入电压和负载电流输出用于确定硬开关控制模式和软开关控制模式的开关效率的模式选择信号。 混合型PWM信号发生单元根据从控制模式确定逻辑单元输出的模式选择信号选择相移零电压的软开关控制模式和硬开关控制模式之一，并输出PWM门驱动信号 对应于所选模式切换到电流转换装置。