公开(公告)号：US07075275B2

公开(公告)日：2006-07-11

申请号：US11280314

申请日：2005-11-17

申请人： Mikio Motomori ,  Takuya Ishii ,  Takashi Ryu ,  Hiroki Akashi ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

发明人： Mikio Motomori ,  Takuya Ishii ,  Takashi Ryu ,  Hiroki Akashi ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

IPC分类号： G05F1/70 ,  H05B4/24

CPC分类号： H02M3/1588 ,  H02M2001/0025 ,  H02M2001/0029 ,  Y02B70/1466

摘要： A DC-DC converter has switching means which generates a continuous switching voltage having a specified period from an input voltage and outputs the generated switching voltage, output voltage generating means which receives the switching voltage at an inductor and generates an output voltage obtained by rectifying and smoothing a voltage generated in the inductor, lamp signal generating means which generates a lamp signal and outputs the generated lamp signal, and control means which performs an arithmetic operation using a current signal relative to a current flowing in the inductor, an error signal relative to the output voltage, and the lamp signal to generate a control signal for controlling the operation of the switching means and outputs the generated control signal to the switching means. The lamp signal generating means includes first signal generating means for generating a first output signal based on a frequency divided signal having first and second periods obtained by dividing the time of a clock signal having the specified period and second signal generating means for generating a second output signal having a phase 180 degrees different from the phase of the first output signal based on the frequency divided signal, generates the lamp signal which rises after being held at a constant value for a specified time period in each of the first and second periods, and outputs the generated lamp signal.

摘要翻译： DC-DC转换器具有切换装置，其从输入电压产生具有指定周期的连续切换电压，并输出产生的开关电压，输出电压产生装置，其接收电感器的开关电压，并产生通过整流和 平滑电感器中产生的电压，产生灯信号的灯信号产生装置并输出所产生的灯信号;以及控制装置，其使用相对于在电感器中流动的电流的电流信号进行算术运算，相对于 输出电压和灯信号，以产生用于控制开关装置的操作的控制信号，并将所生成的控制信号输出到开关装置。 灯信号产生装置包括第一信号产生装置，用于根据具有通过划分具有指定周期的时钟信号的时间获得的第一和第二周期的分频信号产生第一输出信号，以及用于产生第二输出的第二信号产生装置 基于分频信号具有与第一输出信号的相位相差180度的信号的信号，产生在第一和第二周期中的每个中保持恒定值一定时间后上升的灯信号，以及 输出生成的灯信号。