| 摘要 |
PURPOSE: A power-saving current measurement and a power converter using the same are provided to prevent power consumption and to increase measurement efficiency by using a sensing resistor for a necessary time only. CONSTITUTION: A power-saving current measurement(100) includes a sensing resistor(110), a switch(120), a control unit(130), a current measurement unit(140) and a timing setup unit(150). The sensing resistor connects its one end with a ground power supply. The switch is connected to the sensing resistor. The control unit controls on/off operation of the switch by synchronizing with current measurement timing. The control unit controls current to bypass the sensing resistor to the switch when the switch is in on operation and controls current to flow the sensing resistor when the switch is in off operation. [Reference numerals] (130) Control unit; (140) Current measurement unit; (150) Timing setup unit; (AA) Bypass path; (BB) Sensing path; |
