Measurement and improvement of power consumption for portable computers

Reducing the power consumption of portable computers has become very important, as it results in a longer battery life. Designers can approach the reduction of power consumption in a number of ways. First, they can use low power components, such as a low-power display, a display easily visible without a backlight, a low-power processor, and a low-power disk. In addition, the designers can modify the CPU frequency, or turn off some devices to reduce power consumption. To verify the low power design, we must ascertain the integral structure of the power plane of portable computers, and provide an accurate and automatic measurement for the power consumption of each of the motherboard modules, focus on the key modules of the whole portable computer based on the power consumption, and then replace the key modules or devices with a lower powered item.