Energy Recycling From Multigigahertz Clocks Using Fully Integrated Switching Converters

摘要: Large digital chips use a significant amount of energy to broadcast low-skew, multigigahertz clock millions latches located throughout the chip. Every cycle, large aggregate capacitance network is charged from supply and then discharged ground. Instead wasting this stored energy, it possible recycle by controlling its delivery another part chip using an on-chip dc-dc converter. The driver switching converter circuits share many compatible characteristics that allow them be merged into single design fully integrated on-chip. Our buck prototype, manufactured in 90-nm CMOS, provides proof-of-concept can recycled other parts chip, thus lowering overall consumption. It also confirms monolithic converters utilizing zero-voltage implemented deep-submicrometer CMOS. With operation, inductors capacitors small area with low losses. Combining power MOSFET drivers necessary as well being space efficient. We present analysis losses which we confirm experimentally comparing circuit conventional driver.