The following is the summary of my work in the week of Oct 10 - Oct 17. 

	1. Review of the FPGA papers and the TCAD paper on sleep 
	transistors. 

	2. Discuss with Sasank on the following work of power supply
	and come up with a rough plan for the DAC submission.

	3. Analyze the power loss of each component in the PFM circuit.   
	find that it might be useful to add a diode connected serially
	with the NMOS power transistors to eliminate the reverse current. 
	(still doing experiment).