Sep 14, 2012 - Feng Pan et al., âCharge Pump Circuit Designâ, McGraw-Hill, 2006,. 26 pages. ... (58) Field of Classification Search ... 15 Claims, 8 Drawing Sheets. -405. 403. VIN. 2. 425. 427. M'7 L M ta ... 6,107,862 A 8/2000 Mukainakano et al. ..... 3A is a schematic of a voltage double type of charge chargepumps.pdf".