References: Text Book References • "555 Timer and its Applications'VM.C Sharma/BPB Publications • "Coils & Transformers'VBPB Editorial Board/ BPB Publications • "A Monograph of Electronic Design Principles'TN.C Goyal & R.K Ketan • "Applied Electronics'VR.S. Sedha/S.Chand Publications • 'PIC 16F87X-Data sheet'/'Microchip Pumlications' • 'Design with PIC Microcontroller'/ John b. Peatman (13th Edition ) • 'Switch-Mode Power Supply Design'/P.R.K Chetty (BPB Publications) • 'CMOS Circuit Manuals'/R.M Marston (Pearson Education • "Electronic IC Circuits with Practical Applications'VJames A. Whitson Internet References/Articles • Bill Schweber, Supervisory ICs Empower Batteries to Take Charge, EDN, Sept. 1, 1997, p.61. • Doug Vargha, A Designer's Guide to Battery Charging, Switchover, and Monitoring, ED - PIPS Supplement, May 27, 1993, p. 89. • Brian Kerridge, Battery Management ICs, EDN, May 13, 1993, p. 100. Joe Buxton, Li-Ion Battery Charging Requires Accurate Voltage Sensing, Analog Dialogue, Vol. 31-2, 1997, p. 3. • Frank Goodenough, Battery-Based Systems Demand Unique ICs, ED, July 8, 1993, p. 47. • Pnina Dan, Make the Right Battery Choice for Portables, EDPIPS Supplement, December, 1996, p. 39.