1、 1 1 AC-DC AC-DC DC-DC / LM DC-AC LCD EL CCEL IC IC IMP IMP525/562/803 EL Maxim Max1635 EL Maxim Max1610 Linear 1182 TI Vcc3972 CCEL VET-N1210-01 CCEL PYE EL/CCEL IC 2 2 DC-DC DC-DC 1.2V 1.5V 1.8V 2.5V 3.3V 5V Torex XC6203 Richtek RT9168/A AME AME8800 AME8811 On Somlconductor NCP1400A Maxim Max1795
2、1.55V 1.22.5% 100500mA LCD 2.5V 3 IC CPU IC IMP IMP811(2) Torex X61A(C) Holtek HT70xx Ricoh RT31xxx1 TI TPS31xx IMP Maxim 705 706 708 813 4 / DC/DC MOSFET DC-DC CPU “ ” “ ” Vin Vout GND 1u 1u 2.5V Vin + XC6203X252 3 Watch Dog Watch Dog Maxim Max813 CPU CPU Watchdog CPU a b Watchdog Watchdog “ ” 1 AF = 1 RC LC RC (1Hz1mHz) RC RC RC RC 4 RC LC 1mHz kHz mHz ( ) LC ( )LC LC LC LC b e c LC LC 2 (Piezoelectric Effect) L 1 ( ) C 1 ( ) R 1 ( ) C 0 ( ) R 1 C 1 L 1 “ “ , (Fundamental VGA : L7 L11, L9 L10 20omh, R2 0 R2 1. Rc21 0 Rc20 0 S3V DVd d
