FM497
FM497 is Hall Effect Pickup Ignition Controller manufactured by Shanghai Fudan Microelectronics.
Overview
Description
The FM497 is an integrated electronic ignition controller for breakerless ignition systems using Hall effect sensors. The device drives an NPN external darlington to control the coil current providing the required stored energy with low dissipation. This circuit has many advantages: low power dissipation, stable, high ignition energy, self-protection, widely application conditions, long using life, etc. It’s patible for overseas products of the same class.
Features
Direct driving of the external power darlington Coil current charging angle (dwell) control Programme coil current peak limitation Programmable dwell recovery time when 94% nominal current not reached RPM output Permanent Conduction protection Overvoltage protection for external darlington Internal supply zener Reverse...
