Electronic driver for an electromagnetic resonant transducer

A tactile alerting system for maximizing tactile energy delivered therefrom, said tactile alerting system comprising:

• a tactile alerting device comprising a non-linear, hardening spring resonant armature system including a plurality of planar non-linear spring members which are coupled to a magnetic motional mass suspended thereby within an electromagnetic driver for generating an electromagnetic field;
• a variable frequency oscillator, for generating an output signal, said variable frequency oscillator having an input responsive to a frequency control signal for controlling a frequency of the output signal;
• a tactile alerting device driver, having an input coupled to said variable frequency oscillator, and an output coupled to said electromagnetic driver for generating an electromagnetic field in response to the frequency of the output signal generated,
• said tactile alerting device driver further comprising power control means which suspends generation of the electromagnetic field by said electromagnetic driver during a portion of a first predetermined time interval and during a portion of a second predetermined time interval, whereby a movement of said magnetic motional mass is generated by the electromagnetic field and is transformed through said plurality of planar non-linear spring members and said electromagnetic driver into tactile energy thereby generating a tactile alert;
• and
• a tactile energy monitor, coupled to said electromagnetic driver, for monitoring a level of tactile energy generated by the movement of said magnetic motional mass during the portion of the first predetermined time interval and during the portion of the second predetermined time interval, and for generating in response thereto the frequency control signal to maximize the tactile energy delivered therefrom.