Self resonant power supply for electro-acoustical transducer

Details Self resonant power supply for electro-acoustical transducer Self resonant power supply for electro-acoustical transducer

1983-04-25

1984-04-24

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

044450648

ABSTRACT:
A motional bridge circuit for generating feedback signals proportional to the vibration of an ultrasonic transducer is modified by means of an active filter in the feedback circuit which is coupled to a starting circuit that raises the Q of the active filter when a signal is not present in the feedback loop to change the active filter from a mode suppressant to a self-oscillating state.

REFERENCES:
patent: 3379972 (1968-04-01), Foster et al.
patent: 3432691 (1969-03-01), Shoh
patent: 3489930 (1970-01-01), Shoh
patent: 3668486 (1972-06-01), Silver
patent: 3736523 (1973-05-01), Puskas
patent: 4047992 (1977-09-01), Williams et al.
patent: 4271371 (1981-06-01), Furuichi et al.
patent: 4277710 (1981-07-01), Harwood et al.
patent: 4282496 (1981-08-01), Heuner
Van Der Burgt, Motional Positive Feedback Systems for Ultrasonic Power Generators, IEEE Trans. on Sonics & Ultrasonics, Jul. 1963.
Bullis and Budak, Response of Ultrasonic Motional Bridge Circuits under Resistive and Reactive Loads, IEEE Trans. on Sonics & Ultrasonics, Mar. 1982.

Affiliated with

Also associated with

Rating

Self resonant power supply for electro-acoustical transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self resonant power supply for electro-acoustical transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self resonant power supply for electro-acoustical transducer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-117684