The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 1989
Filed:
May. 20, 1986
Steve Krsna, Wrightstown, NJ (US);
Crestek, Inc., Trenton, NJ (US);
Abstract
A regulated ultrasonic generator operable for supplying a driving signal to an ultrasonic transducer is disclosed. The generator includes: a power supply; a bridge inverter circuit for generating a power signal having two alternating components of opposite potential; a timing circuit for generating a timing signal equal in frequency to the desired frequency of the power signal; a bridge driver circuit for periodically generating base drive signals for switching on the bridge inverter circuit; a bridge modulating circuit for controlling the amount of time during each cycle that the bridge inverter circuit is on so as to regulate the power content of the power signal; and means for supplying the power signal to the ultrasonic transducer.