公开(公告)号：US3581125A

公开(公告)日：1971-05-25

申请号：US3581125D

申请日：1969-09-30

Applicant: CLEVITE CORP

Inventor： ARNDT JOHN P ,  FRANKLIN EDMOND G

IPC: B06B1/02 ,  H01V7/00

CPC classification number: B06B1/0253 ,  B06B2201/55 ,  B06B2201/71

Abstract: An oscillator circuit is provided for ultrasonic apparatus such as ultrasonic cleaners employing a resonant transducer. The circuit includes a pair of transistors connected in series to a source of power with the transducer connected across one of the transistors in series with the primary winding of a transformer which has secondary windings connected in opposite polarity to the bases of the transistors so that one transistor is saturated while the other is nonconducting. The circuit accordingly oscillates at substantially the resonant frequency of the transducer as a result of the feedback provided by the secondary windings of the transformer.

公开(公告)号：US3516645A

公开(公告)日：1970-06-23

申请号：US3516645D

申请日：1967-08-14

Applicant: CLEVITE CORP

Inventor： ARNDT JOHN P ,  FRANKLIN EDMOND G

IPC: B06B1/02 ,  B08B3/12 ,  B01F11/02

CPC classification number: B08B3/12 ,  B06B1/0261 ,  B06B2201/55 ,  B06B2201/71