High-efficiency low-distortion amplifier
Patent 4378530 Issued on March 29, 1983. Estimated Expiration Date: 
June 25, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 25, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3426290 Audio amplifier and method of operating the same Patent #: 4218660 InventorAssigneeApplicationNo. 06/162751 filed on 06/25/1980US Classes:330/297, Including particular power supply circuitry330/267And particular biasing arrangementExaminersPrimary: Mullins, James B.Assistant: Wan, Gene Attorney, Agent or FirmInternational ClassesH02M 3/10 (20060101)H03F 1/02 (20060101) H02M 3/04 (20060101) Foreign Application Priority Data1979-07-04 AUAbstractAn amplifier system comprising at least two tracking switching regulators or a dual-output regulator, which regulators vary the voltage across the output stage at the signal or its envelope rate. | |
