Switch mode power supply having magnetically controlled output
Patent 4626976 Issued on December 2, 1986. Estimated Expiration Date: 
January 23, 2005. 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.
January 23, 2005. 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 3048767 Switching regulator Stabilizing power supply apparatus Patent #: 4460955 InventorsAssigneeApplicationNo. 06/694060 filed on 01/23/1985US Classes:363/19, With automatic control of the magnitude of output voltage or current363/75, Including inductive integral sensing and control means (e.g., ferroresonant circuit)363/91Saturable reactor (e.g., magnetic amplifier)ExaminersPrimary: Salce, Patrick R.Assistant: Ault, Anita M. Attorney, Agent or FirmInternational ClassesG05F 1/38 (20060101)G05F 1/10 (20060101) H02M 3/24 (20060101) H02M 3/335 (20060101) Foreign Application Priority Data1984-01-23 JPAbstractA magnetically controlled switching regulator which controls an output voltage using a saturable reactor, wherein the saturable reactor is constituted by a first winding through which an output current flows and a second winding through which a reset current flows. The energy for resetting the saturable reactor is supplied from a capacitor in a smoothing circuit for an output voltage. A turn ratio between the first and second windings is set so that a sufficiently high reset voltage is obtained. Since the reset current of the saturable reactor does not flow through a transformer, the saturation of the transformer and a high increase in temperature thereof do not occur, so that the core of the transformer can be miniaturized and a high gain of the output voltage control circuit can be derived.Other References
Field of SearchSingle-ended, self-oscillating typeWith automatic control of the magnitude of output voltage or current Including inductive integral sensing and control means (e.g., ferroresonant circuit) With inductive control means in the line circuit With inductive control means in the line circuit Saturable reactor (e.g., magnetic amplifier) | |
