N Phase digital inverter
December 31, 1999. 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 ReferencesHigh efficiency switching regulator DC-to-DC converters employing staggered-phase power switches with two-loop control Pulse width modulated DC-to-DC power converter using a single ended transformer Triggered transistor switching regulator Regulated power supply having a series arrangement of inverters Direct current power converter with start-up and protection circuits DC to DC voltage converter Patent #: 4195333 InventorAssigneeApplicationNo. 06/109128 filed on 12/31/1979US Classes:363/65, Having plural converters for single conversion363/21.1Utilizing pulse-width modulationExaminersPrimary: Shoop, William M.Attorney, Agent or FirmInternational ClassesH02M 3/28 (20060101)H02M 3/24 (20060101) AbstractAn N phase digital inverter for converting an input DC voltage level to an output DC voltage level interposes between the input and output terminals thereof a plurality of N parallel switching circuits, each switching circuit thereof comprising in series a power switch and a transformer. The output of each transformer is coupled through a diode to a common point for filtering to generate the output DC voltage. The output DC voltage is sensed and fed to a logic generator for generating a ring sequence of pulses which activate sequentially each power switch in the plurality thereof. The logic generator controls the ratio of pulse time ON divided by pulse time ON plus pulse time OFF to maintain a desired level of output DC voltage. | |
