Combined transformer and indicator device
Abstract
Abstract FIG-01 A DC-TO-DC POWE CONVERTER INCORPORATING A COMBINED TRANSFORMER AND INDUCTOR DEVICE COMPRISES OF A THREE-LEGGED MAGNETIC STRUCTURE HAVING AN AIR GAP IN THE CENTER LEG AND PRIMARY AND SECONDARY WINDINGS ARRANGED ON THE THREE LEGS TO PROVIDE COMBINED COOPERATIVE TRANSFORMER AND INDUCTO/R ACTION. THE PRIMARY AND SECONDARY WINDINGS ARE EACH OF PUSH PULL CONFIGURATION, AND IN ONE FORM THE COOPERATING PRIMARY AND SECONDARY WINDING PUSH ARE POLED AND LOCATED TO PROVIDE MMF-BUCKING ACTION APLYING THE ENTIRE PRIMARY MMF ACROSS THE INDUCTOR LEG, WHILE IN ANOTHER FORM ONLY THE CORE MAGNETIZING MMF IS SEEN ACROSS THE INDUCTOR LEG, AND AN ADDITIONAL PROMARY WINDING IS PROVIDED TO BOOST THE FLUX IN THAT LEG. IN EACH CASE THE INDUCTOR LEG HAS AN AIR GAP TO PROVIDE IT WITH SIGNIFICANTLY HIGHER RELUCTANCE THAN THAT OF THE REMAINDER OF THE MAGNETIC CIRCUIT.
Inventors
- 👤 John R Cielo
- 👤 Harry S Hoffman Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |