Series-type voltage regulator
Abstract
Abstract A SERIES-TYPE VOLTAGE REGULATOR UTILIZING ON OR MORE PARALLEL REGULATING TRANSISTORS IN WHICH THE UNREGULATED INPUT VOLTAGE IS APPLIED BETWEEN THE EMITTER AND BASE AND THE REGULATED OUTPUT VOLTAGE IS DEVELOPED ACROSS THE COLLECTOR AND BASE, THE OPPOSITE OF THE CONVENTIONAL REGULATOR CIRCUIT. A PARTICULARLY IMPORTANT FEATURE RESIDES IN THE EXTREMELY HIGH RATIO OF REGULATED OUTPUT VOLTAGE TO UNREGULATED INPUT VOLTAGE, FOR EXAMPLE, EVEN IF THE INPUT VOLTAGE DROPS FROM A NOMINAL -20 V. TO APPROXIMATELY -16.5V., A DROP APPROACHING 20%, THE OUTPUT VOLTAGE WILL DROP ONLY VERY SLIGHTLY BELOW THE DESIRED 16 V. OUTPUT VOLTAGE. THIS FEATURE, IN ADDITION TO THE OTHER CIRCUITY OF THE VOLTAGE REGULATOR, PERMITS USE OF THE VOLTAGE REGULATOR UNDER THE EXTREMELY STRINGENT CONDITIONS REQUIRED FOR THE X AND Y DRIVERS OF A COMPUTER CORE MEMORY, WHEREIN ANY NUMBER OF THE CORES ASSOCIATED WITH A PAIR OF X AND Y DRIVE LINES MAY REQUIRED SWITCHING AND WHERE TRANSIENTS AND CURRENT AMPLITUDES MUST BE RIGIDLY CONTROLLED TO PREVENT INADVERTENT CORE SWITCHING.
Inventors
- 👤 Jon Hobart Griffin
Bibliographic Details
Claims Analysis
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |