Current regulator controlled by voltage across semiconductor junction device
Abstract
Abstract A CURRENT REGULATING CIRCUIT OR CURRENT SOURCE INCLUDES A FIRST TRANSISTOR CONNECTED IN SERIES WITH A SEMICONDUCTOR JUNCTION DEVICE FOR DEVELOPING A VOLTAGE PROPORTIONAL TO THE CURRENT FLOWING THROUGH SUCH FIRST TRANSISTOR. A SEONCD TRANSISTOR HAS ITS BASE CONNECTED TO THE SEMICONDUCTOR JUNCTION DEVICE WHEREBY CURRENT IN THE SECOND TRANSISTOR IS MODIFIED IN RESPONSE TO THE VOLTAGE ACROSS THE JUNCTION DEVICE. IN TURN, THE COLLECTOR OF THE SECOND TRANSISTOR IS CONNECTED SO THAT IT CONTROLS THE FIRST TRANSISTOR IN A SENSE FOR OPPOSING CHANGE IN THE OUTPUT CURRENT OF THE FIRST TRANSISTOR. THE SEMICONDUCTOR JUNCTION DEVICE PREFERABLY COMPRISES THE BASE-EMITTER JUNCTION OF A THIRD TRANSISTOR, AND ALL THREE TRANSISTORS ARE DESIRABLY FABRICATED UPON A COMMON SEMICONDUCTOR INTEGRATED CIRCUIT STRUCTURE.
Inventors
- 👤 George R Wilson
Bibliographic Details
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |