Autobalanced diode bridge sampling gate
Abstract
Abstract A DIODE BRIDGE SAMPLING GATE INCLUDES A FIRST FEEDBACK LOOP WHICH AUTOMATICALLY BALANCES THE GATE DRIVE CURRENT AND THEREBY ESSENTIALLY ELIMINATES ANY DC OFFSET IN THE OUTPUT. THIS FIRST FEEDBACK LOOP COMPRISES A DUAL OUTPUT CURRENT SOURCE WHICH SUPPIES CURRENT TO THE CONTROL TERMINALS AND AN OPERATIONAL AMPLIFIER WHICH COMPARES THE GATE BIAS VOLTAGES AND USES THE COMPARISON TO CONTROL THE DUAL OUTPUT CURRENT SOURCE IN SUCH A WAY AS TO BALANCE THESE BIAS VOLTAGES. A SECOND FEEDBACK LOOP ANY ALSO BE INCLUDED, WHICH MAINTAINS ONE OF THE GATE BIAS CURRENTS AT A CONSTANT VALUE INDEPENDENT OF NOMINAL POWER SUPPLY VARIATIONS. THIS REDUCES THE SENSITIVITY OF THE GATE CURRENT BALANCE TO THE TRACKING OF THE OUTPUTS OF THE DUAL CURRENT SOURCE. D R A W I N G
Inventors
- 👤 G Benson
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |