Patent US3873907A successfully refreshed from Google Patents.
US3873907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High dynamic range voltage regulator
Assignee: United States Department of the Navy
•
Filing: 1973-10-26
•
Granted: 1975-03-25
•
Expires: 1993-10-26
Abstract
Abstract A highly efficient, high dynamic range voltage regulator wherein regulation is maintained even when the voltage differential between the output and the unregulated input becomes small.
Inventors
- 👤 Jon Hunt Bumgardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:38
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
227 words
An electronic voltage regulator for providing a regulated output voltage from an unregulated input, comprising: a regulating transistor coupled to said unregulated input; circuit means coupled to the base terminal of said regulating transistor for controlling the conductivity rate of said regulating transistor in response to the value of the regulators output; and circuit means coupled to said rate controlling means for sensing the value of the regulator''s output and providing an output to said rate controlling means in response thereto; wherein said rate controlling means includes a transistor having the collector coupled to the base of said regulating transistor, said sensing and providing means is coupled to the base of the said transistor of the rate controlling means, and the collector of said regulating transistor is directly connected to the output terminal of the regulator, and said sensing and providing means includes a transistor having its collector coupled to the base of the said transistor of the rate controlling means, and a diode coupled between the regulator''s output terminal and the base of the said transistor of the sensing and providing means; and wherein a resistor couples the collector of the said transistor of said rate controlling means to the base of said regulating transistor, and a capacitor is directly coupled between the collector and the emitter of the said transistor of the rate controlling means.
Claim 2
Dependent Claim
227 words
An electronic voltage regulator for providing a regulated output voltage from an unregulated input, comprising: a regulating transistor coupled to said unregulated input; circuit means coupled to the base terminal of said regulating transistor for controlling the conductivity rate of said regulating transistor in response to the value of the regulators output; and circuit means coupled to said rate controlling means for sensing the value of the regulator''s output and providing an output to said rate controlling means in response thereto; wherein said rate controlling means includes a transistor having the collector coupled to the base of said regulating transistor, said sensing and providing means is coupled to the base of the said transistor of the rate controlling means, and the collector of said regulating transistor is directly connected to the output terminal of the regulator, and said sensing and providing means includes a transistor having its collector coupled to the base of the said transistor of the rate controlling means, and a diode coupled between the regulator''s output terminal and the base of the said transistor of the sensing and providing means; and wherein a resistor couples the collector of the said transistor of said rate controlling means to the base of said regulating transistor, and a capacitor is directly coupled between the collector and the emitter of the said transistor of the rate controlling means.
Claim 3
Dependent Claim
28 words
The regulator of claim 1 wherein a resistor is directly coupled between the said output terminal and the base of the said transistor of the rate controlling means.
Claim 4
Dependent Claim
61 words
The regulator of claim 2 wherein said diode is connected through a resistor to the base of the said transistor of the sensing and providing means, and a resistor couples the junction between the diode and the resistor to the emitters of both the said transistor of the rate controlling means and the said transistor of the sensing and providing means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |