US3581104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage splitter circuit
Assignee: HORNISCHFEGER CORP
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Filing: 1970-03-05
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Granted: 1971-05-25
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Expires: 1990-03-05
Abstract
Abstract A voltage splitter circuit provides a terminal voltage equal to half the voltage impressed across a pair of voltage busses. The voltage at the intermediate terminal may be used to provide two equal, but opposite, voltages between the intermediate terminal and each of the busses. The intermediate terminal is located between the output circuits of two complementary transistors connected across the busses. The transistors are operated by an amplifier driven by a voltage divider. A feedback circuit exists between the intermediate terminal and the input of the amplifier to stabilize the circuit.
Inventors
- 👤 Donald G Thew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:11
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/577; G05F1/585; H; H03; H03F; H03F3/00; H03F3/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
A circuit for providing a terminal voltage intermediate that impressed between two input voltage bus terminals and comprising: a voltage divider connected between said busses for providing a voltage corresponding to said intermediate terminal voltage; a differential input amplifier having an inverting input and noninverting input, said voltage divider being coupled to said noninverting input; and a pair of complementary current control devices having their output circuits connected in series across said busses and their input circuits connected to said amplifier, said current control devices having said intermediate terminal connected between their output circuits for providing said intermediate voltage, said intermediate terminal being connected to the inverting input of said amplifier for providing a feedback signal thereto for stabilizing said intermediate voltage.
Claim 2
Dependent Claim
122 words
A circuit for providing a terminal voltage intermediate that impressed between two input voltage bus terminals and comprising: a voltage divider connected between said busses for providing a voltage corresponding to said intermediate terminal voltage; a differential input amplifier having an inverting input and noninverting input, said voltage divider being coupled to said noninverting input; and a pair of complementary current control devices having their output circuits connected in series across said busses and their input circuits connected to said amplifier, said current control devices having said intermediate terminal connected between their output circuits for providing said intermediate voltage, said intermediate terminal being connected to the inverting input of said amplifier for providing a feedback signal thereto for stabilizing said intermediate voltage.
Claim 3
Dependent Claim
31 words
The circuit according to claim 1 wherein said voltage divider comprises resistive elements extending between said busses having an intermediate tap for providing a voltage corresponding to said intermediate terminal voltage.
Claim 4
Dependent Claim
49 words
A circuit according to claim 2 wherein said amplifier is a high gain operational amplifier having a resistor in its noninverting input and wherein the connection between said intermediate terminal and said inverting input of said operational amplifier includes a resistor for providing a loop gain of approximately unity.
Claim 5
Dependent Claim
36 words
A circuit according to claim 3 wherein said complementary current control devices comprise complementary NPN and PNP transistors having their emitter-collector circuits connected in series across said busses and their base circuits connected to said amplifier.
Claim 6
Dependent Claim
19 words
A circuit according to claim 1 including a capacitive means in the output thereof for stabilizing said terminal voltages.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |