Patent US2448371A successfully refreshed from Google Patents.
Patent US3728556A successfully refreshed from Google Patents.
US3728556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative fet converter circuitry
Assignee: RTX Corp
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Filing: 1971-11-24
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Granted: 1973-04-17
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Expires: 1991-11-24
Abstract
Abstract A converter receiving low voltage signals, such as from bipolar transistor circuits and applying corresponding signals to higher voltage circuits, such as MOS transistor circuits, comprises a MOS inverter having regenerative feedback which drives the inverter with a greater voltage than that supplied thereto by the bipolar circuits. This results in positive switching which reduces switching time, avoids race conditions, and eliminates switching ambiguities which result from high noise/signal line conditions. In one embodiment, regeneration provides latching in either of two stable states.
Inventors
- 👤 C Arnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:08
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/094; H03K19/0944; H03K19/09448; H03K19/0175; H03K19/0185; H03K19/018507
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
244 words
A regenerative converter adapted to receive signals which are of a given maximum magnitude and rapidly generate related signals of a higher magnitude, comprising: a first transistor switching stage having an input and an output, said first transistor switching stage being responsive to a voltage of a first polarity and said given magnitude at its input to cause its output to assume a voltage of a second polarity and a second magnitude higher than said given magnitude; a source of a potential of said first polarity and of a magnitude substantially higher than said given magnitude; and a second transistor switching stage having an input and a pair of main current-carrying electrodes, said second transistor switching stage being responsive to a voltage of said second polarity and said second magnitude at its input to assume a highly conductive condition between said electrodes, said second transistor switching stage having its input connected to the output of said first transistor switching stage, one of said electrodes connected to the input of said first transistor switching stage, and the other of said electrodes connected to said source, whereby an input signal to said first transistor stage of said first polarity and given magnitude causes an input of said second polarity and second magnitude to said second transistor switching stage, thereby connecting the potential of said first polarity and substantially higher magnitude to said input of said first transistor switching stage to regeneratively assist in the operation thereof.
Claim 2
Dependent Claim
244 words
A regenerative converter adapted to receive signals which are of a given maximum magnitude and rapidly generate related signals of a higher magnitude, comprising: a first transistor switching stage having an input and an output, said first transistor switching stage being responsive to a voltage of a first polarity and said given magnitude at its input to cause its output to assume a voltage of a second polarity and a second magnitude higher than said given magnitude; a source of a potential of said first polarity and of a magnitude substantially higher than said given magnitude; and a second transistor switching stage having an input and a pair of main current-carrying electrodes, said second transistor switching stage being responsive to a voltage of said second polarity and said second magnitude at its input to assume a highly conductive condition between said electrodes, said second transistor switching stage having its input connected to the output of said first transistor switching stage, one of said electrodes connected to the input of said first transistor switching stage, and the other of said electrodes connected to said source, whereby an input signal to said first transistor stage of said first polarity and given magnitude causes an input of said second polarity and second magnitude to said second transistor switching stage, thereby connecting the potential of said first polarity and substantially higher magnitude to said input of said first transistor switching stage to regeneratively assist in the operation thereof.
Claim 3
Dependent Claim
34 words
A regenerative converter according to claim 1 wherein said second transistor switching stage comprises an IGFET having a gate comprising said input thereof, and having a source and a drain comprising said electrodes thereof.
Claim 4
Dependent Claim
72 words
A regenerative converter according to claim 1 wherein said first transistor switching stage comprises at least a first IGFET having a gate comprising said input thereof and having its source connected to a potential of said first polarity and said first magnitude and its drain connected to a potential supply of said second polarity and of a magnitude at least as great as said second magnitude, said drain comprising said output thereof.
Claim 5
Dependent Claim
47 words
A regenerative converter according to claim 3 wherein said second transistor switching stage comprises a second IGFET of the same channel conductivity type as said first IGFET, said second IGFET being continuously biased to conduct and connecting said drain of said first IGFET to said potential source.
Claim 6
Dependent Claim
34 words
A regenerative converter according to claim 4 wherein said second transistor switching stage comprises an IGFET having a gate comprising said input thereof, and having a source and a drain comprising said electrodes thereof.
Claim 7
Dependent Claim
138 words
A latching regenerative converter comprising: a pair of inverting amplifiers connected in series, the output of a first one of said amplifiers being connected to the input of the second one of said amplifiers, each of said amplifiers operative in response to a first potential to provide an output signal of a second potential; a source of said first potential and a source of said second potential; a first field effect transistor having its gate connected to the output of said first amplifier inverter and having its source and drain connected between said first potential source and the inpuT of said first amplifier; and a second field effect transistor having its gates connected to the output of said second amplifier and its source and drain connected between said second potential source and the input of said first amplifier.
Claim 8
Dependent Claim
138 words
A latching regenerative converter comprising: a pair of inverting amplifiers connected in series, the output of a first one of said amplifiers being connected to the input of the second one of said amplifiers, each of said amplifiers operative in response to a first potential to provide an output signal of a second potential; a source of said first potential and a source of said second potential; a first field effect transistor having its gate connected to the output of said first amplifier inverter and having its source and drain connected between said first potential source and the inpuT of said first amplifier; and a second field effect transistor having its gates connected to the output of said second amplifier and its source and drain connected between said second potential source and the input of said first amplifier.
References Cited (Backward Citations)
US3238310A
Cited
US3191061A
Cited
US3427445A
Cited
US3406346A
Cited
US3448293A
Cited
US3453507A
Cited
US3389383A
Cited
US3553541A
Cited
US3618053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |