US3723762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saw-tooth wave generators
Assignee: Iwatsu Electric Co Ltd
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Filing: 1971-07-30
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Granted: 1973-03-27
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Expires: 1991-07-30
Abstract
Abstract In a saw-tooth wave generator of the type comprising a capacitor, a source of switching signals and a switching diode connected between the capacitor and the source of switching signals so as to alternately charge and discharge the capacitor, there is provided a series circuit including a second diode having a polarity opposite to that of the switching diode with reference to the capacitor, the series circuit being connected in parallel with the capacitor whereby the storage current of the switching diode is substantially compensated for by the storage current of the second diode.
Inventors
- 👤 N Nakaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:07
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/153; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/50; H03K4/501; H03K4/56; H03K4/787; H03K4/793
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
In a saw-tooth wave generator of the type comprising a capacitor, a source of switching signals, and switching diode connected between said capacitor and said source of switching signals so as to alternately charge and discharge said capacitor, the improvement which comprises a series circuit including a second diode and a source of voltage, said series circuit being connected in parallel with said capacitor and said second diode having the opposite polarity to that of said switching diode with reference to said capacitor so that the storage current of said switching diode is substantially compensated for by the storage current of said second diode.
Claim 2
Dependent Claim
104 words
In a saw-tooth wave generator of the type comprising a capacitor, a source of switching signals, and switching diode connected between said capacitor and said source of switching signals so as to alternately charge and discharge said capacitor, the improvement which comprises a series circuit including a second diode and a source of voltage, said series circuit being connected in parallel with said capacitor and said second diode having the opposite polarity to that of said switching diode with reference to said capacitor so that the storage current of said switching diode is substantially compensated for by the storage current of said second diode.
Claim 3
Dependent Claim
23 words
The saw-tooth wave generator according to claim 1 wherein said switching diode and said second diode have substantially the same storage current characteristics.
Claim 4
Dependent Claim
21 words
The saw-tooth wave generator according to claim 1 wherein means are provided for varying the voltage of said source of voltage.
Claim 5
Dependent Claim
25 words
The saw-tooth wave generator according to claim 1 wherein said capacitor is within a Miller''s integrating circuit together with an amplifier connected in parallel therewith.
Claim 6
Dependent Claim
31 words
The saw-tooth wave generator according to claim 1 wherein the output of said generator is applied to a boot strap circuit including an amplifier and a resistor connected in parallel therewith.
Claim 7
Dependent Claim
130 words
In a delayed pulse generator of the type comprising a combination of a saw-tooth wave generator and a comparator circuit connected to the output of said saw-tooth wave generator, said saw-tooth wave generator including a capacitor, a source of switching signals and a switching diode connected between said capacitor and said source of switching signals so as to alternately charge and discharge said capacitor, the improvement which comprises a series circuit including a second diode and a source of voltage, said series circuit being connected in parallel with said capacitor, and said second diode having the opposite polarity to that of said switching diode with reference to said capacitor so that the storage current of said switching diode is substantially compensated for by the storage current of said second diode.
Claim 8
Dependent Claim
130 words
In a delayed pulse generator of the type comprising a combination of a saw-tooth wave generator and a comparator circuit connected to the output of said saw-tooth wave generator, said saw-tooth wave generator including a capacitor, a source of switching signals and a switching diode connected between said capacitor and said source of switching signals so as to alternately charge and discharge said capacitor, the improvement which comprises a series circuit including a second diode and a source of voltage, said series circuit being connected in parallel with said capacitor, and said second diode having the opposite polarity to that of said switching diode with reference to said capacitor so that the storage current of said switching diode is substantially compensated for by the storage current of said second diode.
Claim 9
Dependent Claim
42 words
The delayed pulse generator according to claim 6 wherein said comparator circuit comprises a source of reference saw-tooth waves synchronized with said switching signals and means to compare the saw-tooth waves generated by said saw-tooth wave generator with said reference saw-tooth waves.
Claim 10
Dependent Claim
77 words
The delayed pulse generator according to claim 6 wherein said comparator circuit comprises a source of reference saw-tooth waves, a transistor, the base electrode thereof being connected to the output terminal of said saw-tooth wave generator and the emitter electrode to said source of reference saw-tooth waves, an Ezaki diode with its cathode electrode connected to the collector electrode of said transistor, and an output terminal connected to the collector electrode of said transistor through a capacitor.
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |