US3628048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High current pulsing arrangement to energize coherent radiation source
Assignee: Raytheon Co
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Filing: 1970-01-02
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Granted: 1971-12-14
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Expires: 1990-01-02
Abstract
Abstract A low-impedance radiation-emitting diode is provided to emit pulses of coherent radiation in response to the application of high energy pulses. The circuit includes an oscillator which triggers a single shot multivibrator, the latter rendering a switching transistor conductive to provide a path through an inductor to ground. Current builds up linearly in the inductor and at termination of the pulse provided by the single shot, the switching transistor assumes a nonconductive state. The inductor is subsequently discharged through a storage capacitor which is appropriately discharged through the radiation-emitting diode thereby producing the emission of a pulse of coherent radiation. 6This is a continuation of application Ser. No. 627,901 filed Apr. 3, 1967.
Inventors
- 👤 James S Lee
- 👤 John L Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/57; H01; H01S; H01S5/00; H01S5/06; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
83 words
A triggering arrangement for periodically energizing a load device, said triggering arrangement comprising: a source of voltage; a resonant charging circuit, operatively coupled to said source of voltage, for generating pulses of current; oscillator means, for providing a train of timing pulses; control means responsive to said timing pulses for regulating the generation of pulses of current by said resonant charging circuit; and gating means, responsive to said timing pulses, for enabling said pulses of current to be applied to said load device.
Claim 2
Dependent Claim
83 words
A triggering arrangement for periodically energizing a load device, said triggering arrangement comprising: a source of voltage; a resonant charging circuit, operatively coupled to said source of voltage, for generating pulses of current; oscillator means, for providing a train of timing pulses; control means responsive to said timing pulses for regulating the generation of pulses of current by said resonant charging circuit; and gating means, responsive to said timing pulses, for enabling said pulses of current to be applied to said load device.
Claim 3
Dependent Claim
15 words
The apparatus defined by claim 1 wherein said gating means includes a silicon controlled rectifier.
Claim 4
Dependent Claim
43 words
The apparatus defined by claim 1 wherein said control means comprises a monostable multivibrator having a stable state and an unstable state which is assumed and maintained for a predetermined time duration in response to the application of each of said timing pulses.
Claim 5
Dependent Claim
32 words
The apparatus defined by claim 3 further comprising temperature compensating means, operatively coupled to said control means, for controlling the time duration of said unstable state in accordance with ambient temperature conditions.
Claim 6
Dependent Claim
110 words
A triggering arrangement for periodically energizing a load device, said triggering arrangement comprising: a source of voltage; an inductor coupled to said source of voltage; switching means, serially connected to said inductor, for controllably coupling said inductor to a lead maintained at ground potential; a capacitor operatively coupled in parallel with said switching means and said load device for generating pulses of current; control means for regulating the generation of said pulses of current; oscillator means, operatively coupled to said control means, for providing a train of timing pulses; and gating means, responsive to said timing pulses, for enabling said pulses of current to be applied to said load device.
Claim 7
Dependent Claim
110 words
A triggering arrangement for periodically energizing a load device, said triggering arrangement comprising: a source of voltage; an inductor coupled to said source of voltage; switching means, serially connected to said inductor, for controllably coupling said inductor to a lead maintained at ground potential; a capacitor operatively coupled in parallel with said switching means and said load device for generating pulses of current; control means for regulating the generation of said pulses of current; oscillator means, operatively coupled to said control means, for providing a train of timing pulses; and gating means, responsive to said timing pulses, for enabling said pulses of current to be applied to said load device.
Claim 8
Dependent Claim
113 words
A triggering arrangement for periodically energizing a load device, said triggering arrangement comprising: a source of voltage; an inductor coupled to said source of voltage; switching means, serially connected to said inductor, for controllably coupling said inductor to a lead maintained at ground potential; a capacitor operatively coupled in parallel with said switching means and in series with said load device for generating pulses of current; control means for regulating the generation of said pulses of current; oscillator means, operatively coupled to said control means, for providing a train of timing pulses; and gating means, responsive to said timing pulses, for enabling said pulses of current to be applied to said load device.
Claim 9
Dependent Claim
113 words
A triggering arrangement for periodically energizing a load device, said triggering arrangement comprising: a source of voltage; an inductor coupled to said source of voltage; switching means, serially connected to said inductor, for controllably coupling said inductor to a lead maintained at ground potential; a capacitor operatively coupled in parallel with said switching means and in series with said load device for generating pulses of current; control means for regulating the generation of said pulses of current; oscillator means, operatively coupled to said control means, for providing a train of timing pulses; and gating means, responsive to said timing pulses, for enabling said pulses of current to be applied to said load device.
Claim 10
Dependent Claim
39 words
The apparatus defined by claim 5 wherein said gating means comprises a silicon controlled rectifier coupled in series with said load device, said serially coupled silicon controlled rectifier and said load device being coupled in parallel with said capacitor.
Claim 11
Dependent Claim
26 words
The apparatus defined by claim 6 wherein said gating means comprises a silicon controlled rectifier coupled in parallel with said serially connected capacitor and load device.
Claim 12
Dependent Claim
43 words
The apparatus defined by claim 8 wherein said control means comprises a monostable multivibrator having a stable state and an unstable state which is assumeD and maintained for a predetermined time duration in response to the application of each of said timing pulses.
Claim 13
Dependent Claim
49 words
The apparatus defined by claim 9 further comprising temperature compensating means, operatively coupled to said control means, for controlling the time duration of said unstable state in accordance with ambient temperature conditions wherein said load device is a diode adapted to emit electromagnetic radiation when said diode is energized.
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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |