Patent US3577064A successfully refreshed from Google Patents.
US3577064A
Expired / Lapsed
US
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Automatic error detection and indication in a remotely programmable regulated power supply
Assignee: Forbro Design Corp
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Filing: 1969-03-12
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Granted: 1971-05-04
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Expires: 1989-03-12
Abstract
Abstract A programmable regulated power supply includes internal control circuits for determining the output voltage and digital visual read-out indicators showing the output voltage called for by the control circuits. In the operation of this power supply there are a number of predetermined circuit conditions which may result in the actual output voltage being different from the called for voltage. These conditions are detected and indicated individually and collectively. Certain of these conditions when detected serve to also extinguish the visual indicators.
Inventors
- 👤 Sarkis Nercessian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:28
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
92 words
In a regulated power supply, error-indicating means including the combination of; a source of voltage to be regulated; a pair of output terminals; a series circuit including said terminals, said source of voltage and a pass transistor; means including means for controlling said pass transistor for programming the voltage across said terminals; means for digitally indicating the terminal voltage called for by said programming means; and a visual error-indicator means for indicating predetermined circuit conditions which tend to prevent said terminal voltage from attaining the voltage called for by said programming means.
Claim 2
Dependent Claim
92 words
In a regulated power supply, error-indicating means including the combination of; a source of voltage to be regulated; a pair of output terminals; a series circuit including said terminals, said source of voltage and a pass transistor; means including means for controlling said pass transistor for programming the voltage across said terminals; means for digitally indicating the terminal voltage called for by said programming means; and a visual error-indicator means for indicating predetermined circuit conditions which tend to prevent said terminal voltage from attaining the voltage called for by said programming means.
Claim 3
Dependent Claim
24 words
Regulated power supply error-indicating means as set forth in claim 1; wherein one of said predetermined circuit conditions is overtemperature of said pass transistor.
Claim 4
Dependent Claim
26 words
Regulated power supply error-indicating means as set forth in claim 1; Wherein one of said predetermined circuit conditions is excessive current flowing to said output terminals.
Claim 5
Dependent Claim
35 words
Regulated power supply error-indicating means as set forth in claim 1; an OR gate coupled to said error-indicating means; and a plurality of circuits coupled to said OR gate responsive to said predetermined circuit conditions.
Claim 6
Dependent Claim
21 words
Regulated power supply error-indicating means as set forth in claim 4; and including individual visual indicators designating said predetermined circuit conditions.
Claim 7
Dependent Claim
40 words
Regulated power supply error-indicating means as set forth in claim 1; means for energizing said voltage indicating means to provide an illuminated display; and means for interrupting said energizing means responsive to said predetermined circuit conditions for extinguishing said illumination.
Claim 8
Dependent Claim
26 words
Regulated power supply error-indicating means as set forth in claim 1; wherein one of said predetermined circuit conditions is uncalled for voltage across said output terminals.
Claim 9
Dependent Claim
25 words
Regulated power supply error-indicating means as set forth in claim 1; wherein one of said predetermined circuit conditions is reverse voltage across said output terminals.
Claim 10
Dependent Claim
25 words
Regulated power supply error-indicating means as set forth in claim 1; wherein one of said predetermined circuit conditions is improper programming of said terminal voltage.
Claim 11
Dependent Claim
84 words
In an error prevention and indicating system, the combination of; a resistance feedback voltage regulated power supply comprising: a source of reference voltage including a Zener diode, a plurality of reference resistors, a control amplifier, at least one pass transistor, a voltage control feedback resistor, a pair of output terminals and a source of voltage to be regulated; means for detecting a plurality of abnormal operating conditions in said power supply; and means including an OR gate for visually indicating said abnormal operating conditions.
Claim 12
Dependent Claim
84 words
In an error prevention and indicating system, the combination of; a resistance feedback voltage regulated power supply comprising: a source of reference voltage including a Zener diode, a plurality of reference resistors, a control amplifier, at least one pass transistor, a voltage control feedback resistor, a pair of output terminals and a source of voltage to be regulated; means for detecting a plurality of abnormal operating conditions in said power supply; and means including an OR gate for visually indicating said abnormal operating conditions.
Claim 13
Dependent Claim
69 words
An error prevention and indicating system as set forth in claim 10; wherein said detecting means includes a normally nonconducting transistor including a base, a collector and an emitter; and wherein said visual-indicating means is coupled to said collector for indicating a conductive condition of said transistor; and wherein said base is connected by an OR gate means to a plurality of abnormal operating conditions of said power supply.
Claim 14
Dependent Claim
69 words
An error prevention and indicating system as set forth in claim 10; wherein said power supply includes visual numerical terminal voltage readout means; a source of power for energizing said readout means; power interruption means connected between said source of power and said readout means; and means responsive to detected abnormal operating conditions of said power supply for operating said power interruption means to extinguish said visual readout means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |