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US3213346A Expired / Lapsed US ⏱️ 0.0 years remaining

Transistor power supply

Assignee: King Radio Corp
•
Filing: 1962-11-23
•
Granted: 1965-10-19
•
Expires: 1982-11-23
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Abstract

No abstract record available.

Inventors

  • 👤 Jr Edward J King

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 11:54
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3385; H02M3/3387; H02M3/3388

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 247 words
AN IMPROVED TRANSISTORIZED POWER SUPPLY COMPRISING: (A) A SATURABLE CORE TRANSFORMER HAVING A CENTER TAPPED INPUT AND A TAPPED OUTPUT WINDING; (B) EACH SIDE OF SAID CENTER TAPPED INPUT WINDING HAVING A SECOND TAP BETWEEN ITS END AND THE CENTER TAP; (C) A PAIR OF TRANSISTORS EACH HAVING A COLLECTOR, EMITTER AND A BASE; (D) EACH OF SAID EMITTERS CONNECTED TO A SECOND TAP; (E) A FIRST RESISTANCE MEANS CONNECTED BETWEEN EACH OF THE ENDS OF SAID INPUT WINDING AND SAID CORRESPONDING BASES; (F) A SECOND RESISTIVE MEANS CONNECTED BETWEEN EACH OF SAID BASES AND GROUND; (G) EACH OF SAID COLLEFTORS CONNECTED TO GROUND; (H) A DIRECT CURRENT SOURCE HAVING A POSITIVE AND NEGATIVE TERMINAL, SAID POSITIVE TERMINAL CONNECTED TO SAID CENTER TAP ON SAID INPUT WINDING AND SAID NEGATIVE TERMINAL CONNECTED TO GROUND; (I) A FIRST AND SECOND DIODE HAVING THEIR ANODES CONNECTED TO THE ENDS RESPECTIVELY OF SAID OUTPUT WINDING AND THEIR CATHODES CONNECTED TOGETHER; (J) A LOAD CONNECTED BETWEEN SAID CATHODES AND GROUND; (K) A SECOND SET OF DIODES CONNECTED RESPECTIVELY BETWEEN THE ENDS OF SAID OUTPUT WINDING AND THE CORRESPONDING BASE OF SAID TRANSISTORS AND POLED TO CONDUCT CURRENT FROM SAID BASE TO SAID LOAD; WHEREBY AN INCREASE IN LOAD CURRENT WILL RESULT IN AN INCREASE IN CURRENT THROUGH SAID SECOND RESISTIVE MEANS INCREASE IN CURRENT THROUGH SAID SECOND RESISTIVE MEANS IN CREASING SAID BASE TO EM ITTER CURRENT INCREASING THE EFFICIENCY OF SAID TRANSISTORS AND REDUCING THE VOLTAGE DROP AT SAID LOAD.
Claim 2
Dependent Claim 247 words
AN IMPROVED TRANSISTORIZED POWER SUPPLY COMPRISING: (A) A SATURABLE CORE TRANSFORMER HAVING A CENTER TAPPED INPUT AND A TAPPED OUTPUT WINDING; (B) EACH SIDE OF SAID CENTER TAPPED INPUT WINDING HAVING A SECOND TAP BETWEEN ITS END AND THE CENTER TAP; (C) A PAIR OF TRANSISTORS EACH HAVING A COLLECTOR, EMITTER AND A BASE; (D) EACH OF SAID EMITTERS CONNECTED TO A SECOND TAP; (E) A FIRST RESISTANCE MEANS CONNECTED BETWEEN EACH OF THE ENDS OF SAID INPUT WINDING AND SAID CORRESPONDING BASES; (F) A SECOND RESISTIVE MEANS CONNECTED BETWEEN EACH OF SAID BASES AND GROUND; (G) EACH OF SAID COLLEFTORS CONNECTED TO GROUND; (H) A DIRECT CURRENT SOURCE HAVING A POSITIVE AND NEGATIVE TERMINAL, SAID POSITIVE TERMINAL CONNECTED TO SAID CENTER TAP ON SAID INPUT WINDING AND SAID NEGATIVE TERMINAL CONNECTED TO GROUND; (I) A FIRST AND SECOND DIODE HAVING THEIR ANODES CONNECTED TO THE ENDS RESPECTIVELY OF SAID OUTPUT WINDING AND THEIR CATHODES CONNECTED TOGETHER; (J) A LOAD CONNECTED BETWEEN SAID CATHODES AND GROUND; (K) A SECOND SET OF DIODES CONNECTED RESPECTIVELY BETWEEN THE ENDS OF SAID OUTPUT WINDING AND THE CORRESPONDING BASE OF SAID TRANSISTORS AND POLED TO CONDUCT CURRENT FROM SAID BASE TO SAID LOAD; WHEREBY AN INCREASE IN LOAD CURRENT WILL RESULT IN AN INCREASE IN CURRENT THROUGH SAID SECOND RESISTIVE MEANS INCREASE IN CURRENT THROUGH SAID SECOND RESISTIVE MEANS IN CREASING SAID BASE TO EM ITTER CURRENT INCREASING THE EFFICIENCY OF SAID TRANSISTORS AND REDUCING THE VOLTAGE DROP AT SAID LOAD.

References Cited (Backward Citations)

US2321357A Cited
US2948841A Cited
US3004226A Cited
AT222762B Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-10-18 1969-04-19 1969-10-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-10-18 1973-04-19 1973-10-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-10-18 1977-04-19 1977-10-19 $7700.00 Window Closed / Lapsed

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