Switching techniques in regulated d. c. power supplies

• US 3,323,034 A
• Filed: 06/05/1963
• Issued: 05/30/1967
• Est. Priority Date: 06/05/1963
• Status: Expired due to Term

• Current Assignee: George Gautherin, Lester Dubin
• Original Assignee: George Gautherin, Lester Dubin
• Inventors: Dubin, Lester, GEORGE GAUTHERIN
• Application Number:
  US04/285,829
• Time in Patent Office: 1,455 Days
• US Class Current: 363/86
• CPC Class Codes: H02M 1/4208 Arrangements for improving power factor of AC input
• CPC Class Codes: H02M 3/137 with automatic control of output voltage or current, e.g. switching regulators
• CPC Class Codes: H02M 3/156 with automatic control of output voltage or current, e.g. switching regulators
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Claims

1. A SWITCHING TYPE REGULATED D.C. POWER SUPPLY ADAPTED TO BE ENERGIZED FROM A RECTIFIED ALTERNATING CURRENT SOURCE OF VARIABLE FREQUENCY, COMPRISING AN OUTPUT CIRCUIT FOR DELIVERING A D.C. OUTPUT, SEMICONDUCTIVE SWITCHING MEANS HAVING A SWITCH CIRCUIT ADAPTED TO CONDUCT UNIPOLAR CURRENT BETWEEN SAID SOURCE AND SAID OUTPUT CIRCUIT FOR REGULATING SAID OUTPUT, ERROR SENSING MEANS OPERATIVELY CONNECTED TO SAID OUTPUT CIRCUIT, SYNCHRONIZED WIDE BAND SWITCH CONTROL MEANS OPERATIVELY COUPLED TO SAID SWITCHING MEANS AND TO SAID ERROR SENSING MEANS FOR SWITCHING SAID SWITCHING, MEANS, SAID SWITCH CONTROL MEANS INCLUDING RESET MEANS CONNECTED TO BE RESPONSIVE TO THE AMPLITUDE OF SAID SOURCE FOR CONDITIONING SAID CONTROL MEANS IN SYNCHRONISM WITH SAID SOURCE, SAID CONTROL MEANS BEING RESPONSIVE TO SAID RESET MEANS AND SAID ERROR SENSING MEANS WHEREBY SAID SWITCH CIRCUIT IS RENDERED CONDUCTIVE DURING THE LEADING PERIOD OF SAID ALTERNATING CURRENT SOURCE TO REGULATE THE AMPLITUDE OF SAID D.C. OUTPUT, SAID SWITCH CONTROL MEANS ALSO COMPRISING LATCHING MEANS HAVING A MEMORY CHARACTERISTIC AND OPERABLE TO PERIODICALLY DEACTIVATE SAID CONTROL MEANS AND HOLDING SAME DEACTIVATED IN SYNCHRONISM WITH THE CYCLING OF SAID SOURCE.