Electricity: power supply or regulation systems – Remote sensing
Patent
1976-07-02
1977-06-14
Goldberg, Gerald
Electricity: power supply or regulation systems
Remote sensing
321 2, 323DIG1, H02M 7217, H02M 7515
Patent
active
040300242
ABSTRACT:
A preregulator power supply having drive and control circuits which are isolated or floating alternately from the input and output leads to permit direct coupling to the power switching regulator device without requiring isolation devices such as transformers or optical isolators. This is achieved by an added series winding on the output choke, the common junction of which is connected to the output of the switching regulator and also forms the return lead for the floating drive and control circuits, while the added winding provides a sample output voltage for comparison by the floating drive and control circuits to control the width of pulses fed to the switching regulator device. A free-wheeling diode is also connected from the output of the switching regulator to an output terminal to maintain current in the choke during the OFF cycle of the switching regulator and provide several isolated regulated voltages in windings magnetically coupled to the choke.
REFERENCES:
patent: 3806791 (1974-04-01), Johnson
patent: 3889177 (1975-06-01), Fendrich, Jr.
"Power Supply Uses Switching Preregulation" by J. S. Riordon Electronics Mar. 9, 1962; pp. 62-64.
"An Inexpensive Switch Mode Power Supply" by R. Curtis Motorola, Inc.; CER 108 1973.
IBM Tech. Disc. Bull. vol. 17, No. 9 Feb. 1975 pp. 2666-2667, "A-D Transistor Switching Reg. Controller" by Calvo et al.
Chambers Derek
Wang Dee
Arnold Herbert W.
Bartlett Milton D.
Goldberg Gerald
Pannone Joseph D.
Raytheon Company
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