Switching power supply with floating internal supply circuit

Electricity: power supply or regulation systems – Remote sensing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Switching power supply with floating internal supply circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching power supply with floating internal supply circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching power supply with floating internal supply circuit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-12929

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.