Methods and apparatus for utilizing the transformer leakage energy in a power supply
First Claim
Patent Images
1. An apparatus for utilizing inductive leakage energy in a power supply, said apparatus comprising:
- a direct current (DC) input voltage source;
a transformer having a primary side and a secondary side, the primary side having a primary winding and a primary reference point, the secondary side having a secondary winding and a secondary reference point, the transformer exhibiting leakage inductance characteristics;
a switch coupling the DC input voltage source to the transformer primary winding, the switch alternately connecting the DC input voltage source to the transformer primary winding when the switch is closed and disconnecting the DC input voltage source from the transformer primary winding when the switch is open, the transformer acquiring an inductive leakage energy when the switch is closed and releasing the inductive leakage energy when the switch is open;
a rectifier in communication with the transformer primary side for directing the inductive leakage energy out of the transformer when the switch is open; and
a capacitor in communication with the rectifier for receiving, storing, and releasing the inductive leakage energy obtained from the transformer through the rectifier such that the capacitor establishes an average energy source, the rectifier and the capacitor defining a RC circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for utilizing leakage energy from a transformer within a power supply, including in one embodiment, a transformer having a primary winding and a secondary winding in communication with a switch and a capacitor, a rectifier and a load within the power supply.
-
Citations
22 Claims
-
1. An apparatus for utilizing inductive leakage energy in a power supply, said apparatus comprising:
-
a direct current (DC) input voltage source;
a transformer having a primary side and a secondary side, the primary side having a primary winding and a primary reference point, the secondary side having a secondary winding and a secondary reference point, the transformer exhibiting leakage inductance characteristics;
a switch coupling the DC input voltage source to the transformer primary winding, the switch alternately connecting the DC input voltage source to the transformer primary winding when the switch is closed and disconnecting the DC input voltage source from the transformer primary winding when the switch is open, the transformer acquiring an inductive leakage energy when the switch is closed and releasing the inductive leakage energy when the switch is open;
a rectifier in communication with the transformer primary side for directing the inductive leakage energy out of the transformer when the switch is open; and
a capacitor in communication with the rectifier for receiving, storing, and releasing the inductive leakage energy obtained from the transformer through the rectifier such that the capacitor establishes an average energy source, the rectifier and the capacitor defining a RC circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An apparatus for transferring inductive leakage energy within a power supply to a useful load comprising:
-
a direct current (DC) input voltage source;
a transformer having a primary winding, a primary reference point, a secondary winding and a secondary reference point, the transformer exhibiting leakage inductance characteristics when operated;
a switch coupling the DC input voltage source to the transformer primary winding, the switch alternately connecting the DC input voltage source to the transformer primary winding when the switch is closed and disconnecting the DC input voltage source from the transformer primary winding when the switch is open, the transformer acquiring an inductive leakage energy when the switch is closed and releasing the inductive leakage energy when the switch is open;
a directing means in communication with the switch to direct the inductive leakage energy out of the transformer when the switch is open;
a storage means in communication with the directing means for receiving, storing, and releasing the inductive leakage energy obtained from the transformer through the directing means such that the storage means establishes; and
a load in communication with the storage means, the load receiving energy released from the average energy source. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A method for using inductive leakage energy within a power supply comprising the steps of:
-
providing a direct current (DC) input voltage source;
coupling a transformer to the DC input voltage source, the transformer exhibiting leakage inductance characteristics;
opening and closing a switch in communication with the DC input voltage source and the transformer primary winding, the transformer acquiring an inductive leakage energy when the switch is closed and releasing the inductive leakage energy when the switch is open;
directing the inductive leakage energy out of the transformer when the switch is open; and
receiving, storing, and releasing the inductive leakage energy obtained from the transformer by establishing an average energy source. - View Dependent Claims (19, 20, 21, 22)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeHoneywell International Inc.
-
Original AssigneeHoneywell International Inc.
-
InventorsKennedy, Dennis M.
-
Primary Examiner(s)Riley, Shawn
-
Application NumberUS09/661,936Time in Patent Office355 DaysField of Search363/21.02, 363/21.03, 363/21.01, 363/97, 363/131US Class Current363/21.01CPC Class CodesH02M 1/009 having two or more independ...H02M 3/1552 Boost converters exploiting...H02M 3/335 using semiconductor devices...
