Encapsulated, integrated power magnetic device and method of manufacture therefor
First Claim
1. A power magnetic device, comprising:
- an isolation transformer having a primary winding and a secondary winding;
a switch coupled to said primary winding;
a rectifier coupled to said secondary winding; and
an encapsulant substantially surrounding said isolation transformer, said switch and said rectifier to join said isolation transformer, said switch and said rectifier into an integrated package, said integrated package having;
a first power input coupled to a first end of said primary winding,a second power input coupled to said switch,first and second power outputs coupled to said rectifier circuit, anda control input coupled to said switch, said control input allowing said switch to be controlled to couple said primary winding to a source of electrical power, said power magnetic device thereby capable of employing said isolation transformer and said rectifier to convert electrical power into DC electrical power.
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0 Petitions
Accused Products
Abstract
A power magnetic device, a method of manufacture therefor and a power converter. The power magnetic device includes: (1) an isolation transformer having a primary winding and a secondary winding, (2) a switch coupled to the primary winding, (3) a rectifier coupled to the secondary winding and (4) an encapsulant substantially surrounding the isolation transformer, the switch and the rectifier to join the isolation transformer, the switch and the rectifier into an integrated package, the integrated package having: (a) a first power input coupled to a first end of the primary winding, (b) a second power input coupled to the switch, (c) first and second power outputs coupled to the rectifier circuit and (d) a control input coupled to the switch, the control input allowing the switch to be controlled to couple the primary winding to a source of electrical power, the power magnetic device thereby capable of employing the isolation transformer and the rectifier to convert electrical power into DC electrical power.
37 Citations
21 Claims
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1. A power magnetic device, comprising:
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an isolation transformer having a primary winding and a secondary winding; a switch coupled to said primary winding; a rectifier coupled to said secondary winding; and an encapsulant substantially surrounding said isolation transformer, said switch and said rectifier to join said isolation transformer, said switch and said rectifier into an integrated package, said integrated package having; a first power input coupled to a first end of said primary winding, a second power input coupled to said switch, first and second power outputs coupled to said rectifier circuit, and a control input coupled to said switch, said control input allowing said switch to be controlled to couple said primary winding to a source of electrical power, said power magnetic device thereby capable of employing said isolation transformer and said rectifier to convert electrical power into DC electrical power. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of manufacturing a power magnetic device, comprising the steps of:
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providing an isolation transformer having a primary winding and a secondary winding; coupling a switch to said primary winding; coupling a rectifier to said secondary winding; and substantially surrounding said isolation transformer, said switch and said rectifier with an encapsulant to join said isolation transformer, said switch and said rectifier into an integrated package, said integrated package having; a first power input coupled to a first end of said primary winding, a second power input coupled to said switch, first and second power outputs coupled to said rectifier circuit, and a control input coupled to said switch, said control input allowing said switch to be controlled to couple said primary winding to a source of electrical power, said power magnetic device thereby capable of employing said isolation transformer and said rectifier to convert electrical power into DC electrical power. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A power converter, comprising:
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control circuitry for applying control signals to a power train; and a power train having a power train input couplable to a source of electrical power and a power train DC output couplable to an electrical load, said power train including; an integrated power magnetic device having; an isolation transformer having a primary winding and a secondary winding; a switch coupled to said primary winding; a rectifier coupled to said secondary winding; an encapsulant substantially surrounding said isolation transformer, said switch and said rectifier to join said isolation transformer, said switch and said rectifier into an integrated package, said integrated package having; a first power input coupled to a first end of said primary winding, a second power input coupled to said switch, first and second power outputs coupled to said rectifier circuit, and a control input coupling said control circuitry to said switch, said control input allow circuitry to control circuitry to control said switch to couple said primary winding to said source of electrical power, said power magnetic device thereby capable of employing said isolation transformer and said rectifier to convert electrical power into DC electrical power. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification