Method and apparatus for transferring electrical power by means of capacitive coupling
First Claim
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1. A method for transferring electric power to an electrical load (105), comprising steps of:
- converting a direct electric current into an electric tension wave,applying the electric tension wave in inlet to at least a couple of electric capacitors (125, 130) including a first capacitor (125) and a second capacitor (130),supplying the electrical load (105) with the electric tension in outlet from the capacitors (125, 130)wherein the conversion step comprises;
alternatingly switching a single active switch (155) on and off, andlowering the electrical power dissipated by the active switch (155) to a substantially nil value during each transition step of the active switch (155), wherein the first armature (325) of each of the electrical capacitors (125, 130) is installed on a user device (305), while the second armature (320) of each of the electrical capacitors (125, 130) is installed on a supply device (300),wherein the supply device (300) is separate and independent of the user device (305), so that the user device (305) can be separated from the supply device (300), and wherein the method comprises nearing the user device (305) to the supply device (300) such that the armatures (320, 325) installed on each thereof realize the capacitors (125, 130).
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Abstract
A method and an apparatus for transferring electric power to an electrical load (105); the method comprising steps of: converting a direct electric current into an electric tension wave, applying the electric tension wave in inlet to at least a couple of electric capacitors (125, 130); supplying the electrical load (105) with the electric tension in outlet from the capacitors (125, 130).
17 Citations
19 Claims
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1. A method for transferring electric power to an electrical load (105), comprising steps of:
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converting a direct electric current into an electric tension wave, applying the electric tension wave in inlet to at least a couple of electric capacitors (125, 130) including a first capacitor (125) and a second capacitor (130), supplying the electrical load (105) with the electric tension in outlet from the capacitors (125, 130) wherein the conversion step comprises; alternatingly switching a single active switch (155) on and off, and lowering the electrical power dissipated by the active switch (155) to a substantially nil value during each transition step of the active switch (155), wherein the first armature (325) of each of the electrical capacitors (125, 130) is installed on a user device (305), while the second armature (320) of each of the electrical capacitors (125, 130) is installed on a supply device (300), wherein the supply device (300) is separate and independent of the user device (305), so that the user device (305) can be separated from the supply device (300), and wherein the method comprises nearing the user device (305) to the supply device (300) such that the armatures (320, 325) installed on each thereof realize the capacitors (125, 130). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus (100) for transferring electric power to an electrical load (105), comprising:
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a user device (305) including the electrical load (105), a supply device (300) separate and independent of the user device (305), so that the user device (305) can be separated from the supply device (300), at least a pair of electrical capacitors (125, 130) including a first capacitor (125) and a second capacitor (130), means (135) for converting a direct electric tension into an electric tension wave, means for applying the electric tension wave in inlet to the capacitors (125, 130), means for supplying the electrical load (105) with the electric tension in outlet from the capacitors, wherein the converter means (135) comprise a switching circuit provided at least with; a single active switch (155), means (160) for generating an electrical pilot signal suitable for switching the active switch (155) on and off, and a reactive circuit (145) set up such as to lower the electrical power dissipated by the active switch (155) to a substantially nil value, during each transition step of the active switch (155), wherein a first armature (320) of each of the capacitors (125, 130) is installed on the user device (305), while the second armature (320) of each of the capacitors (125, 130) is installed on the supply device (300). - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification