Parallel-tuned pick-up system with multiple voltage outputs
First Claim
1. An ICPT system pick-up comprising:
- a pick-up coil capable of generating a voltage by magnetic induction from a primary conductive pathway, the pick-up coil being part of a pick-up resonant circuit having a pick-up resonant frequency and a tuning capacitor connected in parallel with the pick-up coil;
a first output associated with a first controller to substantially control a voltage provided by the first output;
a current transformer connected in series with the pick-up resonant circuit;
one or more additional outputs associated with the current transformer; and
one or more additional controllers associated with each of the one or more additional outputs to substantially control a voltage provided by the one or more additional outputs, whereby the voltages of the first output and the one or more additional outputs are independently controllable.
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Accused Products
Abstract
A pick-up is provided for an Inductively Coupled Power Transfer (ICPT) system having a parallel tuned resonant pick-up circuit. The pick-up has a plurality of independently controllable power supply outputs. This allows a first output to supply a high voltage load (e.g. 300V-550V) and one or more additional outputs for supplying other loads such as control circuitry which may only require 24V. The one or more additional outputs may be supplied via a current transformer connected in series with the resonant pick-up circuit. Control for each output may be achieved by partially or completely decoupling the pick-up from a primary conductive path of the ICPT system.
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Citations
39 Claims
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1. An ICPT system pick-up comprising:
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a pick-up coil capable of generating a voltage by magnetic induction from a primary conductive pathway, the pick-up coil being part of a pick-up resonant circuit having a pick-up resonant frequency and a tuning capacitor connected in parallel with the pick-up coil;
a first output associated with a first controller to substantially control a voltage provided by the first output;
a current transformer connected in series with the pick-up resonant circuit;
one or more additional outputs associated with the current transformer; and
one or more additional controllers associated with each of the one or more additional outputs to substantially control a voltage provided by the one or more additional outputs, whereby the voltages of the first output and the one or more additional outputs are independently controllable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 36)
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10. An ICPT system pick-up comprising:
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a pick-up coil capable of generating a voltage by magnetic induction from a primary conductive pathway, the pick-up coil being part of a pick-up resonant circuit having a pick-up resonant frequency and a tuning capacitor connected in parallel with the pick-up coil;
a first output associated with a first controller to control power transfer from the primary conductive pathway to the pick-up coil to correspond to a power required by a first output load connectable to the first output;
a current transformer connected in series with the pick-up resonant circuit;
one or more additional outputs associated with the current transformer; and
one or more additional controllers associated with each of the one or more additional outputs to control power transfer from the primary conductive pathway to the pick-up coil to correspond to a power required by one or more additional output loads connectable to each of the one or more additional outputs. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An adaptor circuit for an ICPT system, the adaptor circuit comprising a current transformer connectable in series with a parallel-tuned pick-up of the ICPT system;
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an output associated with a controller operable to match a power transfer from a primary conductive pathway of the ICPT system with a power required by an output load connectable to the output. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 35)
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30. A method for controlling at least one independently controllable output from a parallel tuned pick-up of an ICPT system, the method comprising the steps of:
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interconnecting a first current transformer in series with the parallel tuned pick-up; and
providing a controller adapted to match a power transfer from a primary conductive pathway of the ICPT system with a power required by an output load connectable to a first independently controllable output. - View Dependent Claims (31, 32, 33, 34)
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37. An ICPT pick-up having two or more outputs comprising:
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a pick-up resonant circuit, the pick-up resonant circuit comprising a pick-up coil; and
a tuning capacitor connected in parallel with the pick-up coil; and
a controller operable to independently control a respective voltage of each of the two or more outputs.
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38. An ICPT pick-up having two or more outputs comprising:
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a pick-up resonant circuit, the pick-up resonant circuit comprising;
a pick-up coil; and
a tuning capacitor connected in parallel with the pick-up coil; and
a controller operable to independently control a power transferred from a primary conductive pathway of the ICPT pick-up to the pick-up coil for each of the two or more outputs.
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39-41. -41. (canceled)
Specification