Inductive Powering Apparatus for Capsule Device
First Claim
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1. A capsule device comprising:
- an archival memory for storing data captured by the capsule device while travelling inside a gastrointestinal (GI) track of a human body;
a transmitter to transmit the data after the capsule device exits from the human body;
a first PCB (printed circuit board), wherein at least one electronic component for the capsule device is mounted on the first PCB;
a secondary coil to generate an induced secondary voltage when a first alternating magnetic field is coupled to the secondary coil externally, wherein the first alternating magnetic field also causes a second induced voltage or current on at least one first trace of the first PCB;
a power conversion device to convert the induced secondary voltage into a DC output voltage for the capsule device, wherein the power conversion device comprises a voltage booster to generate the DC output voltage from a lower induced secondary voltage, and wherein the lower induced secondary voltage requires a lower first alternating magnetic field that causes a lower second induced voltage on said at least one first trace of the first PCB; and
a capsule housing, wherein the archival memory, the transmitter, the first PCB, the secondary coil, and the power conversion device are sealed in the capsule housing.
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Abstract
A capsule device with an inductive powering apparatus is disclosed. The capsule device comprises a secondary coil to generate an induced secondary voltage when a first alternating magnetic field is coupled to the secondary coil externally. Embodiments of the present invention utilize a power conversion device to convert the induced secondary voltage into a DC output voltage for the capsule device. In particular, the power conversion device comprises a voltage booster to generate the DC voltage from a lower induced secondary voltage. Accordingly, the system can be operated using a lower secondary voltage, which will reduce the influence of magnetic flux on the circuit boards inside the capsule.
40 Citations
22 Claims
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1. A capsule device comprising:
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an archival memory for storing data captured by the capsule device while travelling inside a gastrointestinal (GI) track of a human body; a transmitter to transmit the data after the capsule device exits from the human body; a first PCB (printed circuit board), wherein at least one electronic component for the capsule device is mounted on the first PCB; a secondary coil to generate an induced secondary voltage when a first alternating magnetic field is coupled to the secondary coil externally, wherein the first alternating magnetic field also causes a second induced voltage or current on at least one first trace of the first PCB; a power conversion device to convert the induced secondary voltage into a DC output voltage for the capsule device, wherein the power conversion device comprises a voltage booster to generate the DC output voltage from a lower induced secondary voltage, and wherein the lower induced secondary voltage requires a lower first alternating magnetic field that causes a lower second induced voltage on said at least one first trace of the first PCB; and a capsule housing, wherein the archival memory, the transmitter, the first PCB, the secondary coil, and the power conversion device are sealed in the capsule housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A capsule device comprising:
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an archival memory for storing data captured by the capsule device while travelling inside gastrointestinal (GI) track of a human body; a transmitter to transmit the data after the capsule device exits from the human body; a secondary coil to generate an induced secondary voltage when a first alternating magnetic field is coupled to the secondary coil externally, wherein the secondary coil is implemented using a secondary-coil PCB and the secondary-coil PCB includes multiple turns of conductive traces; a power conversion device to convert the induced secondary voltage into a DC output voltage for the capsule device; and a capsule housing, wherein the archival memory, the transmitter, the secondary coil, and the power conversion device are sealed in the capsule housing. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification