Apparatus and associated method
First Claim
Patent Images
1. An apparatus comprising a power providing arrangement for a field powered device having a coil antenna for receiving a wireless signal, the power providing arrangement comprising:
- a first capacitor configured to be coupled to the coil antenna, the first capacitor configured to store energy obtained from the wireless signal received by the coil antenna, up to a first stored energy level, and configured to provide said energy to power the field powered device;
a second capacitor arranged in parallel with the first capacitor via a switch;
the switch providing at least a connected state in which the first capacitor and the second capacitor are connected in parallel and configured to both store the energy obtained from the wireless signal up to a second stored energy level, greater than the first stored energy level, and configured to provide said energy to power the field powered device and a disconnected state in which the second capacitor is disconnected from the first capacitor;
the switch configured to transition from the disconnected state to the connected state based on particular signalling received from a remote device.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus comprising a power providing arrangement for a field powered device having a coil antenna for receiving a wireless signal, the power providing arrangement comprising:
- a first capacitor configured to be coupled to the coil antenna, the first capacitor configured to store energy obtained from the wireless signal received by the coil antenna, up to a first stored energy level, and configured to provide said energy to power the field powered device;
- a second capacitor arranged in parallel with the first capacitor via a switch;
- the switch providing at least a connected state in which the first capacitor and the second capacitor are connected in parallel and configured to both store the energy obtained from the wireless signal up to a second stored energy level, greater than the first stored energy level, and configured to provide said energy to power the field powered device and a disconnected state in which the second capacitor is disconnected from the first capacitor;
- the switch configured to transition from the disconnected state to the connected state based on particular signalling received from a remote device.
28 Citations
15 Claims
-
1. An apparatus comprising a power providing arrangement for a field powered device having a coil antenna for receiving a wireless signal, the power providing arrangement comprising:
-
a first capacitor configured to be coupled to the coil antenna, the first capacitor configured to store energy obtained from the wireless signal received by the coil antenna, up to a first stored energy level, and configured to provide said energy to power the field powered device; a second capacitor arranged in parallel with the first capacitor via a switch; the switch providing at least a connected state in which the first capacitor and the second capacitor are connected in parallel and configured to both store the energy obtained from the wireless signal up to a second stored energy level, greater than the first stored energy level, and configured to provide said energy to power the field powered device and a disconnected state in which the second capacitor is disconnected from the first capacitor; the switch configured to transition from the disconnected state to the connected state based on particular signalling received from a remote device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
-
-
14. A method comprising:
-
providing for the charging of a first capacitor from a wireless signal received by a coil antenna, up to a first stored energy level, for providing energy to power a field powered device; and based on particular signalling received from a remote device; providing for transition of a switch from a disconnected state to a connected state, wherein in the connected state the first capacitor and a second capacitor are connected in parallel and configured to both store the energy obtained from the wireless signal, up to a second stored energy level, greater than the first stored energy level, for providing said energy to power the field powered device, and wherein in the disconnected state the second capacitor is disconnected from the first capacitor.
-
Specification