Inductive power receiver
An inductive power receiver, comprising: a receiving coil; a bridge circuit configured to connect to the receiving coil comprising: a first branch including a first semiconductor device; a second branch including a second semiconductor device; a third branch including a first capacitor; and a forth branch including a second capacitor, and a controller configured to control at least one of the first semiconductor device and the second semiconductor device to regulate power provided to a load.
1. An inductive power receiver, comprising:
a. a receiving coil;
b. a bridge circuit adapted to couple to the receiving coil, the bridge circuit comprising:
i. a first branch including a first semiconductor device;
ii. a second branch including a second semiconductor device;
iii. a third branch including a first capacitor; and
iv. a fourth branch including a second capacitor, and
c. a controller adapted to control at least one of the first semiconductor device and the second semiconductor device to regulate power provided to a load.
2. The inductive power receiver as claimed in claim 1 , wherein the first semiconductor device is a first semiconductor switch.
3. The inductive power receiver as claimed in claim 2 , wherein the second semiconductor device is a diode.
4. The inductive power receiver as claimed in claim 2 , wherein the second semiconductor device is a second semiconductor switch.
5. The inductive power receiver as claimed in claim 1 , wherein the receiver includes a smoothing capacitor coupled in parallel across the load.
6. The inductive power receiver as claimed in claim 1 , wherein the bridge circuit is an H-bridge circuit.
7. The inductive power receiver as claimed claim 1 , wherein the receiving coil is coupled to a resonant capacitor.
8. The inductive power receiver as claimed in claim 7 , wherein the resonant capacitor is coupled in series with the receiving coil.
9. The inductive power receiver as claimed in claim 1 , wherein the first semiconductor device is a first semiconductor switch and wherein the first branch includes a further semiconductor switch coupled in series with the first semiconductor switch.
10. The inductive power receiver as claimed in claim 1 , wherein the receiver includes a detuning network, comprising a detuning component and a detuning switch, the detuning switch adapted to detune the receiving coil.