Non-contact type power receiver and non-contact type battery
First Claim
Patent Images
1. A non-contact type power receiver comprising:
- a plurality of power receiving coils receiving power in a non-contact manner;
a plurality of rectifying units switching to rectify the power received from the plurality of power receiving coils; and
a control unit controlling the switching by the plurality of rectifying units to control respective levels of the power rectified by the plurality of rectifying units,wherein each of the plurality of rectifying units has a full bridge structure including first and second switches forming one leg and third and fourth switches forming the other leg connected to the one leg in parallel, andwherein the control unit compares a carrier signal having a frequency higher than a transmission frequency of the power transmitted to the plurality of power receiving coils with a current reference signal of the received power, and controls the switching of the first and second switches using a pulse width modulation (PWM) scheme, depending on a comparison result.
2 Assignments
0 Petitions
Accused Products
Abstract
A non-contact type power receiver may includes: a plurality of power receiving coils receiving power in a non-contact manner; a plurality of rectifying units switching to rectify the power received from the plurality of power receiving coils; and a control unit controlling the switching by the plurality of rectifying units to control respective levels of the power rectified by the plurality of rectifying units.
-
Citations
10 Claims
-
1. A non-contact type power receiver comprising:
-
a plurality of power receiving coils receiving power in a non-contact manner; a plurality of rectifying units switching to rectify the power received from the plurality of power receiving coils; and a control unit controlling the switching by the plurality of rectifying units to control respective levels of the power rectified by the plurality of rectifying units, wherein each of the plurality of rectifying units has a full bridge structure including first and second switches forming one leg and third and fourth switches forming the other leg connected to the one leg in parallel, and wherein the control unit compares a carrier signal having a frequency higher than a transmission frequency of the power transmitted to the plurality of power receiving coils with a current reference signal of the received power, and controls the switching of the first and second switches using a pulse width modulation (PWM) scheme, depending on a comparison result. - View Dependent Claims (2, 3)
-
-
4. A non-contact type power receiver comprising:
-
a plurality of power receiving coils receiving power in a non-contact manner; a plurality of rectifying units switching to rectify the power received from the plurality of power receiving coils; and a control unit controlling the switching by the plurality of rectifying units, depending on coupling coefficients between each of the plurality of power receiving coils and a plurality of power transmitting coils which transmit the power to the plurality of power receiving coils, to control respective levels of the power rectified by the plurality of rectifying units, wherein each of the plurality of rectifying units has a full bridge structure including first and second switches forming one leg and third and fourth switches forming the other leg connected to the one leg in parallel, and wherein the control unit compares a carrier signal having a frequency higher than a transmission frequency of the power transmitted to the plurality of power receiving coils with a current reference signal of the received power, and controls the switching of the first and second switches using a pulse width modulation (PWM) scheme, depending on a comparison result. - View Dependent Claims (5, 6)
-
-
7. A non-contact type battery comprising:
-
a plurality of power receiving coils receiving power in a non-contact manner; a plurality of rectifying units switching to rectify the power received from the plurality of power receiving coils; a plurality of regulators regulating the power rectified by the plurality of rectifying units into charging power; a plurality of battery cells charged with the charging power from the plurality of regulators; and a control unit controlling the switching by the plurality of rectifying units to control respective levels of the power charged in the plurality of battery cells, wherein each of the plurality of rectifying units has a full bridge structure including first and second switches forming one leg and third and fourth switches forming the other leg connected to the one leg in parallel, and wherein the control unit compares a carrier signal having a frequency higher than a transmission frequency of the power transmitted to the plurality of power receiving coils with a current reference signal of the received power, and controls the switching of the first and second switches using a pulse width modulation (PWM) scheme, depending on a comparison result. - View Dependent Claims (8, 9, 10)
-
Specification