Power transmitting apparatus, control method, and computer readable storage medium
First Claim
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1. A power transmitting apparatus that performs power transmission to a power receiving apparatus, the power transmission apparatus comprising:
- an amplifier that includes a switching element;
a detection unit configured to detect a value for evaluating the efficiency of the amplifier at a time when the switching element transitions from an off state to an on state; and
a power control unit configured to increase a voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detection unit indicates a second state in which the efficiency of the amplifier is less than an efficiency of the amplifier in a first state and to decrease the voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detection unit indicates a third state in which the efficiency of the amplifier is less than the efficiency of the amplifier in the first state,wherein the power control unit is further configured to maintain the voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detection unit indicates the first state.
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Abstract
A power transmitting apparatus that performs power transmission to a power receiving apparatus includes an amplifier including a switching element, receives a load power amount from the power receiving apparatus, detects a value for evaluating the efficiency of the amplifier, and based on the load power amount and the detected value for evaluating the efficiency, increases or reduces a voltage that is to be supplied to the amplifier.
14 Citations
18 Claims
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1. A power transmitting apparatus that performs power transmission to a power receiving apparatus, the power transmission apparatus comprising:
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an amplifier that includes a switching element; a detection unit configured to detect a value for evaluating the efficiency of the amplifier at a time when the switching element transitions from an off state to an on state; and a power control unit configured to increase a voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detection unit indicates a second state in which the efficiency of the amplifier is less than an efficiency of the amplifier in a first state and to decrease the voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detection unit indicates a third state in which the efficiency of the amplifier is less than the efficiency of the amplifier in the first state, wherein the power control unit is further configured to maintain the voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detection unit indicates the first state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18)
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10. A control method of a power transmitting apparatus that performs power transmission to a power receiving apparatus having an amplifier that includes a switching element, comprising:
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detecting a value for evaluating the efficiency of the amplifier at a time when the switching element transitions from an off state to an on state; and increasing a voltage supplied to the amplifier in response to the detected value for evaluating the efficiency of the amplifier indicating a second state in which the efficiency of the amplifier is less than an efficiency of the amplifier in a first state; decreasing the voltage supplied to the amplifier in response to the detected value for evaluating the efficiency of the amplifier indicating a third state in which the efficiency of the amplifier is less than the efficiency of the amplifier in the first state; and maintaining the voltage supplied to the amplifier in response to the detected value for evaluating the efficiency of the amplifier indicating the first state.
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11. A non-transitory computer readable storage medium storing a program that causes a computer to execute a control method of a power transmitting apparatus that performs power transmission to a power receiving apparatus having an amplifier that includes a switching element, the method comprising:
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detecting a value for evaluating the efficiency of the amplifier at a time when the switching element transitions from an off state to an on state; and increasing a voltage supplied to the amplifier in response to the detected value for evaluating the efficiency of the amplifier indicating a second state in which the efficiency of the amplifier is less than an efficiency of the amplifier in a first state; decreasing the voltage supplied to the amplifier in response to the detected value for evaluating the efficiency of the amplifier indicating a third state in which the efficiency of the amplifier is less than the efficiency of the amplifier in the first state; and maintaining the voltage supplied to the amplifier in response to the detected value for evaluating the efficiency of the amplifier indicating the first state.
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12. A power transmitting apparatus that performs power transmission to a power receiving apparatus, the power transmission apparatus comprising:
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an amplifier that includes a switching element; a detector configured to detect a value for evaluating the efficiency of the amplifier at a time when the switching element transitions from an off state to an on state; and a power controller configured to increase a voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detector indicates a second state in which the efficiency of the amplifier is less than an efficiency of the amplifier in a first state and to decrease the voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detector indicates a third state in which the efficiency of the amplifier is less than the efficiency of the amplifier in the first state, wherein the power controller is further configured to maintain the voltage supplied to the amplifier in a case where the value for evaluating the efficiency of the amplifier that was detected by the detector indicates the first state.
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13. A power transmitting apparatus that performs power transmission to a power receiving apparatus, the power transmitting apparatus comprising:
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an amplifier that switches a DC voltage supplied to the amplifier using a pulse and converts the DC voltage to an AC voltage; a power transmitting unit configured to transmit power using an output from the amplifier to the power receiving apparatus; a detecting unit configured to detect a value indicating whether degradation of power transmission efficiency of the power transmitting unit, caused by switching loss of the amplifier, exists; and a control unit configured to increase the DC voltage supplied to the amplifier in a case where the value indicating whether degradation of power transmission efficiency exists that was detected by the detecting unit indicates a second state in which the power transmission efficiency of the amplifier is less than the power transmission efficiency of the amplifier in a first state and to decrease the DC voltage supplied to the amplifier in a case where the value indicating whether degradation of power transmission efficiency exists that was detected by the detecting unit indicates a third state in which the power transmission efficiency of the amplifier is less than the power transmission efficiency of the amplifier in the first state, wherein the control unit is further configured to maintain the DC voltage supplied to the amplifier in a case where the value indicating whether degradation of power transmission efficiency exists that was detected by the detecting unit indicates the first state. - View Dependent Claims (14, 15, 16, 17)
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Specification