Control method for power transmitter, power transmitter and noncontact power transfer apparatus
AssigneeNingbo Weie Electronics Technology Ltd.
InventorsFeng YU, Weiyi FENG
Life of this patent
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Abstract
A control method for a power transmitter, a power transmitter and a noncontact power transfer apparatus are disclosed. An inverter in the power transmitter is controlled to be intermittently y input a voltage in the standby mode, and the input voltage of the inverter is controlled to show a gradually increasing or gradually decreasing trend when there is a voltage value input in the standby state. According to the control method for the power transmitter, the power transmitter and the noncontact power transfer apparatus of the present disclosure, it can achieve smooth transition from the standby state to the normal state, and the standby efficiency and the normal operation efficiency can both be improved.
Claims20
A control method for a power transmitter, comprising:
- inputting an input voltage with a predetermined value to an inverter in the power transmitter when a receiving load is detected;
- and
- intermittently y inputting a voltage to the inverter in each duty cycle when no receiving load is detected, and controlling the input voltage of the inverter to show a gradually increasing or gradually decreasing trend during the period when there is a voltage input to the inverter.
A power transmitter comprising:
- an inverter;
- and
- a control circuit for detecting a receiving load,
- wherein the control circuit controls to input an input voltage with a predetermined value to the inverter when a receiving load is detected;
- and
- the control circuit controls to intermittently y input a voltage to the inverter in each duty cycle when no receiving load is detected, and controls the input voltage of the inverter to show a gradually increasing or gradually decreasing trend during the period when there is a voltage input to the inverter.
A noncontact power transfer apparatus comprising:
- a power transmitter, comprising:
- an inverter;
- and
- a control circuit for detecting a receiving load, wherein the control circuit controls to input an input voltage with a predetermined value to the inverter when a receiving load is detected;
- and the control circuit controls to intermittently y input a voltage to the inverter in each duty cycle when no receiving load is detected, and controls the input voltage of the inverter to show a gradually increasing or gradually decreasing trend during the period when there is a voltage input to the inverter, and
- a power receiving terminal adapted to couple to the power transmitter as the receiving load.
Dependencies are inferred from the claim text.