POWER TRANSMISSION CONTROL DEVICE, POWER TRANSMITTING DEVICE, NON-CONTACT POWER TRANSMISSION SYSTEM, ELECTRONIC INSTRUMENT, AND POWER TRANSMISSION CONTROL METHOD
First Claim
1. A power transmission control device provided in a power transmitting device of a non-contact power transmission system, the non-contact power transmission system performing non-contact power transmission from the power transmitting device to a power receiving device via a primary coil and a secondary coil that are electromagnetically coupled, the power transmission control device comprising:
- a power-transmitting-side control circuit that controls power transmission to the power receiving device,the power-transmitting-side control circuit causing the power transmitting device to perform intermittent temporary power transmission, detecting a response from the power receiving device that has received the temporary power transmission to detect installation of a power-receiving-side instrument that includes the power receiving device in an area in which power transmitted via non-contact power transmission can be received, causing the power transmitting device to perform continuous normal power transmission to the power receiving device when the installation of the power-receiving-side instrument has been detected, and causing the power transmitting device to continuously perform the intermittent temporary power transmission when the installation of the power-receiving-side instrument has not been detected.
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Accused Products
Abstract
A power transmission control device provided in a power transmitting device of a non-contact power transmission system includes a power-transmitting-side control circuit that controls power transmission to a power receiving device, the power-transmitting-side control circuit causing the power transmitting device to perform intermittent temporary power transmission, detecting a response from the power receiving device that has received the power due to the temporary power transmission to automatically detect installation of a power-receiving-side instrument that includes the power receiving device in an area in which power transmitted via non-contact power transmission can be received, and causing the power transmitting device to perform continuous normal power transmission to the power receiving device when the installation of the power-receiving-side instrument has been detected. A foreign object detection process may also be performed in combination.
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Citations
21 Claims
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1. A power transmission control device provided in a power transmitting device of a non-contact power transmission system, the non-contact power transmission system performing non-contact power transmission from the power transmitting device to a power receiving device via a primary coil and a secondary coil that are electromagnetically coupled, the power transmission control device comprising:
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a power-transmitting-side control circuit that controls power transmission to the power receiving device, the power-transmitting-side control circuit causing the power transmitting device to perform intermittent temporary power transmission, detecting a response from the power receiving device that has received the temporary power transmission to detect installation of a power-receiving-side instrument that includes the power receiving device in an area in which power transmitted via non-contact power transmission can be received, causing the power transmitting device to perform continuous normal power transmission to the power receiving device when the installation of the power-receiving-side instrument has been detected, and causing the power transmitting device to continuously perform the intermittent temporary power transmission when the installation of the power-receiving-side instrument has not been detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 20)
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12. A power transmission control device provided in a power transmitting device that transmits power to a power receiving device, the power transmission control device comprising:
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a position detection section that detects a position of the power receiving device; and a power transmission control section that controls an operation of the power transmitting device, the power transmission control section causing the power transmitting device to perform intermittent power transmission, causing the power transmitting device to perform continuous power transmission when the position detection section has detected a response from the power receiving device that has received the intermittent the power transmission, and causing the power transmitting device to continuously perform the intermittent power transmission when the position detection section does not detect the response.
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14. A non-contact power transmission system comprising a power transmitting device and a power receiving device, the non-contact power transmission system performing non-contact power transmission from the power transmitting device to the power receiving device via a primary coil and a secondary coil that are electromagnetically coupled,
the power transmitting device including a power-transmitting-side control circuit that controls power transmission to the power receiving device based on an induced voltage in the primary coil; -
the power receiving device including a power supply control section that controls power supply to a load, and a power reception control device that includes a power-receiving-side control circuit that controls the power receiving device; and the power-transmitting-side control circuit of the power transmitting device causing the power transmitting device to perform intermittent temporary power transmission, detecting a response from the power receiving device that has received the power due to the temporary power transmission to detect installation of a power-receiving-side instrument that includes the power receiving device in an area in which power transmitted via non-contact power transmission can be received, causing the power transmitting device to perform continuous normal power transmission to the power receiving device when the installation of the power-receiving-side instrument has been detected, and causing the power transmitting device to continuously perform the intermittent temporary power transmission when the installation of the power-receiving-side instrument has not been detected. - View Dependent Claims (15, 16, 17, 18, 19)
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21. A power transmission control method that controls power transmission from a power transmitting device to a power receiving device, the method comprising:
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causing the power transmitting device to perform intermittent temporary power transmission; causing the power receiving device that has received the intermittent temporary power transmission to transmit a response to the power transmitting device; causing the power transmitting device to detect the response to detect installation of the power receiving device in an area in which power transmitted via non-contact power transmission can be received; causing the power transmitting device to perform continuous normal power transmission when the installation of the power receiving device has been detected; and causing the power transmitting device to perform intermittent power transmission when the installation of the power receiving device has not been detected.
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Specification