JP2010187495A - Noncontact power supply system, power supply apparatus, and power-receiving apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a noncontact power supply system that gives information on power of electricity to be supplied by a power supply apparatus to a power-receiving apparatus when the power supply apparatus starts noncontact power supply to the power-receiving apparatus using electromagnetic induction. <P>SOLUTION: The power supply apparatus gives predetermined information on the power supply apparatus in association with the pulse width, the number of pulses, etc., of the waveform of power to be supplied through a noncontact power-receiving means provided in a power receiving apparatus, from a noncontact power-supply means to the power-receiving apparatus. The power-receiving apparatus acquires the information from measurements of the pulse width, the number of pulses, etc., of the waveform of received power, and increases a load as a signal for notifying the power supply apparatus of acquisition of the information. The power supply apparatus detects a change in a current volume of output power that is generated as a result of a change in the load increased when the power-receiving apparatus acquires the information, and ends notification of the information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a non-contact power supply system capable of supplying electric power from a power supply device to a power reception device in a non-contact manner using electromagnetic induction. In particular, the power reception device can supply the power supply device at the start of power reception. The present invention relates to a technique for acquiring information related to the performance of a power supply apparatus including a large amount of power, or information related to functions provided in the power supply apparatus.

  Conventionally, non-contact power feeding using electromagnetic induction has been performed for power feeding to small electric devices such as an electric razor and an electric toothbrush. At that time, Patent Document 1 discloses an invention that reduces power consumption and heat generation by suppressing output power to a power receiving apparatus to a necessary minimum.

  FIG. 12 is a block diagram showing a configuration of a conventional non-contact power feeding device disclosed in Patent Document 1. In FIG.

  In FIG. 12, the non-contact power supply apparatus includes a power supply unit 1201, an inverter 1202, a power supply coil 1203, and a current limiting circuit 1204.

As a power feeding method, a direct current output from the power supply means 1201 is converted into an alternating current by the inverter 1202, and the alternating current converted by the inverter 1202 is received by electromagnetic induction via the power feeding coil 1203 (not shown). Power to At that time, the load on the power receiving apparatus side varies depending on the amount of power used by the power receiving apparatus, but the current value output from the power supply means 1201, that is, the voltage value also changes accordingly. The output voltage value of the power supply unit 1201 is monitored, and the current limiting circuit 1204 appropriately adjusts the output current value of the power supply unit 1201 in accordance with the variation in the monitored output voltage value, thereby The power suitable for the load can be supplied.
JP 2000-217277 A

  However, in the conventional method disclosed in Patent Document 1, the following new problem occurs. In other words, in recent years, with the increase in the amount of power supplied by non-contact power feeding, various usage forms in which power receiving devices are mounted and used in various devices are being expected for power feeding devices. The power required by the device varies greatly depending on the power receiving device. In some cases, the power feeding device may not be able to supply the power required by the power receiving device to the power receiving device. When such a situation occurs, the power receiving apparatus cannot perform a satisfactory operation due to power shortage, resulting in unstable operation. In such a case, the power receiving apparatus can be considered a corresponding solution by suppressing the power consumption by reducing the function and performance in accordance with the power supply capability of the power supply apparatus. In the conventional method in which the power supply device optimizes the supply power according to the load of the power receiving device, the power receiving device cannot grasp the amount of power that can be supplied by the power supply device, There was a problem that it was not possible to judge whether it was possible to drop it.

  The present invention has been made in view of such problems, and has a function of notifying the power receiving device of information regarding the amount of power that can be supplied when the power feeding device starts power feeding. Even if the power supply device cannot supply the required power, the power reception device grasps the amount of power that can be supplied by the power supply device, and the power reception device so that the power consumption corresponds to the amount of power that can be supplied. It is an object of the present invention to provide a non-contact power feeding system, a power feeding device, and a power receiving device capable of determining functions and performance to be suppressed in order to reduce power consumption.

  In order to achieve the above object, a contactless power feeding system according to a first aspect of the present invention is a contactless power feeding system capable of contactless power feeding by utilizing electromagnetic induction from a power feeding device to a power receiving device. The apparatus excites a power supply unit that outputs power to be supplied to the power reception device, and a non-contact power reception unit included in the power reception device by the power output from the power supply unit. Contactless power supply means for supplying power by contact and power having a plurality of power waveforms including power having a first power waveform including predetermined information about the power supply device can be supplied to the power receiving device. In addition, when controlling the power supplied from the non-contact power feeding means and confirming that the power receiving apparatus has acquired the predetermined information, a second power waveform is applied to the power receiving apparatus. Power supply control means for supplying electric power to be performed, and predetermined information acquisition confirmation means for confirming whether or not the power receiving apparatus has acquired the predetermined information, wherein the power receiving apparatus is excited by the non-contact power feeding means. And detecting the power having the first power waveform from the power received by the contactless power receiving means, the power received by the contactless power receiving means, and acquiring the predetermined information, When the information is acquired, the power supply device is notified that the predetermined information has been acquired, and predetermined information acquisition / power control means for controlling power supply to the power receiving device; Device control means for controlling performance and / or function of the power receiving device according to the predetermined information acquired by the predetermined information acquisition / power control means at the time of power reception of power having a power waveform; It is characterized in further comprising a.

  Further, the non-contact power feeding system of the second invention of the present application is the non-contact power feeding system of the first invention of the present application, wherein the predetermined information includes the power amount that can be supplied by the power feeding device. It is the information regarding performance, the information regarding the function with which the said electric power feeder is provided, or the information regarding apparatus ID (IDentification) of the said electric power feeder.

  The contactless power supply system of the third invention of the present application is the contactless power supply system of the first invention or the second invention of the present application, in which the pulsed power that generates the first power waveform at a predetermined cycle is provided. The waveform is notified and the predetermined information is notified to the power receiving apparatus in association with the pulse width of the pulse-shaped power waveform, or the predetermined information is associated with the number of pulses of the pulse-shaped power waveform. Notification.

  The contactless power supply system according to a fourth aspect of the present invention is the contactless power supply system according to the third aspect of the present invention, wherein the predetermined information acquisition / power control means generates a pulsed power waveform generated at a predetermined cycle. The predetermined information is obtained by detecting power having the first power waveform and measuring the pulse width or the number of pulses of the pulsed power waveform.

  The contactless power feeding system according to a fifth aspect of the present invention is the contactless power feeding system according to any one of the first to fourth aspects of the present invention, wherein the predetermined information acquisition / power control means is the predetermined information. The power supply device is notified by changing the load of the power receiving device.

  The contactless power supply system according to a sixth aspect of the present invention is the contactless power supply system according to any one of the first to fifth aspects of the present invention, wherein the predetermined information acquisition / power control means is supplied from the power supply apparatus. In the case where power other than the power having the second power waveform is received, the power supply range to the power receiving device is limited to a predetermined range.

  The contactless power feeding system according to a seventh aspect of the present invention is the contactless power feeding system according to any one of the first to fifth aspects of the present invention, wherein the predetermined information acquisition confirming means is connected to the power receiving device. It is characterized in that whether or not the power receiving apparatus has acquired the predetermined information is detected by detecting a change in the first power waveform to be supplied.

  According to an eighth aspect of the present invention, there is provided a non-contact power feeding system according to any one of the first to seventh aspects of the present invention, wherein the power feeding device receives power for detecting the power receiving device. In addition to device detection means, the power supply control means supplies power having a third power waveform in addition to power having the first power waveform and power having the second power waveform to the power receiving device. A function of controlling power supplied from the non-contact power feeding means to the power receiving device, wherein the power supply control means controls the power receiving device with respect to the first power supply. Prior to supplying power having a power waveform, control is performed so as to supply power having the third power waveform, and the power receiving device detection means detects a change in the third power waveform, It is characterized in that to detect that the serial power receiving apparatus is installed in the power receiving enabling state.

  The contactless power feeding system of the ninth invention of the present application is the contactless power feeding system of the eighth invention of the present application, wherein the power receiving device detecting means detects that the power receiving device is installed in a power receivable state. The power supply control means supplies the power having the first power waveform in place of the power having the third power waveform instead of the power supplied from the contactless power feeding means to the power receiving device. It is characterized by controlling as follows.

  The contactless power feeding system of the tenth invention of the present application uses the power having the first waveform as the power having the third waveform in the contactless power feeding system of the first or fifth invention of the present application. It is characterized by this.

  According to an eleventh aspect of the present invention, there is provided a power feeding device capable of performing non-contact power feeding by utilizing electromagnetic induction to a power receiving device provided with a non-contact power receiving means, which supplies the power receiving device. Power supply means for outputting electric power, and non-contact power supply means for exciting the non-contact power receiving means included in the power receiving device with the power output from the power supply means, and supplying power to the power receiving device in a contactless manner And the power receiving device is supplied from the non-contact power feeding means so that power having a plurality of power waveforms including a power having a first power waveform including predetermined information about the power feeding device can be supplied. Power supply control means for supplying power having a second power waveform to the power receiving device when confirming that the power receiving device has acquired the predetermined information. Is characterized in that the power receiving device is provided with a predetermined information acquisition confirmation means for confirming whether or not acquired the predetermined information.

  Further, the power supply device of the twelfth invention of the present application is the power supply device of the eleventh invention of the present application, wherein the predetermined information includes information on the performance of the power supply device including the amount of power that can be supplied by the power supply device, Or it is the information regarding the function with which the said electric power feeder is provided, or the information regarding apparatus ID (IDentification) of the said electric power feeder.

  A power supply device according to a thirteenth aspect of the present invention is the power supply device according to the eleventh or twelfth aspect of the present invention, wherein the first power waveform is a pulsed power waveform generated at a predetermined cycle, and the power receiving device The predetermined information is notified in association with the pulse width of the pulse-shaped power waveform, or the predetermined information is notified in association with the number of pulses of the pulse-shaped power waveform. It is what.

  According to a fourteenth aspect of the present invention, there is provided the power feeding device according to any one of the eleventh to thirteenth aspects of the present invention, wherein the predetermined information acquisition confirmation means supplies the first power supplied to the power receiving device. By detecting a change in the power waveform, it is confirmed whether or not the power receiving apparatus has acquired the predetermined information.

  According to a fifteenth aspect of the present invention, in the power feeding device according to any one of the eleventh to fourteenth aspects of the present invention, the power feeding device further includes a power receiving device detecting means for detecting the power receiving device. The non-contact so that the control means can supply the power having the third power waveform to the power receiving apparatus in addition to the power having the first power waveform and the power having the second power waveform. The power supply unit further includes a function of controlling power supplied from the power supply unit to the power receiving device, and the power supply control unit is configured to supply the power having the first power waveform to the power receiving device prior to the power supply. Control is performed to supply power having a third power waveform, and the power receiving device detecting means detects a change in the third power waveform, whereby the power receiving device is installed in a power receivable state. It is characterized in that detecting and.

  According to a sixteenth aspect of the present invention, in the power feeding apparatus according to the fifteenth aspect of the present invention, when the power receiving device detecting means detects that the power receiving device is installed in a power receivable state, the power supply device The control means controls the power supplied from the non-contact power supply means to the power receiving device so as to supply the power having the first power waveform instead of the power having the third power waveform. It is characterized by this.

  According to a seventeenth invention of the present application, in the power feeding device of the fifteenth or sixteenth invention of the present application, the power having the first waveform is used as the power having the third waveform. To do.

  The power receiving device according to the eighteenth aspect of the present invention is a power receiving device capable of non-contact power reception by utilizing electromagnetic induction from a power supply device including a non-contact power supply means, and is excited by the non-contact power supply means. Non-contact power receiving means for receiving power by contact, and the power feeding included in the power having the first power waveform by detecting power having a first power waveform from the power received by the non-contact power receiving means When the predetermined information about the device is acquired and the predetermined information is acquired, the power receiving device is notified of the acquisition of the predetermined information via the non-contact power receiving means, and the power receiving device Predetermined information acquisition / power control means for controlling power supply to the power supply, and after the predetermined information acquisition / notification means notifies the power supply apparatus that the predetermined information has been acquired, Performance of the power receiving device according to the predetermined information acquired by the predetermined information acquisition / power control means when receiving the power having the second power waveform supplied instead of the power having the first power waveform, and And / or device control means for controlling the function.

  Further, the power receiving device of the nineteenth invention of the present application is the power receiving device of the eighteenth invention of the present application, wherein the predetermined information includes information on the performance of the power feeding device including the amount of power that can be supplied by the power feeding device, Or it is the information regarding the function with which the said electric power feeder is provided, or the information regarding apparatus ID (IDentification) of the said electric power feeder.

  The power receiving device of the twentieth invention of the present application is the power receiving device of the eighteenth or nineteenth invention of the present application, wherein the predetermined information acquisition / power control means forms a pulsed power waveform generated at a predetermined cycle. The power having the first power waveform is detected, and the predetermined information is obtained by measuring the pulse width or the number of pulses of the first power waveform.

  The power receiving device of the twenty-first invention of the present application is the power receiving device of any of the eighteenth to twentieth inventions of the present application, wherein the predetermined information acquisition / power control means acquires the predetermined information. The power feeding device is notified by changing the load of the power receiving device.

  The power receiving device according to a twenty-second aspect of the present invention is the power receiving device according to any one of the eighteenth to twenty-first aspects of the present invention, wherein the predetermined information acquisition / power control means receives the second power waveform from the power feeding device. When power other than the power having power is received, the power supply range for the power receiving apparatus is limited to a predetermined range.

  According to the non-contact power feeding system of the present invention, the power receiving device starts power feeding after confirming that the power receiving device has acquired information on the amount of power that can be fed by the power feeding device. It is possible to grasp information such as the amount of power that can be received from the power supply device at the time of powering, and to reduce the power and performance by suppressing the performance and functions of the power receiving device according to the information such as the amount of power that can be received It is possible to avoid the cause of unstable operation due to the above.

  Furthermore, as a method of notifying information such as the amount of power that can be supplied from the power feeding device to the power receiving device, the pulse width of the power pulse that is intermittently transmitted at a predetermined cycle is used, and the power receiving device sends the information to the power feeding device. As a method for notifying that the acquisition of information such as the amount of power that can be received is completed, a method for detecting fluctuations in the amount of power supplied by the power supply device due to an increase in the load of the power reception device is used. It is possible to transmit and confirm information such as the amount of power that can be supplied from the power supply apparatus to the power reception apparatus without having any special communication means other than the contactless power reception means included in the power supply means and the power reception apparatus.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a schematic diagram showing an example of the configuration of the non-contact power feeding system according to Embodiment 1 of the present invention.

  In FIG. 1, the non-contact power feeding system includes a power receiving device 101 and a power feeding device 103. The power receiving apparatus 101 includes a power receiving coil 102 for realizing non-contact power reception by electromagnetic induction, and the power feeding apparatus 103 includes a power feeding coil 104 for realizing non-contact power feeding by electromagnetic induction. As a usage mode, when the user installs the power receiving apparatus 101 on the power feeding apparatus 103, the power feeding apparatus 103 detects that the power receiving apparatus 101 is installed in a power receivable state, and Power supply starts automatically.

  Next, the configuration of power feeding apparatus 103 according to Embodiment 1 of the present invention will be described with reference to FIG. FIG. 2 is a block diagram showing a configuration of the power feeding apparatus according to Embodiment 1 of the present invention.

  In FIG. 2, the power supply apparatus 103 includes a power supply unit 201, a current measurement unit 202, a non-contact power supply unit 203, a power supply control unit 204, and a power supply coil 104. Note that the non-contact power feeding unit described in the claims may include the non-contact power feeding unit 203 and the power feeding coil 104. Further, the predetermined information acquisition confirmation means described in the claims includes a power supply means 201, a current measurement means 202, and a power supply control means 204.

  The power supplied (output) from the power supply unit 201 is controlled by the power supply control unit 204 and output to the non-contact power supply unit 203. The non-contact power supply unit 203 uses the power input from the power supply control unit 204. Then, contactless power feeding is performed to the power receiving apparatus 101 via the power feeding coil 104. At that time, the current measuring unit 202 measures the current value output from the power supply unit 201 to the power supply control unit 204 to detect a load change, and notifies the power supply control unit 204 that the load change has been detected. Notice.

  In the first embodiment of the present invention, one of the purposes for the current measuring unit 202 to detect a change in load is detection of the power receiving apparatus 101, and the other is from the power receiving apparatus 101 to the power feeding apparatus 103. This is detection of an information acquisition completion notification that is transmitted and notifies that information relating to the amount of power that can be supplied transmitted from the power supply apparatus 103 has been acquired. This will be described in detail later.

  Next, a procedure from when the power supply apparatus 103 according to Embodiment 1 of the present invention detects the power reception apparatus 101 to when the power supply is actually started will be described with reference to FIG. FIG. 3 is a diagram illustrating a procedure from when the power supply apparatus according to Embodiment 1 of the present invention detects a power reception apparatus to when power supply is actually started.

  In FIG. 3, first, the power supply apparatus 103 enters a power reception apparatus detection mode (S301) for determining whether or not the power reception apparatus 101 is installed on the power supply apparatus 103. In non-contact power feeding using electromagnetic induction, the power receiving apparatus 101 is installed on the power feeding apparatus 103 in a power receivable state, so that electromagnetic induction works and the load increases. When the load increases, the amount of current output from the power supply unit 201 shown in FIG. 2 increases. Therefore, by detecting the increase in the amount of current, the power receiving device 101 is installed on the power supply device 103. That is, it is determined that the power receiving apparatus 101 is installed in a power receivable state.

  Specifically, the power supply control unit 204 periodically outputs pulsed power (power pulse) to the power supply coil 104 via the non-contact power supply unit 203 at a predetermined cycle, and the current measurement unit 202 By detecting the load fluctuation that occurs when the power receiving apparatus 101 is installed on the power supply apparatus 103 and notifying the power supply control means 204, the power supply control means 204 installs the power receiving apparatus 101 in a power-receivable state. It recognizes that and shifts to the power authentication mode (S302) which is the next step.

  In the power authentication mode in step S302, the power supply control unit 204 periodically outputs power pulses different from those in the power receiving device detection mode in step S301 at predetermined intervals (here, output 10 times). To do). At that time, the power supply control unit 204 converts the information on the amount of power that can be supplied by the power supply apparatus 103 into the output time of the power pulse, that is, the pulse width of the power pulse, and the power supply coil 104 via the non-contact power supply unit 203. Output to. Hereinafter, the power pulse for notifying information on the amount of power that can be supplied will be referred to as a power authentication pulse.

  The power receiving apparatus 101 receives the power authentication pulse from the power supply apparatus 103, and increases the load on the power supply apparatus 103 at the stage of acquiring information regarding the amount of power that can be supplied from the pulse width of the power authentication pulse. The current measuring unit 202 of the power supply apparatus 103 detects the increase in the load of the power receiving apparatus 101 based on the increase in the amount of current output from the power supply unit 201 and completes information acquisition regarding the amount of power that can be supplied by the power receiving apparatus 101 The power supply control means 204 is determined to determine that it has been performed, and the process proceeds to the next step, the power supply mode (S303). When shifting to the power supply mode in step S <b> 303, the power supply control unit 204 of the power supply apparatus 103 starts supplying power to the power reception apparatus 101.

  On the other hand, if the current measuring unit 202 cannot detect an increase in the load even though the power supply apparatus 103 has output the power authentication pulse 10 times to the power receiving apparatus 101, it is determined that the power authentication has failed and the step The process proceeds to the power receiving device detection mode in S301, and the steps from Step S301 to Step S302 are repeated until the current measurement unit 202 detects an increase in load in the power authentication mode in Step S302.

  Next, with reference to FIG. 4 and FIG. 5, the temporal change of the power pattern output from the power feeding apparatus 103 to the power receiving apparatus 101 in the above steps S301 to S303 will be described. FIG. 4 is a diagram showing a change with time of a power pattern output from the power feeding apparatus to the power receiving apparatus in the power receiving apparatus detection mode of the power feeding apparatus according to Embodiment 1 of the present invention. FIG. It is a figure which shows a time-dependent change of the electric power pattern which a power supply apparatus outputs with respect to a power receiving apparatus until it transfers to the power supply mode from the power authentication mode of the power supply apparatus which concerns on this Embodiment 1. FIG.

  In FIG. 4, the vertical axis represents current when the power supply apparatus 103 outputs a power pulse, and the horizontal axis represents elapsed time. In the power receiving device detection mode in step S301, the power feeding device 103 periodically has a power pulse a of the output current i1 for detecting the power receiving device (a third power waveform described in the claims) at a predetermined cycle. Power). When the power receiving apparatus 101 is installed on the power feeding apparatus 103, the load of the power pulse increases due to the electromagnetic induction, and the current of the power pulse increases. As shown in FIG. 4, the power pulse is changed from the power pulse a to the power pulse. It changes to b (output current i2). The current measuring unit 202 detects this change and notifies the power supply control unit 204 so that the power supply control unit 204 determines that the power receiving apparatus 101 is installed on the power supply unit 103 in a power receivable state. The process proceeds to the power authentication mode in step S302.

  In FIG. 5, the vertical axis represents current when the power supply apparatus 103 outputs a power pulse, and the horizontal axis represents elapsed time. In the power authentication mode of step S302, the power supply apparatus 103 periodically outputs a power authentication pulse c of the output current i3 (power having the first power waveform described in the claims) at a predetermined cycle. . The power supply apparatus 103 notifies information related to the amount of power that can be supplied by the power supply unit 201 using the output time t of the power authentication pulse c output from the power supply apparatus 103, that is, the pulse width of the power authentication pulse c. In the first embodiment of the present invention, the output time t of the power authentication pulse c corresponding to 1 W (Watt) is defined as 10 milliseconds. For example, if the power supply apparatus 103 can supply power of 4.1 W to the power reception apparatus 101, the output time t of the power authentication pulse c is 41 milliseconds.

  The power supply apparatus 103 periodically outputs the power authentication pulse c 10 times to the power receiving apparatus 101 at a predetermined cycle. The power receiving apparatus 101 can supply the power authentication apparatus 101 while receiving the 10 power authentication pulses c. The load is increased at the stage when information on the amount of power is acquired. When the load of the power receiving apparatus 101 increases, the current amount of the power authentication pulse c (output current i3) increases and changes to the power authentication pulse d (output current i4). The current measuring unit 202 detects this change. As a result, the power receiving apparatus 101 determines that it has acquired information about the amount of power that can be supplied from the power supply apparatus 103, and notifies the power supply control means 204 accordingly.

  When the power supply control unit 204 receives a notification from the current measurement unit 202 that the power receiving apparatus 101 has completed the acquisition of information regarding the amount of power that can be supplied by the power supply apparatus 103, the power supply control unit 204 shifts to the power supply mode (S303) and outputs the output current. i5 continuous power (power having the second power waveform recited in claims) is supplied. On the other hand, even if the power supply apparatus 103 outputs the power authentication pulse c 10 times to the power receiving apparatus 101, if the load on the power receiving apparatus 101 does not increase, it is determined that the power authentication has failed, and the power receiving in step S301 is performed. The process shifts to the device detection mode and starts again from detecting the power receiving device 101.

  Although the power receiving apparatus 101 increases the load at the stage of acquiring information about the amount of power that can be supplied, the power receiving apparatus 101 may reduce the load at the stage of acquiring information about the amount of power that can be supplied. In this case, the output current i4 of the power authentication pulse d shown in FIG. 5 is smaller than the output current i3 of the power authentication pulse c.

  The power pulse a used in the power receiving device detection mode in step S301 is a power pulse different from the power authentication pulse c used in the power authentication mode in step S302. However, in the power receiving device detection mode in step S301, the power in step S302 is used. As in the authentication mode, the power authentication pulse c may be used.

  Next, the operation in the power authentication mode S302 of the power supply control unit 204 according to Embodiment 1 of the present invention will be described using FIG. FIG. 6 is a diagram showing a processing flow in the power authentication mode of the power supply control means according to Embodiment 1 of the present invention.

  In FIG. 6, the power supply control unit 204 outputs a power authentication pulse c together with the start of power authentication (S601) (S602), and determines whether the load on the power receiving apparatus 101 has increased (S603).

  If it is determined in step S603 that the load has increased (YES in step S603), the power receiving apparatus 101 recognizes that it has acquired information about the amount of power that can be supplied by the power supply apparatus 103, and the power supply mode (S303). ) To end the power authentication process (S605).

  On the other hand, if it is determined in step S603 that the load has not increased (NO in step S603), it is determined whether the power authentication pulse has been output 10 times to the power receiving apparatus 101. If it is determined in step S606 that it has not been output ten times (NO in step S606), the process proceeds to step S602, and the power authentication pulse c is continuously output to repeat the process. If it is determined in step S606 that the output has been made 10 times (YES in step S606), it is determined that the power authentication has failed, the power receiving apparatus detection mode (S301) is entered, and the power authentication process is terminated ( S605).

  Next, the configuration of power receiving apparatus 101 according to Embodiment 1 of the present invention will be described using FIG. FIG. 7 is a block diagram showing a configuration of the power receiving device according to Embodiment 1 of the present invention.

  In FIG. 7, the power receiving apparatus 101 includes a power receiving coil 102, non-contact power receiving means 710, predetermined information acquisition / power control means 720, apparatus control means 730, and display means 740. The predetermined information acquisition / power control unit 720 includes a power measurement unit 721, a power source control unit 722, a power value storage unit 723, and a load control unit 724. Note that the non-contact power receiving means described in the claims is a means constituted by the power receiving coil 102 and the non-contact power receiving means 710.

  The power receiving coil 102 receives the electromagnetic wave input from the power supply apparatus 103 and outputs it to the non-contact power receiving unit 710. The non-contact power receiving unit 710 converts the input electromagnetic wave into electric power to obtain predetermined information and power. The control unit 720 obtains predetermined information such as information related to the amount of power that can be supplied, which is transmitted from the power supply apparatus 103 on the power authentication pulse c, and indicates that the predetermined information is acquired from the power supply apparatus 103. The control unit 730 controls the supply range when the power supplied from the power supply apparatus 103 is supplied into the power receiving apparatus 101 according to the difference in the supplied power pattern, that is, the power supply range. The function and performance of the entire power receiving apparatus 101 are controlled, and the display unit 740 performs display processing in the power receiving apparatus 101.

  Further, the load control unit 724 constituting the predetermined information acquisition / power control unit 720 performs load control in the power receiving apparatus 101 by varying power consumption, and the power measurement unit 721 supplies the power authentication pulse c from the power supply apparatus 103. When this is done, the output time t of the power authentication pulse c is measured, and the measured value is output to the power value storage means 723 as information relating to the amount of power that can be supplied by the power supply apparatus 103.

  The power value storage unit 723 stores the measurement value of the output time t of the power authentication pulse c received from the power measurement unit 721 and converts the measurement value into a power value based on a predetermined rule. In the first embodiment of the present invention, as described above, since the predetermined agreement that the output time t of the power authentication pulse c corresponding to 1 W (watt) is 10 milliseconds is shown, the power receiving apparatus 101 For example, when the output time t of the power authentication pulse c is 41 milliseconds, the power value storage means 723 converts the measured value of the output time t to 41 millisecond based on the predetermined rule. Then, it is recognized that the amount of power (power value) that can be supplied by the power supply apparatus 103 is 4.1 W.

  Here, the power value storage unit 723 converts the measured value of the output time t into the power value. However, the present invention is not limited to this. For example, the power control unit 722 or the device control unit 730 converts the measured value. It doesn't matter.

  The power value storage unit 723 holds the measurement value input from the power measurement unit 721, performs power authentication based on a predetermined condition described later, and after completing the power authentication, the load control unit 724 A power authentication completion notification is output, information related to the amount of power that can be supplied by the power supply apparatus 103 is notified to the device control unit 730, and a power supply start instruction that instructs power supply start is output to the power supply control unit 722. To do. The power supply control unit 722 controls the power supply range into the power receiving apparatus 101 based on the presence or absence of a power supply start instruction from the power value storage unit 723. That is, the power control unit 722 supplies power only to the non-contact power receiving unit 710 and the predetermined information acquisition / power control unit 720 until receiving a power supply start instruction from the power value storage unit 723, and the power value storage unit 723. When the power supply start instruction is received, the power supply range is controlled so that power is supplied to the entire power receiving apparatus including the predetermined information acquisition / notification unit 720.

  By controlling the power supply range in this way, when the power supplied from the power supply apparatus 103 is an intermittent power pulse in the power receiving apparatus detection mode (S301) or the power authentication mode (S302) shown in FIG. Since the power supply can be limited to the minimum necessary range, it is possible to improve the reliability of the operation of obtaining the predetermined information and notifying completion of the predetermined information acquisition.

  Next, the operation of the power receiving apparatus 101 configured as described above will be described with reference to FIG.

  First, when the power receiving apparatus 101 is installed on the power supply apparatus 103 in a power receivable state, the power supply apparatus 103 shifts to the power authentication mode in step S302 illustrated in FIG. 3 and outputs a power authentication pulse c. In the power receiving device 101, the power authentication pulse c output from the power feeding device 103 is received by the non-contact power receiving means 710 via the power receiving coil 102 and converted into power, and the power generated in the non-contact power receiving means 710 is generated. Is supplied to the power supply control means 722, and the power supply control means 722 supplies the power supplied from the non-contact power receiving means 710 to the entire predetermined information acquisition / power control means 720.

  In the predetermined information acquisition / power control means 720, the power measurement means 721 supplied with power measures the output time t of the power authentication pulse and outputs the measured value to the power value storage means 723. The power value storage means 723 has a storage device that holds measurement values for three times, and among the measurement values corresponding to the power authentication pulse c inputted ten times, the same measurement value is given three times in succession. At a certain stage, it is determined that the continuous measurement value is information related to the amount of power that can be supplied by the power supply apparatus 103, and a power authentication completion notification is sent to the load control unit 724 to notify the completion of power authentication. After outputting, a power supply start instruction for instructing the power supply control means 722 to start power supply is output.

  When receiving the power authentication completion notification from the power value storage unit 723, the load control unit 724 increases the load, that is, increases the power consumption, and the power receiving apparatus 101 in the power authentication pulse c that is next input from the power supply apparatus 103. By increasing the current consumed by the power supply device 103, the power supply apparatus 103 is notified that the power authentication has been completed. When receiving a power supply start instruction from the power value storage unit 723, the power supply control unit 722 supplies power to the entire power receiving apparatus 101 including the predetermined information acquisition / power control unit 720, the apparatus control unit 730, and the display unit 740.

  Upon receiving the power authentication completion notification from the power receiving apparatus 101, the power feeding apparatus 103 shifts to the power feeding mode in step S303 shown in FIG. 3, and is continuous instead of pulsed as shown in “power feeding mode” in FIG. Supply of electric power (electric power having the second electric power waveform described in claims) is started. The power supplied from the power supply apparatus 103 is supplied to the entire power reception apparatus 101 via the power supply control unit 722. The supplied device control unit 730 acquires information on the amount of power that can be supplied by the power supply device 103 from the power value storage unit 723 at the time of power generation, and uses the power consumption of the power receiving device 101 based on the acquired information on the amount of power. The function and performance of the power receiving apparatus 101 are limited so that the power does not exceed the amount of power that can be supplied by the power supplying apparatus 103. For example, the display unit 740 performs control such as suppressing the luminance of light emitted from the display unit 740 and reducing the operating frequency of the device control unit 730 to a low frequency.

  Here, a problem that occurs in the operation of the power receiving apparatus 101 in a period other than the output time t of the power authentication pulse c in the power authentication in step S302 illustrated in FIG. 3 and a solution to the problem will be described.

  In the power authentication mode of step S302, the power supply from the power supply apparatus 103 to the power receiving apparatus 101 is interrupted at the timing when the output of the power authentication pulse c (output time t) ends. Since the circuit is not provided, there arises a problem that a value (measurement value) obtained by measuring the output time t of the power authentication pulse c cannot be held.

  The configuration of the power value storage means 723 for solving the above problem will be described with reference to FIG. FIG. 8 is a block diagram showing the configuration of the power value storage means in Embodiment 1 of the present invention.

  In FIG. 8, the power value storage unit 723 includes a memory control unit 801, a non-volatile memory unit 802, a non-volatile memory unit 803, and a non-volatile memory unit 804.

  The memory control unit 801 writes the measured value of the output time t of the power authentication pulse c input from the power measurement unit 721 to the nonvolatile memory unit 802 to the nonvolatile memory unit 804, and the write control from the device control unit 730. Based on the instruction, control such as read control when reading the measured value of the output time t of the power authentication pulse c stored in the nonvolatile memory means 802 and output control for controlling the output to the device control means 730 is executed. In addition, a power authentication completion notification is output to the load control means 724 when the power authentication is completed.

The nonvolatile memory unit 802 to the nonvolatile memory unit 804 record and output the measured value of the output time t of the power authentication pulse c input from the memory control unit 801 based on the control of the memory control unit 801, and the power supply is interrupted. The recorded measurement value is retained even if
Here, the memory area of the non-volatile memory means 802 to the non-volatile memory means 804 will be described with reference to FIG. FIG. 9 is a diagram showing a memory area of the nonvolatile memory means in the first embodiment of the present invention.

  In FIG. 9, each of the memory areas of the non-volatile memory means 802 to the non-volatile memory means 804 is divided into an area A (A) and an area B (B). Is recorded, and a measurement value of the output time t of the power authentication pulse c is recorded in the region B (b).

  Next, the operation of the power value storage unit 723 configured as described above will be described with reference to FIGS. 8 and 9.

  When the power authentication pulse c is first input from the power measurement unit 721, the memory control unit 801 refers to the memory area A (A) of the nonvolatile memory unit 802 and confirms that no measurement value is recorded. In the above, the measured value of the output time t of the power authentication pulse c is recorded in the memory area B (b), and a recording flag indicating that the measured value is recorded in the area B (b) is recorded in the area B (b). Record.

  Next, when the power authentication pulse pulse c is inputted, since the recording flag of the nonvolatile memory means 802 is set, the memory control means 801 is the same as that recorded in the nonvolatile memory means 802. The measurement value of the output time t of the second power authentication pulse c is recorded in the memory area 803 (b), and a recording flag indicating that the measurement value is recorded in the area B (b) is recorded in the nonvolatile memory means 803. Record in area A (A).

  Similarly, when the third measurement value is recorded in the nonvolatile memory means 804 and the three measurement values recorded in the nonvolatile memory means 802 to 804 are the same value, the memory control means 801 Recognizing that the measured value is information related to the amount of power that can be supplied by the power supply apparatus 103, the power control completion notification is output to the load control unit 724 and the power supply start instruction is output to the power supply control unit 722. .

  The power supply apparatus 103 detects that the power receiving apparatus 101 has completed power authentication from the increase (change) in the load of the power receiving apparatus 101 that is increased by the load control means 724 that has received the power authentication completion notification from the memory control means 801. The power supply control means 722 that starts power supply and receives a power supply start instruction from the memory control means 801 supplies power to the entire power receiving apparatus 101, whereby the apparatus control means 730 generates electricity, and the device control means 730 receives the memory. When a read request is input to the control unit 801, the memory control unit 801 sends the measurement value recorded in the nonvolatile memory unit 802 (information on the amount of power that can be supplied by the power supply apparatus 103) to the apparatus control unit 730. Output.

  By configuring as described above, the input of the power authentication pulse c is performed by measuring the output time t of the power authentication pulse c and recording it in the nonvolatile memory means during the period when the power authentication pulse c is input. Even when the power supply is interrupted after the completion, the measured value of the output time t of the measured power authentication pulse c can be held.

  Next, a procedure from when the power receiving apparatus 101 detects the power authentication pulse c output from the power supply apparatus 103 to when starting power reception will be described with reference to FIG. FIG. 10 is a diagram illustrating a procedure from when the power receiving device according to Embodiment 1 of the present invention detects a power authentication pulse output from the power feeding device to when power reception is started.

  In FIG. 10, first, the power receiving apparatus 101 is in the power receiving detection mode (S1001), and when installed on the power feeding apparatus 103, the power receiving apparatus 103 detects that the power receiving apparatus 103 is in a power receiving enabled state. The process proceeds to (S1002).

  In the power authentication mode of step S1002, every time the power authentication pulse c is input from the power supply apparatus 103, the output time t of the power authentication pulse c is measured as a counter value, and the measured value is held in the power value storage unit 723. . When the same measurement value is input / held three times in succession in the power value storage unit 723, the power receiving apparatus 101 determines that the measured value is information regarding the power value that can be supplied by the power supply apparatus 103, and the power receiving apparatus 101. Increase the load. The power supply apparatus 103 detects an increase in the load of the power receiving apparatus 101, thereby determining that the power receiving apparatus 101 has completed power authentication, and starts power supply. The power receiving apparatus 101 shifts to a power reception mode (S1003) and performs power supply. Power reception from the device 103 is started.

  Next, the flow of processing in the power authentication mode (S1002) of the power receiving apparatus 101 according to Embodiment 1 of the present invention will be described using FIG. FIG. 11 is a diagram showing a processing flow in the power authentication mode of the power receiving apparatus according to Embodiment 1 of the present invention.

  In FIG. 11, when the power authentication pulse c is input from the power supply apparatus 103 and the power authentication is started (S1101), the output time t of the power authentication pulse c is measured and the measured value is held (S1102) three times. It is determined whether or not measurement is performed, that is, whether or not three measurement values are held (S1103). If it is determined in step S1103 that the number of measurements is less than 3 (NO in step S1103), the process returns to step S1102 and continues to measure the output time t of the power authentication pulse c and hold the measured value. The measurement is repeated until the number of measurements reaches three, and if it is determined that the number of measurements has reached three (YES in step S1103), it is determined whether or not the three measured values are the same value ( S1104).

  If it is determined in step S1104 that the three measurement values are the same (in the case of YES in step S1104), the measurement value is authenticated as information relating to the power value that can be supplied by the power supply apparatus 103, and In order to notify the power supply apparatus 103 of the completion of power authentication, a power authentication completion notification is output to the load control means 724 to change (increase) the load of the power receiving apparatus 101 (S1105), and the power authentication process ends ( S1106).

  On the other hand, if it is determined in step S1104 that the three measured values are not the same value (NO in step S1104), it is determined that the power authentication has failed, and the retained three measured values are discarded. That is, the memory initialization of the three nonvolatile memory units 802 to 804 is performed (S1107), the process returns to step S1102, and the processes of steps S1102 to S1104 are repeatedly executed until YES is determined in step S1104.

  With the configuration described above, the power supply apparatus 103 starts power supply after confirming that the power reception apparatus 101 has acquired information on the amount of power that can be supplied by the power supply apparatus 103. The amount of power that can be received from the power supply apparatus 103 can be grasped at the time of starting the power supply, and the function and performance of the power receiving apparatus 101 are suppressed according to the grasped amount of power that can be received. It becomes possible to avoid the cause of stability.

  Further, as a method of notifying the amount of power that can be supplied from the power supply apparatus 103 to the power reception apparatus 101, the power from the power reception apparatus 101 to the power supply apparatus 103 is utilized by utilizing the pulse width of the power pulse that is intermittently transmitted at a predetermined period. As a notification method of authentication completion, a special communication unit other than the non-contact power supply unit 203 and the non-contact power reception unit 710 is used by detecting a change in the amount of power supplied by the power supply device 103 due to an increase in the load of the power reception device 101. Without being included, it is possible to transmit and confirm information about the amount of power that can be supplied from the power supply apparatus 103 to the power reception apparatus 101, that is, to perform power authentication.

  In the first embodiment of the present invention, as a method for notifying the power supply device 103 of information related to the amount of power that can be supplied to the power receiving device 101, the output time t of the power authentication pulse output intermittently by the power supply device 103, That is, the pulse width of the power authentication pulse is used, but the present invention is not limited to this. For example, the number of power authentication pulses output intermittently by the power supply apparatus 103 may be used.

  In the first embodiment of the present invention, the number of power authentication pulses c output by the power supply apparatus 103 in the power authentication mode in step S302 shown in FIG. 3 is set to 10 at the maximum. However, the present invention is not limited to this. For example, N (N is an integer of 2 or more) times may be used. Furthermore, the number of times the output time t of the power authentication pulse c to be confirmed as power authentication by the power receiving apparatus 101 is measured (the same measurement value for determining that the power supply apparatus 103 can supply power is the same measured value continuously. However, the present invention is not limited to this. For example, M (M is an integer equal to or greater than 1 and M <N) may be used.

  In Embodiment 1 of the present invention, the information notified to the power receiving apparatus 101 before the power feeding apparatus 103 starts power feeding is information related to the amount of power that can be supplied by the power feeding apparatus 103. For example, the information may be predetermined information related to the power supply apparatus 103 such as the performance, function, and device ID (IDentification) / apparatus ID of the power supply apparatus 103.

  In the present invention, when power feeding starts from a power feeding device to a power receiving device in a non-contact manner, predetermined information related to the power feeding device such as the performance, function, and device ID of the power feeding device is notified from the power feeding device to the power receiving device in advance. It is useful for a non-contact power feeding system using electromagnetic waves, a power feeding device, and a power receiving device.

Schematic which shows an example of a structure of the non-contact electric power feeding system which concerns on Embodiment 1 of this invention The block diagram which shows the structure of the electric power feeder in Embodiment 1 of this invention. The figure which shows the procedure after the electric power feeder in Embodiment 1 of this invention detects a power receiving apparatus until it actually starts electric power feeding. The figure which shows the time-dependent change of the electric power pattern which the electric power feeder outputs with respect to a power receiving device in the power receiving device detection mode of the power feeding device which concerns on Embodiment 1 of this invention. The figure which shows the time-dependent change of the power pattern which a power supply apparatus outputs with respect to a power receiving apparatus until it transfers to the power supply mode from the power authentication mode of the power supply apparatus which concerns on Embodiment 1 of this invention. The figure which shows the processing flow in the electric power authentication mode of the electric power supply control means which concerns on Embodiment 1 of this invention. The block diagram which shows the structure of the power receiving apparatus in Embodiment 1 of this invention. The block diagram which shows the structure of the electric power value storage means in Embodiment 1 of this invention. The figure which shows the memory area of the non-volatile memory means in Embodiment 1 of this invention The figure which shows the procedure after the power receiving apparatus in Embodiment 1 of this invention detects the electric power authentication pulse output from a power supply apparatus until it starts power reception. The figure which shows the processing flow in the electric power authentication mode of the power receiving apparatus which concerns on Embodiment 1 of this invention. The block diagram which shows the structure of the conventional non-contact electric power feeder currently disclosed by patent document 1

DESCRIPTION OF SYMBOLS 101 Power receiving apparatus 102 Power receiving coil 103 Power feeding apparatus 104 Power feeding coil 201 Power supply means 202 Current measuring means 203 Non-contact power feeding means 204 Power supply control means 710 Non-contact power receiving means 720 Predetermined information acquisition / power control means 721 Power measurement means 722 Power control Means 723 Power value storage means 724 Load control means 730 Device control means 740 Display means 801 Memory control means 802 Non-volatile memory means 803 Non-volatile memory means 804 Non-volatile memory means 1201 Power supply means 1202 Inverter 1203 Feed coil 1204 Current limiting circuit

Claims (22)

A non-contact power feeding system capable of non-contact power feeding by utilizing electromagnetic induction from a power feeding device to a power receiving device,
The power supply device
Power supply means for outputting power to be supplied to the power receiving device;
A non-contact power feeding means for exciting the non-contact power receiving means included in the power receiving device by the power output from the power supply means, and supplying the non-contact power to the power receiving device;
The power supplied from the non-contact power supply means so that the power receiving device can be supplied with power having a plurality of power waveforms including power having a first power waveform including predetermined information related to the power feeding device. And confirming that the power receiving device has acquired the predetermined information, power supply control means for supplying power having a second power waveform to the power receiving device;
Predetermined information acquisition confirmation means for confirming whether the power receiving apparatus has acquired the predetermined information;
With
The power receiving device is:
Non-contact power receiving means that is excited by the non-contact power supply means and receives power in a non-contact manner;
The power having the first power waveform is detected from the power received by the non-contact power receiving means to acquire the predetermined information, and when the predetermined information is acquired, the predetermined power is supplied to the power supply device. A predetermined information acquisition / power control means for controlling the power supply to the power receiving device,
Device control means for controlling the performance and / or function of the power receiving device according to the predetermined information acquired by the predetermined information acquisition / power control means when receiving the power having the second power waveform;
A non-contact power feeding system comprising: The predetermined information is information related to performance of the power supply apparatus including the amount of power that can be supplied by the power supply apparatus, information related to functions included in the power supply apparatus, or information related to apparatus ID (IDentification) of the power supply apparatus. The contactless power feeding system according to claim 1. The first power waveform is a pulsed power waveform generated at a predetermined cycle, and the power receiving apparatus is notified of the predetermined information in association with a pulse width of the pulsed power waveform, or The non-contact power feeding system according to claim 1, wherein the predetermined information is notified in association with the number of pulses of the pulsed power waveform. The predetermined information acquisition / power control means detects a power having the first power waveform having a pulsed power waveform generated in a predetermined cycle, and a pulse width or the number of pulses of the pulsed power waveform. The non-contact power feeding system according to claim 3, wherein the predetermined information is acquired by measuring. 5. The predetermined information acquisition / power control means notifies the power supply apparatus that the predetermined information has been acquired by changing a load of the power receiving apparatus. The non-contact electric power feeding system of crab. When the predetermined information acquisition / power control means receives power other than the power having the second power waveform from the power supply device, the predetermined information acquisition / power control means is a specific range in which a power supply range for the power reception device is determined in advance. The non-contact power feeding system according to claim 1, wherein the non-contact power feeding system is limited to. The predetermined information acquisition confirming unit confirms whether or not the power receiving apparatus has acquired the predetermined information by detecting a change in the first power waveform supplied to the power receiving apparatus. A contactless power feeding system according to claim 1. The power feeding device further includes a power receiving device detecting unit for detecting the power receiving device, and the power supply control unit adds the power having the first power waveform and the power having the second power waveform. And a function of controlling the power supplied from the non-contact power feeding means to the power receiving device so that the power having the third power waveform can be supplied to the power receiving device.
The power supply control means controls the power receiving device to supply power having the third power waveform prior to supply of power having the first power waveform, and detects the power receiving device. The contactless power feeding according to any one of claims 1 to 7, wherein the means detects that the power receiving device is installed in a power receivable state by detecting a change in the third power waveform. system. When the power receiving device detecting means detects that the power receiving device is installed in a power receivable state, the power supply control means determines the power supplied from the non-contact power feeding means to the power receiving device. The contactless power feeding system according to claim 8, wherein control is performed so that power having the first power waveform is supplied instead of power having three power waveforms. The non-contact power feeding system according to claim 8 or 9, wherein the power having the first waveform is used as the power having the third waveform. A power feeding device capable of non-contact power feeding by utilizing electromagnetic induction for a power receiving device including a non-contact power receiving means,
Power supply means for outputting power to be supplied to the power receiving device;
Non-contact power feeding means for exciting the non-contact power receiving means included in the power receiving device with the power output from the power supply means, and supplying the contactless power to the power receiving device;
The power supplied from the non-contact power supply means so that the power receiving device can be supplied with power having a plurality of power waveforms including power having a first power waveform including predetermined information related to the power feeding device. And confirming that the power receiving device has acquired the predetermined information, power supply control means for supplying power having a second power waveform to the power receiving device;
Predetermined information acquisition confirmation means for confirming whether the power receiving apparatus has acquired the predetermined information;
A power supply apparatus comprising: The predetermined information is information related to performance of the power supply apparatus including the amount of power that can be supplied by the power supply apparatus, information related to functions included in the power supply apparatus, or information related to apparatus ID (IDentification) of the power supply apparatus. The power feeding apparatus according to claim 11. The first power waveform is a pulsed power waveform generated at a predetermined cycle, and the power receiving apparatus is notified of the predetermined information in association with a pulse width of the pulsed power waveform, or The power supply apparatus according to claim 11 or 12, wherein the predetermined information is notified in association with the number of pulses of the pulsed power waveform. The predetermined information acquisition confirming unit confirms whether or not the power receiving apparatus has acquired the predetermined information by detecting a change in the first power waveform supplied to the power receiving apparatus. The power feeding device according to claim 11. In addition to power receiving device detecting means for detecting the power receiving device, the power supply control means includes a third power in addition to the power having the first power waveform and the power having the second power waveform. A function of controlling power supplied from the non-contact power feeding means to the power receiving device so that power having a power waveform can be supplied to the power receiving device;
The power supply control means controls the power receiving apparatus to supply power having the third power waveform prior to supplying power having the first power waveform, and the power receiving apparatus detection means The power feeding device according to claim 11, wherein the power feeding device detects that the power receiving device is installed in a power receivable state by detecting a change in the third power waveform. When the power receiving device detecting means detects that the power receiving device is installed in a power receivable state, the power supply control means determines the power supplied from the non-contact power feeding means to the power receiving device. 16. The power feeding device according to claim 15, wherein control is performed so that power having the first power waveform is supplied instead of power having three power waveforms. 17. The power feeding device according to claim 15, wherein the power having the first waveform is used as the power having the third waveform. A power receiving device capable of non-contact power reception by utilizing electromagnetic induction from a power supply device including a non-contact power supply means,
Non-contact power receiving means that is excited by the non-contact power supply means and receives power in a non-contact manner;
The power having the first power waveform is detected from the power received by the non-contact power receiving means, the predetermined information regarding the power feeding device included in the power having the first power waveform is acquired, and the predetermined When the information is acquired, the predetermined information is acquired and the power is supplied to the power feeding device via the non-contact power receiving means, and the predetermined information acquisition / power for controlling the power supply to the power receiving device is obtained. Control means;
The second power supplied from the power supply device instead of the power having the first power waveform after the predetermined information acquisition / notification means notifies the power supply device that the predetermined information has been acquired. Device control means for controlling performance and / or function of the power receiving device according to the predetermined information acquired by the predetermined information acquisition / power control means at the time of receiving power having a waveform;
A power receiving device comprising: The predetermined information is information related to performance of the power supply apparatus including the amount of power that can be supplied by the power supply apparatus, information related to functions included in the power supply apparatus, or information related to apparatus ID (IDentification) of the power supply apparatus. The power receiving device according to claim 18. The predetermined information acquisition / power control means detects a power having the first power waveform that forms a pulsed power waveform generated in a predetermined cycle, and a pulse width of the first power waveform or a pulse The power receiving device according to claim 18 or 19, wherein the predetermined information is acquired by measuring a number. 21. The predetermined information acquisition / power control means notifies the power supply apparatus that the predetermined information has been acquired by changing a load of the power receiving apparatus. The power receiving device according to any one of the above. When the predetermined information acquisition / power control means receives power other than the power having the second power waveform from the power supply device, the predetermined information acquisition / power control means is a specific range in which a power supply range for the power reception device is determined in advance. The power receiving device according to claim 18, wherein the power receiving device is limited to:

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