| 摘要 |
Systems and methods are operable to communicate information to a direct current (DC) powered electronic device. An exemplary embodiment receives alternating current (AC) power with an AC information signal modulated thereon, converts the received AC power to DC power, demodulates the received AC information signal to determine information, modulates the information onto the transmitted DC power as a DC information signal, transmits the DC power with the DC information signal over a DC connector to the DC powered electronic device, detects the DC information signal on the modulated DC power at the DC powered electronic device, demodulates the DC information signal from the received DC power, and determines the information at the DC powered electronic device based upon the demodulated DC information. |
| 主权项 |
1. An apparatus, comprising:
a connector configured to electrically couple to a receptacle of an alternating current (AC) power wiring network,
wherein AC power available from the AC power wiring network is defined by an AC voltage and an AC current,wherein the AC power is drawn from the AC power wiring network by the apparatus to provide DC power to an electronic device that is coupled to the apparatus, andwherein the AC power includes an AC information signal modulated thereon as a modulation of the AC voltage; an AC to DC power converter coupled to the connector, wherein the AC to DC power converter is configured to:
receive the AC power from the AC power wiring network;convert the AC power into the DC power, wherein the DC power is defined by a DC voltage and a DC current; andoutput the DC power onto a DC connector that couples the apparatus to the electronic device; an AC modulator/demodulator communicatively coupled to the connector, wherein the AC modulator/demodulator is configured to:
detect the AC voltage of the received AC power;demodulate the AC information signal to determine information, wherein the information is determined based on detected changes in the AC voltage that correspond to the AC information signal; andoutput the determined information; and a DC modulator/demodulator coupled to the AC modulator/demodulator and the DC connector, wherein the DC modulator/demodulator is configured to:
receive the information from the DC modulator/demodulator; andmodulate the received information into a DC information signal onto the DC power,wherein the DC information signal comprises a series of first binary numbers and second binary numbers,wherein each first binary number is defined by a pull up DC voltage, andwherein each second binary number is defined by a pull down DC voltage, wherein the pull up DC voltage increases the DC voltage that is output from the AC to DC power converter to a pull up DC voltage value, wherein the pull down DC voltage decreases the DC voltage that is output from the AC to DC power converter to a pull down DC voltage value, and wherein a difference between the pull up DC voltage value and the pull down DC voltage value corresponds to at least a predefined percentage change. |
