Invention Grant
- Patent Title: Data over power line design
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Application No.: US16025597Application Date: 2018-07-02
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Publication No.: US10541726B1Publication Date: 2020-01-21
- Inventor: Yao Ding , Hui Li
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H04B3/54 ; H03K5/24

Abstract:
A first device provides both power and data to a second device over a power line connection between the two devices. The first device includes a power line extending from a power supply, a ground line extending from a ground, a first impedance in the power line, and a second impedance in the ground line. A modulator comprised of a transistor and modulator impedance is between the first impedance and the second impedance, and a tank capacitor is between the power line and the ground line, outside the first impedance and second impedance. A comparator is coupled between the first and second impedance. A switch may be included to short out the first and second impedance, thereby enabling transmission of only power for period of time, and return to a mode of transmitting both data and power. The first device may also receive data from the second device over the power line connection.
Public/Granted literature
- US20200007190A1 DATA OVER POWER LINE DESIGN Public/Granted day:2020-01-02
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