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P9415-R 데이터시트(PDF) 25 Page - Renesas Technology Corp |
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P9415-R 데이터시트(HTML) 25 Page - Renesas Technology Corp |
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25 / 62 page ![]() P9415-R Datasheet © 2021 Renesas Electronics Corporation 25 May 4, 2021 Figure 20. WPC System Feedback Control The P9415-R goes through six phases: Selection, Ping, Identification & Configuration, Negotiation, Calibration, and Power Transfer. 8.2.8 Selection In this phase, the P9415-R senses or delivers the wireless power and proceeds to the Ping state. It monitors the rectified voltage or DEMOD signal, and when the voltage is above the VUVLO_rising threshold, the P9415-R prepares to communicate with the base station or enter power Ping mode. 8.2.9 Ping In this phase, the P9415-R transmits a Signal Strength Packet as the first communication packet to instruct the base to keep the power signal ON (or the P9415-R detects a Signal Strength Packet). After sending/receiving the Signal Strength Packet, the P9415-R proceeds to the Identification and Configuration phase. If, instead, an End of Power Packet is sent or an invalid response is sent, then it remains in the Ping phase. In this phase, the P9415-R sends/expects the following packets: Signal Strength Packet End of Power Packet |
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