CMOS Circuit Design the PCS Biasing for Wireless Power Receiver

In this paper, we examine the methods of biasing the wireless receivers. In traditional methods, the current dependence on the input voltage is high. Because of the large changes in the bias current, the wireless receiver performance is affected. The wireless receiver must first be able to use its biasing circuit to eliminate the need for external sources. The use of existing bias circuits, due to voltage dependence dc, limits the rectifier efficiency. For a WPT receiver, an active rectifier is the trigger of other parts, so that the active diodes are initially operableso that the next circuits can function properly; therefore, for a robust design, the active rectifier bias circuit must be selfbias and there is no need to There is no circuit setup. In addition, a circuit-breaker even consumes power when it closes and disconnects from its original circuit, and thus its performance is affected. That is why the circuit PCS is used to feed the comparators and is almost constant at the time of VAC change. With proper adjustment of the transistor size ratio between MN1, MN2 and MN3, respectively, a power supply can be created which is approximately inversely proportional to the VAC .Basically, by adjusting the peaks of these two flows and the size of the MN2 and MN3 transistors, the final output stream of IB can be designed in other forms as needed. Another advantage of using PCS is that it controls a nearlycontrolled stream in a wide range of power supplies. According to RB, the amount of power supply is determined. The best conditions for the bias current are in the range of 500 Ω to 1 KΩ. Hence, by studying the bias current between the two areas, it is shown that in the 930 Ω range, the best conditions are in the bias current change, which is about 6 %.

کلیدواژه ها:

Wireless Power Transmission ، Active Rectifier ، Inductive Resonant Coupling ، self-biasing circuit