带同步伪随机序列PWM开关整流器的单电感双输出无线电源接收器

Yuya Hasegawa, K. Tomita, Subaru Ishihara, Ryutaro Honma, H. Ishikuro
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引用次数: 6

摘要

提出了一种适用于小型无电池应用的单电感双输出无线供电接收器。供电系统采用两个整流器连接到接收电感,由接收电感中与感应交流电压同步的伪随机序列PWM (PRS-PWM)信号开关。输出功率可达8v和16v,峰值效率达40%。最大总发射功率为0.5 W。测试芯片采用高电压(32V) LDMOS选项,采用0.18um cmos设计制作。
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Single-inductor-dual-output wireless power receiver with synchronous pseudo-random-sequence PWM switched rectifiers
A single-inductor dual-output wireless power delivery receiver for small size battery-less applications is presented. The power delivery system uses two rectifiers connected to a receiving inductor switched by pseudo-random-sequence PWM (PRS-PWM) signal synchronized with induced AC voltage in the receiving inductor. The power delivery system can generate 8 V and 16 V with peak efficiency of 40 %. The maximum total transmitting power is 0.5 W. The test chip was designed and fabricated using 0.18um-CMOS with high-voltage (32V) LDMOS option.
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