An Overview of Regulation Topologies in Resonant Wireless Power Transfer Systems for Consumer Electronics or Bio-Implants

Abstract

Abstract:Owing to its relatively high efficiency, extended transmission range, and less exposure to radio frequency radiation, near-field resonant wireless power transfer (R-WPT) has been widely used in consumer electronics and bio-implants. For most applications, a well-regulated output voltage is required against the coupling and loading variations, and thus a regulation scheme should be employed in an R-WPT system. To achieve an optimal receiver (RX) or overall efficiency, together with a reduced cost overhead, several regulation schemes have been proposed in recent years, where the regulation can be implemented at either the RX or transmitter (TX) side, or both. These regulation schemes have been reviewed and comprehensively discussed in this paper. Hence, the main contribution of this paper is to provide a guideline for designing the regulation scheme in R-WPT systems. Moreover, potential new topologies of regulation are investigated here.

Zero Voltage Switching Condition in Class-E Inverter for Capacitive Wireless Power Transfer Applications

“…Over the last few years, wireless power transfer (WPT) has increasingly attracted industry and academia attention, and it is utilized in an increasing number of applications. One of the WPT systems main applications is that of battery charging in biomedical implants [1], electric vehicle wireless charging [2][3][4], mobile phone and electronic consumers [5,6], moving robots [7], and wireless sensors [8,9]. This is due to advantages introduced by this technology; some of them are as follows: WPT allows the product to be completely sealed, making it waterproof; it facilitates the charging process avoiding the use of bulky power cables; and finally, it allows the product life to be increased.…”

A Review of Methods and Challenges for Improvement in Efficiency and Distance for Wireless Power Transfer Applications

“…2 and listed in Table 1 where the most important parameters are displayed. The topic is a recent trend of research and very extensive, thus a review for the whole topic becomes long and exhausting for the reader (Abou Houran et al, 2018;Liu et al, 2018).…”

Practical method for self‐adaptive voltage stabilising of high‐frequency wireless power transfer system

“…Many efforts have been contributed to regulate the output voltage of the WPT system, including the transmitter side (TX) regulation and receiver side (RX) regulation [3]. The overall diagram of the TX and RX regulation methods is shown in Fig.…”