Wednesday, February 1, 2023

Hybrid Wireless Charging Solution for IoT Devices

By Sharad Bhowmick

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Powermat PMT 100 enables higher performance levels and an efficient charging user experience at an economical price point.

Block diagram of Powermat PMT 100 application (Source: Powermat)

Powermat PMT 100 is a wireless charging solution that allows small IoT devices to be charged more securely at a faster speed. The Powermat PMT 100 is a hybrid solution which utilises both inductive wireless charging and resonance, thus, producing more power, more freedom of positioning, longer ranges between wireless power transmitters and receivers, and lower implementation costs. Furthermore, the module doesn’t require any external receiver, microcontroller and minimal peripheral components, thus reducing design complexity and cost while also reducing the size of the product. Powermat PMT 100 enables higher performance levels and a seamless charging user experience at a price point that supports scale. PMT 100 is suitable for use in various applications including small medical, lifestyle, and smart home internet of things (IoT) devices.

“IoT is unlocking massive business value and stands to revolutionize considerable aspects of our society,” said Powermat CEO Elad Dubzinski. “Whether in the form of small personal health trackers that senses COVID exposure or at-home smart security systems, these devices need reliable wireless power and seamless connectivity to unlock their full functionality—that’s where the Powermat comes in.”

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PMT 100 leverages Powermat’s SmartInductive Technology, which is based on magnetic induction but allows for a broader scope of capabilities than traditional magnetic induction solutions found in the market today. It offers a hybrid solution between inductive wireless charging and resonance, producing more power, more freedom of positioning, longer ranges between wireless power transmitters and receivers, and lower implementation costs.

Powermat PMT 100 Features:
• Receiver max power output: 40W
• Receiver max voltage: 30V
• Max current: 2A
• Extremely small PCBA enabling product miniaturization
• Easy drop and charge solutions for increased misalignment and angular device placement
• Foreign Object Detection (FOD)
• Battery charging and support of smart battery interface
• Cost-saving solution – up to 50% cost reduction in comparison to standard wireless power receivers
• Powermat transmitter solution compatible

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