Razvoj višekanalnog bežičnog punjača LiPo/LiIon akumulatora

master's thesis

• Title (english): Development of Multi-channel Wireless LiPo/LiIon Battery Charger
• Author: Ivana Novoselec
• Mentor: Mario Cifrek (mentor)
• Committee member: Mario Cifrek (predsjednik povjerenstva)
• Committee member: Igor Krois (član povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2021-07-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Sustav za bežično punjenje sastoji se od primarnog dijela sustava, tj. stanice za punjenje, i sekundarnog dijela sustava, tj. uređaja koji se puni. U sklopu ovog Diplomskog rada projektirana je Qi stanica za bežično punjenje uređaja, tj. primarni dio sustava za bežično punjenje koji služi kao predajnik. Qi standard je univerzalni standard za bežično punjenje koji koristi magnetsku indukciju za prijenos energije na podsustav prijemnika koji se nalazi u uređaju koji se puni, kada se taj uređaj stavi na predajnik.
Projektirani predajnik koristi NXQ1TXH5 integrirani krug koji je Qi kompatibilan i certificiran. NXQ1TXH5 ima prekostrujnu zaštitu i zaštitu od pregrijavanja te omogućava svjetlosnu i zvučnu signalizaciju tijekom punjenja. Nadalje, ima implementirano prepoznavanje stranih predmeta, te ograničenje potrošnje u slučaju kada je spojen na izvor napajanja sa strujnim ograničenjem. NXQ1TXH5 podržava punjenje samo jednog uređaja pa višekanalna stanica treba sadržavati onoliko predajnika koliko je uređaja potrebno puniti.

Abstract (english)

A wireless charging system consists of a primary part, i.e. a charging station, and a secondary part, i.e. a charging device. As a part of this Master's thesis a Qi wireless charging station, the primary part of the wireless charging system that serves as a transmitter, was developed. The Qi standard is a universal wireless charging standard that uses magnetic induction to transmit power to a receiver subsystem located in a charging device when that device is placed on a transmitter.
The developed transmitter uses an NXQ1TXH5 integrated circuit that is Qi compatible and certified. NXQ1TXH5 provides power stage protection against overcurrents and overtemperature and also implements a visual and audial user interface. Furthermore, NXQ1TXH5 features Foreign Object Detection, Smart Power Limiting function to adapt to power-limited 5 V supplies, and Static Power Reduction function to limit power consumption. In the multi-channel version, the NXQ1TXH5 transmitter supports charging only one device at a time. Given that, an NXQ1TXH5 multi-channel charging station contains one transmitter for every device that needs to be charged.

• Keywords: bežično punjenje; LiPo/LiIon akumulator; elektromagnetska indukcija; Qi standard; predajnik; NXQ1TXH5; A11 zavojnica; višekanalni bežični punjač
• Keywords (english): wireless charging; LiPo/LiIon battery; electromagnetic induction; Qi standard; transmitter; NXQ1TXH5; A11 coil; multi-channel wireless charger
• Language: croatian
• URN:NBN: urn:nbn:hr:168:833342
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 13:21:21