Contactless Battery Charger


Design files


This reference design is a very small resonant Flyback converter coupled via air (few millimeter distance) from a "receiver". ~ 250mW is wirelessly transferred with an efficiency of 65%.

Output voltage options PMP2562.1
Vin (Min) (V) 8.67
Vin (Max) (V) 10.4
Vout (Nom) (V) 5.5
Iout (Max) (A) .03
Output Power (W) .1375
Isolated/Non-Isolated Isolated
Input Type DC
Topology Linear Regulator

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SLUU683.PDF (255 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SLUR559.PDF (51 K)

Detailed schematic diagram for design layout and components

SLUR560.PDF (29 K)

Complete listing of design components, reference designators, and manufacturers/part numbers


Includes TI products in the design and potential alternatives.

Battery protectors

BQ24300Charger front end protection IC with 30V max Vin and 5.5V LDO output

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
Test report PMP2562 Test Results Oct. 17, 2011

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