Rf-Type Battery Charger Circuit

  
This type of charger couples RF from L2 to an external pickup coil. The pickup coil connects to a rectifier and battery to be charged. This idea is handy because no wire or contacts are required. L2 is 10T #24 wire and L3 is 10T #30 wire.
Rf-Type Battery Charger Circuit - schematic

Both coils are mounted on a 1 V ferrite rod.




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