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Charging station

Belongs to:
Home
Synonyms:
Battery charger, Cell phone charger, Charger, Charger for cordless telephones, Mobile phone charger
Description:

A charging station is a stationary device or a stationary installation that provides energy for the recharging of battery-operated devices or vehicles. Due to the operation with mains voltage, the electrical and magnetic fields have a fundamental frequency of 50 Hz resp. 60 Hz.

In the following, only measurement data for conducted energy transmission is presented. Data regarding wireless energy transmission can be found under "wireless power transfer".

Frequency ranges:
  • 50–60 Hz
Type of field:
electric and magnetic

Measurements (acc. to literature)

charger for cordless phones
Measurand Value Feature Remarks
magnetic flux density 0.05 µT (mean, measured) - average value of 6 devices at a distance of 10 cm; measurement bandwidth: 0 - 3000 Hz [1]
magnetic flux density 0.03 µT (mean, measured) - average value of 6 devices at a distance of 50 cm; measurement bandwidth: 0 - 3000 Hz [1]
mobile phone charger
Measurand Value Feature Remarks
magnetic flux density 0.06 µT (mean, measured) - average value of 3 devices at a distance of 50 cm; measurement bandwidth: 0 - 3000 Hz [1]
magnetic flux density 0.7 µT (mean, measured) - average value of 3 devices at a distance of 20 cm; measurement bandwidth: 0 - 3000 Hz [1]
magnetic flux density 3.37 µT (mean, measured) - average value of 3 devices at a distance of 10 cm; measurement bandwidth: 0 - 3000 Hz [1]
battery charger
Measurand Value Feature Remarks
magnetic flux density 0.2–0.4 µT (maximum) - at a distance of 30 cm [2]
magnetic flux density 0.3–5 µT (measured) - at a distance of 15 cm [2]

References

  1. Ainsbury EA et al. (2005): An investigation into the vector ellipticity of extremely low frequency magnetic fields from appliances in UK homes.
  2. National Research Council (1997): Possible health effects of exposure to residential electric and magnetic fields.