Disclosed herein is an AC negative ion and silver ion generator. The AC
negative ion generator includes an AC power supply unit, an oscillation
unit, a switching unit, a boosting unit, and an output unit. The AC power
supply unit supplies an AC voltage required to operate the ion generator.
The oscillation unit oscillates and generates an output pulse having a
certain frequency when the voltage is supplied by the AC power supply
unit. The switching unit performs a switching operation in response to an
output frequency of the oscillation unit. The boosting unit boosts an AC
voltage having a certain frequency, output through the switching unit, to
a high AC voltage required to generate negative ions. The output unit
transmits the high voltage to a discharge electrode placed at a negative
ion generation unit. Accordingly, the AC negative ion generator can
simultaneously generate negative ions and nano-sized silver ions in
indoor air, prevent bad influence of the outflow of a high voltage on
various electronic parts, convert polluted indoor air into clean, fresh
and refreshing air, and perform antimicrobial and disinfecting actions on
various airborne microbes, so that a comfortable and fresh indoor
environment can always be maintained and the cleanliness of indoor air
can be greatly improved, thus improving the metabolism of a human body.