Differential Mode Noise
Describes noise which occurs between the live and the neutral
conductors. Caused by load switching locally.
A transient voltage decrease.
Difference between the actual ac voltage waveform delivered
and an ideal sine wave.
EMI – Electro-Magnetic Interference
Electrically induced noise or transients.
An electronic device that allows only certain frequencies to
A battery charging system suitable for UPS batteries. A float
charger maintains a voltage on the battery, known as the float
voltage, which is the ideal voltage for the battery and
maximises battery life. At float voltage, a current flows into
the battery which exactly cancels the battery’s internal self
An undesirable connection that allows current to flow from a
conductor to ground.