New from Power Integrations comes the second generation of its CAPZero range of two-terminal, X capacitor discharge ICs. Featuring an expanded X capacitor range from 0,1 μF to 6 μF, and a rating of 1 kV breakdown voltage which allows for a transient voltage capability of 6 kV, CAPZero-2 ICs withstand severe line surges and swells.
These smart, high-voltage switches can significantly reduce no-load and standby input power consumption. Placed in series with resistors that provide a safe discharge path for a power supply’s X capacitor, the devices block current flow to the discharge resistors when AC voltage is applied, cutting the power wasted in these components to zero. When the AC voltage is disconnected, the switch automatically and safely discharges the X capacitor by closing the circuit and directing the energy away from the exposed AC plug.
CAPZero-2 ICs eliminate a key source of power losses while allowing power supplies to comply with IEC 62368-1, the new over-arching safety standard covering a broad segment of energy-using equipment. The new standard replaces IEC 60950 and IEC 60065, and will shortly become mandatory.
Applications include air conditioners, home appliances, small appliances, cookers, vacuum cleaners, TVs, desktop and notebook PCs, projectors, workstations, computer monitors and printers.
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