Power Integrations’ CAPZero family of two-terminal, automatic X-capacitor discharge ICs has been certified to meet IEC 62368, the new over-arching safety standard covering TVs and IT equipment. The new standard replaces IEC 60950 and IEC 60065 and will become mandatory.
CAPZero ICs are smart, high-voltage switches that are placed in series with the resistors used to provide a safe discharge path for a power supply’s X capacitor. Without this switching mechanism, these discharge resistors cause a constant power drain while AC is connected and therefore contribute significantly to no-load and standby input power consumption.
These 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, CAPZero automatically and safely discharges the X capacitor by closing the circuit and directing the energy away from the exposed AC plug.
This solution requires minimal modification to system or printed circuit board layout, and allows engineers flexibility in their choice of the X capacitor used, optimising differential-mode EMI filtering and providing a highly cost-effective option for designers optimising no-load consumption, power factor and EMI.
CAPZero ICs can be used before or after the system input fuse, as they inherently meet international safety standards for all open- and short-circuit fault tests. Devices are suitable for all AC-DC converters with X capacitors, and are available with 825 V or 1000 V MOSFETs to support a variety of power supply design needs. Applications include PCs, servers/workstations, monitors and TVs, printers and notebooks, appliances requiring ErP Lot 6 compliance, and adaptors requiring ultra-low no-load consumption.
Read more...Ensuring safety with earth leakage protection NewElec Pretoria
Circuit & System Protection
Earth leakage protection helps mitigate the risks of electric shocks, fires, and equipment damage by swiftly identifying faults and disconnecting the power supply, thus safeguarding both human lives and machinery.
Read more...Suppressing EMI with filters Vepac Electronics
Circuit & System Protection
EMI/RFI filters play an important role in reducing the high-frequency noise that is generated by various electrical and electronic devices.
Read more...Patch attenuates like a shielding cabinet Würth Elektronik eiSos
Circuit & System Protection
Würth Elektronik has launched its hybrid WE-EMIP EMI absorber sheet, a convenient solution for reducing electromagnetic interference by up to 40 dB.
Read more...Clearing the Static: Ionisation equipment Actum Electronics
Circuit & System Protection
Electrostatic discharge (ESD) ionisation equipment is designed to neutralise static charges that accumulate on surfaces in environments where ESD-sensitive components or materials are handled. These ...
Read more...Motor and feeder protection for LV and MV environments NewElec Pretoria
Circuit & System Protection
This relay from NewElec is a micro-controller-based precision instrument with ANSI protection elements, advanced control features, and switchgear controller logic integrating motor and feeder control functions.
Read more...Clearing the Static: ESD dissipative floor mats Actum Electronics
Circuit & System Protection
Dissipative floor mats are specialised mats designed to protect sensitive electronic equipment and components from electrostatic discharge (ESD), by quickly drawing the static electricity off workers before they touch such items.
printer friendly version